GALVANIZED STEEL COILS

GALVANIZED STEEL COILS 1.) Thickness: 0.2mm-1.6mm 2.) Width: 600mm-1300mm 3.) Quality Assurance offered

GALVANIZED STEEL COILS

The zinc layer on the surface of the galvanized steel sheet isolates the steel sheet from atmosphere to prevent further corrosion of the base sheet and ensures a long service life of the base sheet, due to the excellent corrosion resistance of the galvanized steel sheets. Besides, our galvanized steel sheets are economic and functionally diverse, meeting the requirements of different environments and applications and provide high added value for various combination of products. Now, the galvanized steel sheets are in common use in many fields such as precision instruments, computers, electronic appliances, architectures, color coating, etc.

CHARACTERISTICS

CORROSION RESISTANCE

The improved corrosion resistance of 55% AI-Zn alloy-coated steel coils is derived from the unique combination of the barrier protection of the aluminum and the sacrificial protection of the zinc. The formation of an insoluble aluminum oxide layer provides the barrier protection while the zinc provides a sacrificial protection at cut edges, scratches and areas of coating damage.

Outdoor exposure testing of 55% AI-Zn alloy-coated steel onus has been conducted for over 20 years in various atmospheric environments. This testing also demonstrated a superior cut edge protection of 55% AI-Zn alloy-coated steel sheet than the galvanized steel sheet

HEAT RESISTANCE

Similar to the aluminum coated steel sheet that can resist high temperature oxidation, 55% AI-Zn alloy-coated steel sheet demonstrates better resistance to high temperature than the galvanized steel sheet.  55% AI-Zn alloy-coated steel sheet can be used in temperatures up to 315ºC.

HEAT TRANSMISSION AND REFLECTIVITY

55% AI-Zn alloy-coated steel coil has a high reflectivity value making it an effective barrier against heat.

APPLICATIONS

BUILDING & CONSTRUCTION

Floor decks, ceilings, verandas, rolling doors, warehouse, partitions, sheds, gutters, wall, underground piping, sashes, beams, fences, scaffolding, indoor decorations, ducts, ventilating pipes, steel frames and cable trays

ELECTRICAL APPLIANCES

Freezers, video recorder cases, motor cases, lighting fittings, water heaters, washing machines, refrigerators, stoves, air conditioners, dehumidifiers, fluorescent light housings, electrical heaters, toasters, microwave oven enclosures and switch boxes

TRANSPORTATION

Containers, under body panels, bus & truck body panels, fuel tanks, noise screens, highway signs, air cleaners, conveyor systems and guard rails

AGRICULTURAL EQUIPMENT

Barns, drying machines, animal houses, hoppers, irrigation systems, greenhouses, water tanks, sheds, silos, agricultural implements and feeders

FURNITURE & OTHERS

Vending machines, drums, cans, pails, sauna inner parts, chimney pipes, entertainment machines, solar collectors, office equipment, steel furniture, tool boxes, garages and waste bins

COMPUTER'S APPLIANCES

Computer shells and communication instruments

MANUFACTURING PROCESS

SPECIFICATION

Product Name	Hot-Dip Galvanized Coils
Standard	Size Available
JIS	Skinpass		Without Skinpass
Specification	Order Width (mm)	Base Material Gauge (mm)	Order Width (mm)	Base Material Gauge (mm)
SGCC	900~940940~10401040~11001100~12201220~12301230~1250	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.60	900~940940~10401040~11001100~12201220~12301230~12501250~12601260~1270	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.600.35~1.220.58~1.22
SGC 340	900~10501050~12201220~12501250~1260	0.20~1.600.28~1.600.40~1.600.80~1.60	900~10501050~12201220~12501250~1260	0.20~1.600.28~1.600.40~1.600.80~1.60
SGC 400	900~960960~11101110~12201220~12401240~1260	0.28~1.600.35~1.600.38~1.600.40~1.600.60~1.60	900~11001100~12401240~12601260~1270	0.35~1.600.40~1.600.60~1.600.70~1.20
SGC 440SGC 490	900~920920~12301230~1250	0.28~1.600.35~1.600.40~1.60	900~920920~12301230~1250	0.28~1.600.35~1.600.40~1.60
SGC 570SGCH	900~920920~940940~12301230~1250	0.21~1.600.25~1.600.28~1.600.47~1.40	900~920920~940940~12301230~1250	0.21~1.600.25~1.600.28~1.600.47~1.40
SGCD1	900~1250	0.30~1.60	900~1250	0.30~1.60
Coating Mass and Applicative Range of Gauge of Cold-Rolled Coils.	Z08 , Z10:0.30 ~ 1.60 mmZ12 , Z18 , Z20 , Z22 , Z25 , Z27:0.20 ~ 1.60 mmZ35 , Z450:.40 ~ 1.60 mm8

