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
- The original product from Indonesia.
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Galvanized GI Steel Rolls & Plates & Coils
Whatâ??s the difference between galvanized GI steel coils and plates?
I. Definition
Galvanized GI Steel coil and galvanized sheet are galvanized steel. The galvanized coil is a continuous hot dip galvanized coil in the production process. While galvanized sheet is a single hot dip galvanized sheet in the production process.
2. the production process
The production process of galvanized coil and galvanized sheet is different.
The production process of galvanized coil generally includes multiple processes such as coil heating, hot dip galvanizing and shearing into coil.
The galvanized sheet is generally the zinc alloy coating through the hot dip technology directly coated to the surface of the steel plate.
So the production process is relatively simple, the process difficulty is relatively low.
3. material thickness
The material thickness of galvanized coil and galvanized sheet is also slightly different.
Generally speaking, the thickness of galvanized coil is relatively thin. We mainly use it for the production of cold rolled, coating and other thin steel products.
The thickness of galvanized sheet is relatively thick. We mainly use it in the manufacture of glass fiber reinforced plastic, automotive panels, roof panels and other steel products requiring strength and corrosion resistance.
4. Advantages and Disadvantages
Both galvanized coil and galvanized sheet have their own advantages and disadvantages.
The production cycle of galvanized coil is short, the process is simple, and it is suitable for the production of low thickness and high precision steel products.
The galvanized sheet has the advantage of hardness, corrosion resistance, wear resistance and other multiple properties.
However, the production process of galvanized sheet is time-consuming and laborious, and the production cost is relatively high.
5. Application fields
The application areas of galvanized coil and galvanized sheet are also different.
Galvanized coil is usually used in the production of home appliances, building materials, auto parts, pipes and other high-demand steel products.
The galvanized sheet is mainly used in automobile manufacturing, construction engineering, petroleum, chemical and other industries.
In addition, because of the good corrosion resistance of galvanized sheet, it is also widely used in Marine engineering, railway, bridge and other fields.
We deals in the following products of India, China, Taiwan and Korea Origin:-
Cold Rolled Steel (Cold Rolled Steel Strips, Cold Rolled Steel Coils, Cold Rolled Sheets etc)
We deals in the following products of India, China, Taiwan and Korea Origin:-
Galvanized Steel (Galvanized Steel Tapes, Galvanized Steel Wires, Galvanized Steel Strips, Galvanized Steel Coils, Galvanized tubes etc)
Metal base - Cold rolled steel coil
Thickness - 0.14mm-1.2mm
Width - 600mm-1250mm
Coil ID - 508mm,according to request
Zinc Coating - 40-275g/m2
Coil weight - 3-5 tons,according to request
Finish - Hot dipped galvanized
Hot sale size -750mm,762mm,800mm,900mm,914mm,1000mm,1200mm,1220mm,1250mm
* 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)
65Mn CK67 high carbon cold rolled spring steel strip
Hardened and Tempered Steel Strip
Hardened and Tempered is a thermal process that strengthens steel strips through a controlled heating and cooling process. The hardening process involves heating the steel strip to above the rapidly cooling. The steel strip in this condition is extremely brittle and requires further treatment in the tempering. Then strips are reheated to a lower temperature and holding it at the given temperature for a given period of time. This process is done in an inert atmosphere to avoid oxidation. This type of steel strip has big degree of toughness and has excellent spring properties
Standard AISI, ASTM, BS, DIN, GB, JIS
Place of Origin China
Material Hot Rolled
Surface Polished
Application shutter door, plastic trowel, bricklayer trowel, putty knives, scraper, springs, metal part, shoe insole, shoe accessories, blade, band saw blade
Brand Name HENSON
Width 2.0mm-300.0mm
Length Customize
Tolerance +/-10%
Hardness 40-55HRC
Surface nature, blue, yellow, white, polish
Edge Slit,Round,Square
MOQ 1000KGS
Tolerance thickness+/-0.01mm max,width +/-0.05mm max
Type strip,coil,sheet
Coil ID 300-500 mm
Tensile Strength 540-1575N/mm2
Yield Strength 370-1475N/mm2
