Acier Steel Private Limited

Introducing Metal Decking Sheets – The Reliable Choice for Structural Integrity

Metal decking sheets are a durable and versatile solution for composite floor systems, providing exceptional support for concrete slabs. Manufactured from high-quality galvanized steel, these sheets come with 80 gsm, 120 gsm, and 275 gsm coating options for enhanced corrosion resistance and longevity. Available in thicknesses ranging from 0.80 mm to 1.50 mm, our decking sheets ensure maximum strength and stability, making them ideal for industrial, commercial, and residential construction projects.

1. High Load-Bearing Capacity: Designed with a corrugated profile, metal decking sheets offer superior load distribution across the slab, ensuring the structure can support heavy loads. This makes them perfect for high-traffic areas or industrial applications where strength is crucial.

2. Optimized Bonding with Concrete: The special ridges and grooves in the sheets ensure a strong bond with concrete, reducing the need for additional reinforcement. This composite action improves shear resistance and reduces the overall slab thickness, saving both materials and costs.

3. Corrosion Resistance and Longevity: With a choice of 80 gsm, 120 gsm, or 275 gsm protective coatings, metal decking sheets are designed to withstand harsh weather and environmental conditions, offering long-term durability and reducing maintenance requirements.

4. Lightweight and Easy to Install: Despite their strength, metal decking sheets are lightweight, making transportation and installation quick and easy. This reduces construction times and labor costs while ensuring precise placement for optimal structural performance.

5. Dual Purpose: Metal decking sheets act as both a formwork for concrete during construction and a permanent reinforcement after the concrete is poured, eliminating the need for temporary formwork and reducing the time needed on-site.

1. Composite Floor Systems: Metal decking sheets provide robust support for concrete slabs, making them ideal for multi-story buildings, warehouses, and other large-scale projects.

2. Roofing and Mezzanine Floors: These sheets are also suitable for roofing systems and mezzanine floors, offering strength and durability for additional storage or workspaces.

3. Parking Structures: The load-bearing capacity of metal decking sheets makes them perfect for parking decks, where strength and a smooth finish are essential.

Our metal decking sheets are designed for reliability and strength, ensuring your construction project is both efficient and cost-effective. With customizable thickness and coating options, you can tailor our decking sheets to meet the specific needs of your project, ensuring long-lasting performance and easy installation.

• Product Overview: The 0.25mm GI Plain Sheet is an ultra-thin gauge hot-dip galvanized steel flat sheet engineered for lightweight fabrication, precision enclosures, and indoor sheet metal applications where minimal weight and excellent formability are paramount. At just 0.25 mm base thickness, this sheet weighs approximately 1.96 kg/m² (before zinc coating addition), making it ideal for high-volume stamping, roll-forming, and precision bending where dimensional consistency is critical. Produced on a Continuous Galvanizing Line (CGL) from a low-carbon cold-rolled steel substrate, this gauge combines a metallurgically bonded zinc coating with the excellent ductility needed for complex profiles and tight-radius bends without cracking or delamination.
• Technical Specifications: Thickness: 0.25 mm ±0.02 mm | Zinc Coating: Z80 to Z180 g/m² (80 GSM to 180 GSM) | Width Options: 600 mm to 1,250 mm (slit coil or cut sheet) | custom cut lengths available | Surface Finish: Regular spangle, minimum spangle, or zero spangle on request | Tensile Strength: 270–500 N/mm² | Elongation: 22–36% | Hardness: 60–90 HRB | Applicable Standards: IS 277:2003 (BIS), EN 10346, ASTM A653, JIS G3302 | Surface Treatment: Passivated + Oiled (standard), chrome-free passivation available
• Primary Applications: False ceiling grid panels and suspended ceiling systems | Light-duty ventilation duct components, access panels, and grille covers | Appliance back panels, inner liners, and concealed structural frames for washing machines, refrigerators, and microwave ovens | Thin-wall enclosures for electronics, control panel casings, and electrical junction boxes | Automotive interior trim supports and body-line reinforcement brackets | Signage board backing and display panel substrates | Insulation backing sheets for light commercial roofing underlays | Light-duty furniture frame components, storage rack shelving, and locker panels | Cable tray covers and conduit accessories | Precision stampings for FMCG machinery and food processing equipment housings
• Performance and Benefits: Ultra-thin gauge delivers exceptional material cost savings per square metre without sacrificing zinc-based corrosion protection — making it the first choice for cost-sensitive, high-volume fabrication | Low-carbon steel base ensures outstanding cold-formability — processes cleanly on progressive die lines, high-speed rollformers, and CNC press brakes with zero springback issues | Zinc coating delivers dual-mechanism protection: physical barrier layer blocks moisture and oxygen while sacrificial anode action protects cut edges and drill holes where bare steel is exposed | Non-combustible| 100% recyclable at end of life — both zinc and steel are fully recovered through EAF process with zero material waste | Oiled surface treatment prevents white rust bloom during sea freight, long-distance transport, and storage in humid warehouse conditions | Available in zero-spangle finish for superior paint adhesion — ideal for pre-painted components and powder-coated fabrications
• Procurement and Ordering Guide: Available in cut sheet form or slit coil for direct press-shop feeding | MOQ: 100 kg, 500 kg, 1–5 MT (stockist), 5–25 MT (branded mill supply) | Mill Test Report (MTR) with coating weight certification supplied with every order | BIS IS 277 mark available on certified stock | Premium brands — JSW Steel, Tata Steel, AMNS — carry ₹1–₹3/kg premium vs. secondary market but offer documented coating compliance| Request salt spray test certificate for quality-critical indoor enclosure applications | Custom slit widths from 600 mm to 1,250 mm and cut lengths from 1,000 mm to 3,000 mm available with short lead times from major stockists.

