55% AI-Zn ALLOY-COATED STEEL COILS

Galvalume steel coil 1.) Thickness: 0.2mm-1.2mm 2.) Width: 600mm-1250mm 3.) Quality Assurance offered

Galvalume steel coil

55% AI-Zn ALLOY-COATED STEEL COILS

The aluminum-zinc alloy for 55% Al-Zn alloy-coated steel coils consists of 55% aluminum, 43.4% zinc and 1.6% silicon, solidified at 600ºC high temperature. The whole structure is a quaternary AI-Fe-Si-Zn compound which becomes a protection layer on the steel sheet to prevent penetration of corrosive factors effectively.

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 55% AI-Zn Alloy-Coated Steel Coils
Standard	Size Available
	Skinpass		Without Skinpass
Specification	Order Width (mm)	Base Material Gauge (mm)	Order Width (mm)	Base Material Gauge (mm)
SGLC	900~920920~10001000~12001200~12201220~1250	0.20~1.200.22~1.200.23~1.200.25~1.200.30~0.80	900~920920~10101010~12001200~12201220~1250	0.20~1.200.22~1.200.23~1.200.25~1.200.30~1.20
SGL 340	900~11101110~1220	0.30~1.200.37~1.20	900~920920~1250	0.27~1.200.30~1.20
SGL 400	900~920920~1220	0.32~1.200.35~1.20	900~1250	0.35~1.20
SGL 440SGL 490	900~10501050~1220	0.33~1.200.40~1.20	900~10501050~1250	0.33~1.200.40~1.20
SGL 570	900~914914~10501050~1220	0.21~1.000.23~1.000.30~1.00	900~914914~10501050~1220	0.21~1.000.23~1.000.30~1.00
SGLD1	900~1250	0.30~1.20	900~1250	0.30~1.20
Coating Mass and Applicative Range of Gauge of Cold-Rolled Coils.	AZ050, AZ070, AZ090, AZ100, AZ120, AZ150, AZ165:0.20~1.20mmAZ180:0.20 ~ 0.96 mmAZ200:0.30 ~ 0.80 mm

Classified symbolcold-rolled base metal		Yield Point Minimum N/mm2	Tensile Strength Minimum N/mm2	Elongation Minimum %					Application
				Nominal Thickness mm (t)
JIS G3321-1998	specification			0.25≤t<0.4	0.4≤t<0.6	0.6≤t<1.0	1.0≤t<1.6	1.6≤t<2.3
SGLCC	SGLC	(205)	(270)	(20)	(21)	(24)	(24)	(25)	Commercial
SGLCD	SGLD1	---	270	---	27	31	32	33	Drawing
---	SGL340	245	340	20	20	20	20	20	Structural
SGLC400	SGL400	295	400	16	17	18	18	18	Structural
SGLC440	SGL440	335	440	14	15	16	18	18	Structural
SGLC490	SGL490	365	490	12	13	14	16	16	Structural
SGLC570	SGL570	560	570	---	---	---	---	---	Structural
ASTM Designation1999		Yield Point Minimum	Tensile Strength Minimum	Elongation Minimum %					Application
		ksi(MPa)	ksi(MPa)
A792(M)-99 CS TYPE A,B,C		---	---	---					Commercial
A792(M)-99 FS		---	---	---					Lock Forming
A792(M)-99 DS		---	---	---					Drawing
A792(M)-99 SS Grade33(230)		33(230)	45(310)	20					Structural
A792(M)-99 SS Grade37(255)		37(255)	52(360)	18					Structural
A792(M)-99 SS Grade40(275)		40(275)	55(380)	16					Structural
A792(M)-99 SS Grade50(345)		50(345)	65(450)	12					Structural
A792(M)-99 SS Grade80(550)		80(550)	82(570)	---					Structural

Guide to Ordering  When placing an order, check the following items according to the intended use. 

1. Specification

2. Size

3. Packaging Mass

4. Coil ID/OD

5. Surface Finish

6. Reversal Use

7. Edge Finishing

8. Applications

9. Other

Have available total year.

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