Product Name		Hot-Dip Galvanized Coils
Standard		Size Available
ASTM (2001 Ed.)		Skinpas		Without Skinpass
Specification (Metric)	Specification (Imperial)	Order Width(mm)	Base Material Gauge (mm)	Order Width(mm)	Base Material Gauge (mm)
A653M CSA653M FS	A653 CSA653 FS	900~940940~10401040~11001100~12201220~12301230~1250	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.60	900~940940~10401040~11001100~12201220~12301230~12501250~12601260~1270	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.600.35~1.220.58~1.22
A653M SS Grade230	A653 SS specGrade33	900~940940~10401040~11001100~12201220~12301230~1250	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.60	900~940940~10401040~11001100~12201220~12301230~12501250~12601260~1270	0.20~1.600.23~1.600.24~1.600.25~1.600.26~1.600.35~1.600.35~1.220.58~1.22
A653M SS Grade255	A653 SSGrade37	00~10501050~12201220~12501250~1260	0.20~1.600.28~1.600.40~1.600.80~1.60	900~10501050~12201220~12501250~1260	0.20~1.600.28~1.600.40~1.600.80~1.60
653M SS Grade275	A653 SS Grade40	900~960960~11101110~12201220~12401240~1260	0.28~1.600.35~1.600.38~1.600.40~1.600.60~1.60	900~11001100~12401240~12601260~1270	0.35~1.600.40~1.600.60~1.550.70~1.20
A653M SS Grade340	A653 SS Grade50	900~920920~12301230~1250	0.28~1.600.35~1.600.40~1.60	900~920920~12301230~1250	0.28~1.600.35~1.600.40~1.60
A653M SS Grade550	A653 SS Grade80	900~920920~940940~12301230~1250	0.21~1.600.25~1.600.28~1.600.47~1.40	900~920920~940940~12301230~1250	0.21~1.200.25~1.600.28~1.600.47~1.40
A653M DDS	A653 DDS	900~1250	0.30~1.60	900~1250	0.30~1.60
Coating Mass and Applicative Range of Gauge of Cold-Rolled Coils.		Metric:Z080:0.30 ~ 1.60 mmZ120 , Z180 , Z275:0.20 ~ 1.60 mmZ350:0.40 ~ 1.60 mmImperial:G40 , G60 , G90:0.20 ~ 1.60 mmG115:0.40 ~ 1.60 mm

B.Range of Weight: 40g/m2 ~ 200g/m2C.Surface: Regular spangle, Extra smoothD.Grade Available: commercial, lock forming, drawing and structural grades

A.Surface Treatment: Regular Spangle, Mini Spangle, Extra Smooth

1.) REGULAR SPANGLE:  

Regular spangle is also called normal spangle which is naturally formed without any additional treatment during galvanizing.

2.) MINI SPANGLE:

The spangle is restrained and formed as mini spangle by reducing the lead content in the zinc liquid or by blowing the zinc powder from the equipment installed on the zinc pot 

3.) EXTRA SMOOTH :

The mini spangle is further skin-passed to produce the extra smooth surface. 

B.Grade Available: commercial, lock forming, drawing and structural grades

JIS G3302-1998 / Classified symbol		Yield Point Minimum N/mm2	Tensile Strength MinimumN/mm2	Elongation Minimum %						Application
				Nominal Thickness mm (t)
cold-rolled base metal	hot-rolled base metal			0.25≤t<0.4	0.4≤t<0.6	0.6≤t<1.0	1.0≤t<1.6	1.6≤t<2.5	t≥2.5
SGCC	SGHC	---	---	---	---	---	---	---	---	Commercial
SGCH	---	---	---	---	---	---	---	---	---	Commercial Hard
SGCD1	---	---	270	---	34	36	37	38	---	Drawing
SGC340	SGH340	245	340	20	20	20	20	20	20	Structural
SGC400	SGH400	295	400	18	18	18	18	18	18	Structural
SGC440	SGH440	335	440	18	18	18	18	18	18	Structural
SGC490	SGH490	365	490	16	16	16	16	16	16	Structural
---	SGH540	400	540				16	16	16	Structural
SGC570		560	570	---	---	---	---	---	---	Structural
ASTM Designation1999		Yield Point Minimum	Tensile Strength Minimum	Elongation Minimum %						Application
		ksi(MPa)	ksi(MPa)
A653(M)-99 CS TYPE A,B,C		---	---	---						Commercial
A653(M)-99 FS TYPE A,B		---	---	---						Lock Forming
A653(M)-99 DDS		---	---	---						Drawing
A653(M)-99 SS Grade33(230)		33(230)	45(310)	20						Structural
A653(M)-99 SS Grade37(255)		37(255)	52(360)	18						Structural
A653(M)-99 SS Grade40(275)		40(275)	55(380)	16						Structural
A653(M)-99 SS Grade50(340)		50(340)	65(450)	12						Structural
A653(M)-99 SS Grade80(550)		80(550)	82(570)	---						Structural

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GALVANIZED STEEL COILS