• Product Overview: The 0.80mm GI Plain Sheet is a mid-range industrial gauge galvanized steel flat sheet that bridges the gap between light-duty and heavy structural applications. At 0.80 mm, this sheet — equivalent to approximately 22–21 gauge (BWG) — delivers a weight of around 6.28 kg/m² and provides significantly higher rigidity, load-bearing capacity, and dent resistance than thinner gauges, while remaining fully compatible with standard press brake bending, shearing, rollforming, MIG welding, and riveting operations. It is the preferred specification for industrial fabrication shops, HVAC contractors handling large commercial duct systems, machinery enclosure manufacturers, and structural component producers.
• Technical Specifications: Thickness: 0.80 mm ±0.02 mm | BWG Equivalent: 22–21 Gauge | Sheet Weight: ~6.28 kg/m² (base steel) | Base Steel Grade: SGCC / DX51D / DX52D | Zinc Coating: Z120 to Z275 g/m² | Width Options: 600 mm to 1,250 mm | Standard Sheet Sizes: 2440 × 1220 mm (8×4 ft), 2000 × 1000 mm, custom cut lengths | Surface Finish: Regular spangle (standard); zero spangle, skin-pass GPSP on request | Tensile Strength: 270–500 N/mm² | Elongation: 22–36% | Standards: IS 277:2003, EN 10346, ASTM A653, JIS G3302
• Primary Applications: Large-format commercial and industrial HVAC duct fabrication — rectangular ducts, plenums, fan housings, and damper bodies | Industrial machinery enclosures, control panel cabinets, and switchboard bodies | Commercial roofing and wall cladding for factories, warehouses, and industrial sheds | Agricultural and poultry shed panels requiring Z275 coating for ammonia resistance | Structural support brackets, angles, and framing members for mezzanine platforms | Water storage tank panels and drainage channel liners (Z275 recommended) | Generator set canopies and outdoor equipment housing | Food processing machinery frames, conveyor guard covers, and sanitary enclosures | Elevator and lift interior lining panels | Railway coach internal partition panels and ceiling panels
• Performance and Benefits: Higher structural rigidity compared to thinner gauges — 0.80 mm sheets resist deflection and oil-canning in large flat panel applications where 0.50 mm would buckle | Superior dent resistance for industrial use — significantly less susceptible to handling damage, transit denting, and site-impact damage than sub-0.60 mm gauges | With Z180–Z275 coating, this gauge provides 15–35 years outdoor service life with zero maintenance in moderate to industrial atmospheric conditions | Fully weldable via MIG, TIG, and spot welding — with recommended ventilation precautions for zinc fume control | Bendable to 90° and tighter radii on standard press brakes without coating separation — IS 277 bend test compliant | Excellent for heavy-duty powder coating and wet paint systems after chromate or phosphate pre-treatment
• Procurement and Ordering Guide: Widely available through industrial steel stockists, fabrication material distributors, and HVAC material yards | MOQ: 500 kg 1–5 MT , 5 MT+ (mill direct or authorized dealer) | Mill Test Report (MTR) available on every consignment | Indicative price range (India, March 2026, ex-GST): ₹64–₹82/kg depending on zinc coating grade and brand | Bulk discount: ₹0.50–₹2/kg typically available on orders exceeding 10 MT | Specify zinc grade at order stage — Z120 for indoor/semi-exposed, Z180 for outdoor light exposure, Z275 for industrial outdoor and agricultural environments | Available in sheet (cut-to-length) and coil form — coil form preferred for automated rollforming lines and uncoiling press brake operations | Custom slit widths and non-standard cut lengths available

