Galvanized steel coils are steel coils that have been coated with a layer of zinc to protect the steel from corrosion This process is known as galvanization These coils are widely used in various industries including construction automotive and manufacturing due to their durability resistance to rust and versatility The zinc coating provides a protective barrier that helps prevent corrosion and increases the lifespan of the steel
HS Code
The Harmonized System HS code for galvanized steel coils typically falls under the following classification
HS Code 7210 Flatrolled products of iron or nonalloy steel galvanized or plated with zinc
Subcategories
721011 Hotrolled galvanized steel
721012 Coldrolled galvanized steel
721030 Other galvanized steel products
Specifications
Material Hotrolled or coldrolled steel
Coating Type Zinc coating galvanized
Coil Weight Typically ranges from 1000 kg to 10000 kg
Coil Width 600 mm to 1500 mm depending on customer requirements
Thickness 02 mm to 30 mm
Zinc Coating Weight Measured in gm typically ranging from 60 gm to 275 gm higher zinc coating for more corrosion resistance
Surface Finish Bright spangled or nonspangled depending on the galvanization process
Edge Type Mill edge slit edge or trimmed edge
Product Standard
The quality and performance of galvanized steel coils are governed by international and national standards Common standards include
ASTM A653A653M Standard specification for steel sheet zinccoated galvanized by the hotdip process
JIS G3302 Japanese Industrial Standard for hotdip galvanized steel sheets
EN 10346 European standard for continuously hotdip coated steel flat products
ISO 3575 International standard for continuously hotdip galvanized steel sheets
* Cut to length TMT as per specific requirement of Customer.
* Cut and bend of TMT in any shape with numerical control
Applications
Construction & Infrastructures
Steel framing, False ceiling, Sandwich panels, ducting, decking, roofing, purlin, HVAC applications.
White Goods
Refrigerators, deeps freezers, washing machines, air coolers.
Automotive
Auto internal components, Bus bodies building.
Containers
Grain silos, trunk, drum & barrels, crash guards /handrails, buckets, gardening cans, milk containers, animal feeding pans, fish pan etc
Galvanised Coil
Specifications
Galvanised as per IS 277 or equivalent grades like ASTM A 653, EN10327
Thickness (mm) - 0.10 to 3.00 mm (Galvanized)
Width(mm) - 30 mm to 1420 mm
Base metal - Cold rolled steel as per IS 513
Spangles -Regular/ Minimised /Suppressed / Zero (Skin pass).
Leveling - With or without tension leveling.
Passivation - Chromated (Trivalent / Hexavalent)
Oiling - non oiled, oiled 100 -450 GSM
Yield strength (MPA) - 240, 360, 550 MPa
Temper - Extra soft, Semi Hard, Full hard
Hardness (HRB) - 35 TO 90
Grades - CQ, DQ, DDQ, EDDQ, HSLA.
Coil weight (MT) - 8(Max)
Winding - Controlled /staggered (+/-5 to +/- 15 mm)
Cut to length TMT as per specific requirement of Customer.
Cut and bend of TMT in any shape with numerical control.
Applications
Construction & Infrastructures
Steel framing, False ceiling, Sandwich panels, ducting, decking, roofing, purlin, HVAC applications.
White Goods
Refrigerators, deeps freezers, washing machines, air coolers.
Automotive
Auto internal components, Bus bodies building.
Containers
Grain silos, trunk, drum & barrels, crash guards /handrails, buckets, gardening cans, milk containers, animal feeding pans, fish pan etc
Galvanised Coil
Specifications
Galvanised as per IS 277 or equivalent grades like ASTM A 653, EN10327
Thickness (mm) : 0.10 to 3.00 mm (Galvanized)
Width(mm) : 30 mm to 1420 mm
Base metal : Cold rolled steel as per IS 513
Spangles : Regular/ Minimised /Suppressed / Zero (Skin pass).
Leveling: With or without tension leveling.
Passivation ; Chromated (Trivalent / Hexavalent)
Oiling : non oiled, oiled 100 -450 GSM
Yield strength (MPA) : 240, 360, 550 MPa
Temper : Extra soft, Semi Hard, Full hard
Hardness (HRB) : 35 TO 90
Grades : CQ, DQ, DDQ, EDDQ, HSLA.
Coil weight (MT) : 8(Max)
Winding : Controlled /staggered (+/-5 to +/- 15 mm)
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