Stockist & supplier IS 277 · ASTM A653
Galvanized Steel Sheets — IS 277 & ASTM A653
Galvanised steel sheet is thin carbon steel sheet with a hot-dip zinc coating for corrosion protection. Teshi Group stocks and supplies plain and corrugated galvanised sheet and coil to IS 277 and ASTM A653, with coating mass as ordered. Quotes are sent in 24–48 hours.
Also called: GI sheet, galvanised sheet, GP sheet, zinc coated steel sheet, GI coil
What is a Galvanized Steel Sheet?
Galvanised (GI or GP) sheet is produced on a continuous hot-dip line where cold-rolled or hot-rolled steel strip passes through molten zinc. The coating mass is specified per unit area, total on both sides, for example Z275 (275 g/m²) in IS 277 or G90 under ASTM A653. Heavier coatings give longer life outdoors. Sheet is supplied in commercial, drawing and structural qualities. It is used for roofing and cladding, ducting, cable trays, panels, enclosures and general fabrication.
Key features
- Stockist and supplier — sourced from galvanising mills; Teshi does not manufacture sheet
- Hot-dip zinc coated to IS 277 and ASTM A653
- Coating mass as ordered, e.g. Z120, Z180, Z275
- Plain sheet, corrugated sheet and coil
- Commercial, drawing and structural qualities
- Mill certificates showing coating mass
Specification
| Supply | Stockist & supplier — Teshi Group, India |
|---|---|
| Standards | IS 277, ASTM A653 / A653M |
| Coating | Hot-dip zinc; coating mass as ordered (e.g. Z275 / G90) |
| Product forms | Plain sheet, corrugated sheet, coil; sizes per mill programme, others against order |
| Qualities | Commercial, drawing and structural grades per the standard |
| Testing | Coating mass, bend and tensile tests per the standard |
| Documents | Mill test certificate to EN 10204 3.1; third-party inspection when the order specifies |
Applications
- Roofing and wall cladding
- HVAC ducting
- Cable trays and enclosures
- Panels and partitions
- General sheet-metal fabrication
Technical data sheets
Dimensions & weights
FAQ
Galvanized Steel Sheet: common questions
What does Z275 mean?
Z275 is a coating designation meaning 275 g/m² of zinc, total on both sides. A higher number means a thicker coating and longer corrosion life.
What is the difference between GI and GP sheet?
Both are hot-dip galvanised. 'GP' (galvanised plain) usually refers to flat sheet and 'GI' is used broadly for galvanised iron sheet including corrugated. Order by standard and coating mass.
Can galvanised sheet be welded?
Yes, but the zinc burns off at the weld and gives off fumes. Use ventilation and touch up the coating after welding. Zinc-rich paint is commonly used for touch-up.
Does Teshi manufacture galvanised sheet?
No. Teshi Group is a stockist and supplier of Galvanized Steel Sheet, sourced from established mills and supplied with the original mill test certificate. Teshi is an OEM manufacturer of flanges, fittings, fasteners, valves and custom fabrications, which can be ordered with it.
Need a size or grade not listed here?
We source against your specification from approved mills, with mill test certificates and inspection before dispatch.
Send us your specificationTraceability
From mill heat to your site
- 01
Approved mill material
Received against the mill certificate; heat number registered.
- 02
Forging & machining
Heat number carried through every stage in our Indian works.
- 03
PMI, dimensional & NDT
Every lot inspected to the governing standard; TPI witness on request.
- 04
Stamped & certified dispatch
Hard-stamped pieces with EN 10204 3.1 / 3.2 certificates.
Quick RFQ
Quote for Galvanized Steel Sheet in 24–48 hours
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