• Product Overview: The 2.00mm Thick GI Sheet with Z275 GSM Zinc Coating represents the heaviest-gauge standard galvanized plain sheet in most stockist inventories — and the specification of choice for tank fabrication, heavy structural base plates, industrial drainage infrastructure, and large-scale agricultural storage systems. At 2.00 mm — equivalent to 14 gauge (BWG) — this sheet weighs approximately 15.70 kg/m² and provides maximum rigidity, load-bearing capacity, and structural integrity of any standard GP sheet grade. The Z275 zinc coating — 275 g/m² total zinc on both sides, approximately 19.3 µm per side — is the highest-volume industrial coating standard globally, specified under IS 277, EN 10346 (Z275), ASTM A653 (G90), and JIS G3302 (Z27), ensuring 25–40 years outdoor service life even in industrial atmospheric environments.
• Technical Specifications: Thickness: 2.00 mm ±0.03 mm | BWG Equivalent: 14 Gauge | Sheet Weight: ~15.70 kg/m² | Base Steel Grade: SGCC / DX51D / S250GD / S350GD | Zinc Coating: Z275 g/m² (275 GSM) — 19.3 µm per side (both sides combined: 27.5 µm equivalent) | Width: 600 mm to 1,250 mm | Standard Sheet Sizes: 2440 × 1220 mm (8×4 ft), 3000 × 1250 mm | Surface Finish: Regular spangle
• Primary Applications: Water storage and rainwater harvesting tanks — domestic, agricultural, and industrial capacity | Industrial sump liners, drainage channel fabrication, and effluent treatment plant structural panels | Agriculture: large-capacity grain silos, fodder storage bins, and fertiliser storage facility panels | Heavy structural base plates and levelling shims for machinery installation | Industrial platform decking, walkway grating, and heavy mezzanine floor systems | Large pre-engineered building (PEB) primary structural components and column base gussets | Marine and offshore support structures (with supplementary protective coating systems) | Road infrastructure — crash barriers, guardrails, and bridge deck protective cladding | Solar farm mounting structure base plates and anchor plate fabrication | Industrial duct manifolds and heavy fan plenum chambers for high-static-pressure HVAC systems
• Performance and Benefits: Maximum structural stiffness  2.00 mm GP sheet delivers the highest rigidity of any standard-stocked galvanized flat product, eliminating deflection, vibration, and oil-canning in large unsupported panel configurations | Z275 coating provides 480 hours neutral salt spray performance before red rust initiation (ASTM B117 test) — the highest standard coating rating for mass-market GP sheet | ISO 14713 corrosion mapping classifies Z275 as providing 25–40 years service in C3 (medium industrial) and C4 (high industrial) corrosivity categories — verified, documented, and insurance-compliant for infrastructure asset management | Sacrificial zinc anode protection at all fabricated edges, weld zones, and mechanical fastener entry points ensures continuous corrosion protection in the most structurally critical areas of any fabricated component | Note: actual 2.00 mm sheet thickness may measure 1.90–1.95 mm in hot-rolled-base material — normal mill tolerance; request coil/plant-cut material | Fully weldable by MIG, TIG, and heavy resistance welding — compatible with standard structural welding consumables | Non-combustible material — meets all building code fire performance requirements without treatment | 100% recyclable — highest-sustainability steel product classification
• Procurement and Ordering Guide: Stocked at major industrial steel yards, structural fabrication material suppliers, and authorized first-tier dealers

• Product Overview: The 0.60mm to 3.00mm Mid-Heavy GI Steel Sheet range encompasses the core structural and industrial heart of the galvanized plain sheet product family — covering gauges from 24 gauge (0.60 mm) through to 12–13 gauge (3.00 mm) in a single sourcing category. This is the range most demanded by fabrication contractors, construction companies, heavy engineering workshops, HVAC contractors, agricultural infrastructure builders, and pre-engineered building (PEB) system manufacturers. Every thickness within this range is produced via hot-dip galvanizing on a Continuous Galvanizing Line (CGL) to IS 277, EN 10346, ASTM A653, and JIS G3302 standards, with zinc coating grades from Z120 to Z350 g/m² available to match the required service life and exposure environment of every application.
• Technical Specifications by Sub-Range:
  • 0.60 mm (24 Ga) — 6.28 kg/m²: Commercial roofing, wall cladding, HVAC medium-duty ducts, gutters and downpipes | Z120–Z180 recommended
  • 0.76 mm (22 Ga) — 5.97 kg/m²: Commercial and light industrial roofing, HVAC heavy-duty rectangular ducts, shed and warehouse cladding | Z180 recommended
  • 1.00 mm (20 Ga) — 7.85 kg/m²: Structural HVAC, industrial cladding, framing members, steel shuttering | Z180–Z275
  • 1.20 mm (~18 Ga) — 9.42 kg/m²: PEB secondary structure, heavy industrial cladding, silos, water tanks | Z275
  • 1.60 mm (16 Ga) — 12.56 kg/m²: Heavy structural platform decking, tank panels, crane runway brackets | Z275
  • 2.00 mm (14 Ga) — 15.70 kg/m²: Tank fabrication, heavy structural base plates, drainage channels | Z275
  • 2.50–3.00 mm — 19.63–23.55 kg/m²: Heavy infrastructure, bridge components, port equipment housing, industrial drainage | Z275–Z350
• Applications Across the Full Range: Commercial and industrial roofing and wall cladding systems | HVAC duct fabrication from light commercial to heavy industrial specification | Agricultural silos, poultry and livestock housing, and agri-shed structural cladding | Water storage tanks, drainage channels, and irrigation infrastructure | Pre-engineered building (PEB) systems — secondary structure, purlins, girts, and eaves struts | Structural panel systems — solar farm mounting frames, telecom tower cladding, guardrail backing | Heavy machinery enclosures, transformer housings, and electrical panel bodies | Marine superstructure cladding and port cargo-handling equipment housings | Road, rail, and airport infrastructure fabrication — signage, crash barriers, platform edge panels
• Performance and Benefits: One supplier, full gauge range — sourcing the complete 0.60–3.00 mm range from a single stockist or mill channel partner simplifies procurement, ensures coating batch consistency, and enables volume aggregation for better per-kg pricing | Z275 GSM coating across all thicknesses above 0.80 mm delivers 25–35 years outdoor service life under IS 277 / ISO 14713 criteria — documented, certifiable, and appropriate for infrastructure asset management systems | Sacrificial zinc anode protection is active at every cut edge, fastener point, and weld zone across all gauges — no touch-up painting required for standard structural applications | Fully weldable across the range using standard MIG/MAG equipment with appropriate ventilation
• Procurement and Ordering Guide: Single-source procurement for the full 0.60–3.00 mm range available from major industrial steel stockists and authorized mill agents | MOQ: 500 kg per thickness (distributor), 1–3 MT (stockist), 5 MT+ (mill direct) | Mill Test Report supplied for every thickness and zinc coating grade

• Product Overview: The 1000mm Width GI Sheet — colloquially referred to as 3.25 feet wide — is a purpose-slit galvanized plain sheet width that occupies a practical middle ground between the narrow 900 mm width and the standard 1,220 mm format. The 1,000 mm width emerged from specific fabrication requirements where 1,220 mm sheets produce excessive off-cut waste in applications that need net panel widths between 900 mm and 1,100 mm — HVAC ductwork, agricultural panel cladding, custom enclosure fabrication, and rollforming operations producing profiles in the 950–1,000 mm coverage range. By specifying 1,000 mm slit coil or cut sheet, fabricators can achieve zero-waste or minimal-waste cutting plans on wide-dimension components, directly reducing material cost, scrap volume, and total production cost per unit.
• Technical Specifications: Width: 1,000 mm ±2 mm | Standard Sheet Length: 2,000 mm (most common), 2,440 mm, 3,000 mm, and custom cut lengths | Thickness Range: 0.30 mm to 2.00 mm | Common Thicknesses Stocked: 0.40 / 0.50 / 0.60 / 0.80 / 1.00 / 1.20 mm | Base Steel Grades: SGCC / DX51D / DX52D | Zinc Coating: Z100 to Z275 g/m² | Surface Finish: Regular spangle (standard), zero spangle or GPSP on request | Tolerance: ±2 mm width, ±0.02 mm thickness, ±5 mm length | Standards: IS 277:2003, EN 10346, ASTM A653, JIS G3302
• Primary Applications: HVAC wide duct fabrication — 1,000 mm width enables zero-waste production of 950 mm duct face panels from a single sheet | Agricultural shed liner panels in 1,000 mm module cladding systems | Custom electrical enclosure and control panel body fabrication where 1,000 mm blanks minimise cutting operations | Rollforming of 950–980 mm net-coverage roofing profiles from 1,000 mm parent width coil — optimal material utilisation for large coverage profiles | False ceiling main-runner and tile carrier rail systems requiring 1,000 mm width substrate strips | Industrial conveyor guard cover panels and machinery guarding in 1,000 mm width modules | Grain storage silo panel blanks for large-diameter silos requiring 1,000 mm arc-section blanks | Food processing and pharmaceutical equipment housing where 1,000 mm module panels simplify installation and hygiene-cleaning access | Custom vehicle body panels and trailer siding in 1,000 mm width segments
• Performance and Benefits: Material waste elimination — for applications with 950–1,000 mm net panel requirements, ordering 1,000 mm width eliminates the 220 mm off-cut scrap inherent in cutting from standard 1,220 mm sheets — directly reducing effective material cost by 15–18% on these applications | Slit coil in 1,000 mm width fed directly into rollforming or press-brake operations eliminates manual sheet handling and reduces labour cost versus cut-sheet supply | Same coating performance as wider formats — all zinc coating grades (Z100–Z275) available in 1,000 mm width, delivering identical corrosion protection, service life, and compliance to IS 277 as standard-width material | Sacrificial anode zinc protection active at all slit edges and cut edges | Non-combustible, BIS IS 277 certifiable, 100% recyclable — identical performance documentation to standard width product | Weldable, bendable, shearable on all standard sheet metal plant | Zero spangle surface available for paint and powder-coat applications requiring superior adhesion

• Product Overview: The Z275 GSM GI Plain Sheet - carrying a total zinc coating of 275 grams per square metre on both sides combined - is the premier construction-grade galvanized plain sheet specification and the most widely mandated zinc coating class in Indian and global infrastructure standards. Designated as Z275 under EN 10346, G90 under ASTM A653, Z27 under JIS G3302, and 275 GSM under IS 277:2003, this coating delivers approximately 19.3 µm of zinc per side across a full zinc-iron alloy layer structure (Gamma–Delta–Zeta–Eta phases) that provides both a dense physical barrier against moisture and oxygen and a sacrificial anodic electrochemical protection system that preserves steel integrity at every cut edge, fastener point, and weld zone. Z275 is the minimum recommended coating for all outdoor construction applications under IS 277 and the coating grade mandated by CPWD, PMAY housing specifications, and major infrastructure project QA requirements in India.
• Technical Specifications: Zinc Coating: Z275 g/m² (275 GSM) - total both sides combined | Zinc per side: ~137.5 g/m² (~19.3 µm) | Triple Spot Test (IS 277): 275 g/m² average, 250 g/m² minimum single-spot | ASTM equivalent: G90 (both sides) | JIS equivalent: Z27 | Salt spray performance (ASTM B117): 480 hours to first red rust | ISO 14713 outdoor life (C3 moderate industrial): 25–35 years | Thickness range: 0.30 mm to 3.00 mm | Width: 600 mm to 1,250 mm | Standards: IS 277:2003, EN 10346, ASTM A653 (G90), JIS G3302 (Z27)
• Why Z275 is the Benchmark Coating:
  • Maximum standard coating for open-market supply: Z275 is the highest zinc coating grade regularly stocked from standard CGL output - Z350 typically requires special mill order
  • 25–35 year outdoor service life: Under IS 277 / ISO 14713 C3 atmospheric conditions, Z275 coating outlasts paint systems, epoxy coatings, and lower zinc grades by a substantial margin
  • 480-hour salt spray performance: This industry-benchmark test result validates Z275 for industrial, agricultural, and coastal-adjacent applications
  • Sacrificial anode protection at cut edges: Even at shear cuts, drill holes, and weld zones, the surrounding zinc sacrificially corrodes to protect exposed steel - no edge-specific treatment required
  • CPWD and PMAY mandated: Government housing and infrastructure projects in India increasingly specify Z275 as the minimum standard, making this the compliance coating for institutional supply
• Primary Applications: Commercial and industrial roofing - Z275 is the minimum recommended grade for all outdoor roofing applications per IS 277 Note | Construction structural framing - purlins, girts, steel stud framing systems | Agricultural infrastructure - grain silos, poultry house cladding, agri-shed framing (Z275 mandatory for ammonia-exposure environments) | Water storage tank panels and drainage infrastructure | Solar farm mounting frames and wind energy structural components | Road and highway infrastructure - guardrails, signage, crash barriers | Telecom tower cladding and outdoor equipment housing | Pre-engineered building (PEB) primary and secondary structure | Heavy HVAC duct systems in industrial environments
• Procurement and Ordering Guide: Z275 is a standard stocked coating grade at all major industrial distributors and authorized mill dealers | Available on all thicknesses from 0.30 mm to 3.00 mm - confirm stock vs. order-in requirement for extreme gauges | Indicative prices (India, March 2026, ex-GST): ₹50–₹88/kg across the thickness range - Z275 carries a ₹1–₹2.50/kg premium over Z120 at equivalent thickness due to higher zinc content

• Product Overview: The 0.50mm GI Sheet for HVAC Ducting Works is the single most specified and highest-volume galvanized plain sheet gauge used in the Indian and global HVAC (Heating, Ventilation, and Air Conditioning) ductwork fabrication industry. At 0.50 mm — equivalent to approximately 26–27 gauge (BWG) and weighing just 3.93 kg/m² — this sheet delivers the precise combination of rigidity, formability, zinc corrosion resistance, and material economy that makes it the default specification for rectangular air conditioning supply and return air ducts in commercial buildings across India. It is directly referenced in IS 655:1963 (Specification for Metal Air Ducts) and aligns with SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) ductwork standards for light-to-medium commercial HVAC system design pressure classes. Produced to IS 277:2003 with Z120 to Z180 zinc coating, 0.50 mm GI sheet is the backbone of the HVAC fabrication industry.
• Technical Specifications (HVAC Ducting Grade): Thickness: 0.50 mm ±0.02 mm | BWG Equivalent: 26–27 Gauge | Sheet Weight: 3.93 kg/m² (base steel) | Base Steel Grade: SGCC / DX51D (Commercial Quality) | Zinc Coating: Z120 g/m² (standard ducting grade) to Z180 g/m² (kitchen and high-humidity applications) | Standard Sheet Sizes: 8×4 ft (2440×1220 mm), 6×3 ft (1830×915 mm) | Surface Finish: Regular spangle (standard for duct fabrication) | Tensile Strength: 270–500 N/mm² | Elongation: 22–36% | Standards: IS 277:2003 (BIS), IS 655:1963 (HVAC Ducts), SMACNA HVAC Duct Construction Standards, EN 10346
• HVAC Duct Applications — Where 0.50mm is Specified:
  • Central AC supply air ducts: Office buildings, IT parks, hospitals, hotels, airports — standard 0.50 mm specification for duct widths up to 750 mm
  • Return air ducts and plenums: 0.50 mm provides adequate stiffness for standard negative-pressure return air systems
  • Ventilation shafts: Fresh air intake and exhaust ventilation risers in multi-floor commercial buildings
  • Fan coil unit (FCU) connections: 0.50 mm flexible-to-rigid transition duct connections in 4-pipe FCU systems
  • Split AC ductwork: Concealed duct split and cassette unit interconnecting ductwork in residential and commercial installations
  • Exhaust and extract systems: Toilet exhaust, car park ventilation extract, and general exhaust ductwork — 0.50 mm with Z120 minimum
  • Kitchen ventilation: 0.50 mm with Z180 coating for grease-laden air exhaust hoods and canopy connection ducts
• Performance and Benefits for HVAC Applications: IS 655 and SMACNA compliant gauge — specifying 0.50 mm GI sheet for the appropriate duct pressure class ensures project compliance with Indian and international HVAC installation standards, enabling MEP consultant sign-off and BMS integration without material-related delays | Z120 zinc coating provides 10–15 years service life in internal building HVAC environments — where condensation on duct outer surfaces, humid internal air streams, and moisture-laden return air are constant operational conditions

• Product Overview: Bright Finish GI Plain Sheets are galvanized plain steel sheets produced with an enhanced, high-gloss surface appearance - achieved either through electro-galvanizing (EG) processes that deposit zinc via electroplating for ultra-smooth mirror-like finishes, or through zero-spangle hot-dip galvanizing combined with skin-pass (temper) rolling that creates a smooth, semi-bright, spangle-free surface superior in paintability, flatness, and aesthetic appeal to standard regular-spangle material. Bright finish GI sheets are the preferred specification wherever the galvanized surface is either directly visible (appliance panels, architectural hardware, consumer products) or where it serves as a substrate for high-quality paint, powder coat, or laminate systems that demand the maximum possible surface smoothness and adhesion uniformity. Ready stock availability means these sheets are held in inventory at authorised stockists for immediate dispatch without minimum mill-order lead times.
• Technical Specifications: Surface Finish Variants: (A) Electro-Galvanized (EG) - Bright: Zinc coating Z20–Z40 g/m², mirror-bright, zero spangle, ultra-precise dimensional tolerance | (B) Zero-Spangle Hot-Dip (HDG) + Skin-Pass: Zinc coating Z80–Z275 g/m², smooth semi-bright, uniform appearance, superior to standard spangle | Thickness Range: 0.18 mm to 1.60 mm (EG: 0.18–0.80 mm; zero-spangle HDG: 0.30–1.60 mm) | Width: 600 mm to 1,250 mm | Sheet Sizes: 2440×1220 mm (8×4 ft) and custom cut lengths | Base Steel Grades: SGCC, DX51D, DX52D (Drawing Quality for EG automotive grade) | Standards: EG - ASTM A879, EN 10152 | Zero-spangle HDG - IS 277:2003, EN 10346, ASTM A653
• Primary Applications: Electro-Galvanized (Bright): Automotive outer body panels (car doors, hoods, trunk lids) - the OEM standard for visible painted surfaces | Consumer appliance visible surfaces - refrigerator door panels, washing machine front plates, oven casings | Precision electronic equipment enclosures and instrument housings | Decorative architectural hardware and interior fit-out metalwork | High-specification furniture and office equipment panels
  Zero-Spangle HDG + Skin-Pass (Semi-Bright): Pre-painted GI (PPGI) feedstock - superior paint adhesion base for polyester and PVDF coated products | Powder-coated structural and architectural components requiring smooth substrate | Solar panel mounting brackets where aesthetic uniformity matters | Clean room and pharmaceutical facility panels | High-quality electrical distribution panels and MCC bodies | Precision rollformed profiles where consistent surface texture matters
• Performance and Benefits: Superior paint and powder-coat adhesion - zero-spangle and skin-pass surfaces eliminate the irregular crystalline texture of standard spangle that creates micro-shadows, edge-coating voids, and adhesion inconsistencies under paint or powder coat | Electro-galvanized bright finish provides the tightest dimensional tolerance of any galvanized process - zinc coating thickness variation < 1 µm across the sheet width, critical for precision stamping and deep-drawing automotive operations | Zero-spangle surface tested to superior neutral salt spray performance at equivalent coating weights vs. regular-spangle material - smoother surface has fewer initiation sites for corrosion | Skin-pass rolling improves yield strength control, flatness, and surface hardness - enabling more consistent results in high-speed automated stamping and rollforming lines | Non-combustible (Class A fire rating) - identical fire performance to all other GI sheet variants | 100% recyclable - zinc fully recoverable in EAF process for both EG and HDG variants | BIS IS 277 compliance available on zero-spangle HDG + skin-pass variants

Our color-coated roofing sheets, manufactured in Mumbai, are designed for durability, aesthetic appeal, and rapid delivery. With customizable thickness, coating levels, and color options, these sheets meet the needs of residential, commercial, and industrial projects, ensuring reliable, long-lasting roofing solutions.