Galvalume Steel Coil ( GL )

Galvalume steel coil gets its name from being coated with a 55% aluminum-43% zinc alloy, also known as Galvalume. This special hot-dipped coating provides both sacrificial galvanic corrosion protection and a paintable surface ideal for architectural panels, roofing, and more.

  • Excellent long-term corrosion resistance makes aluminum-zinc steel coils 2 to 6 times better than galvanized coatings
  • The density of aluminum is 55% less than that of zinc. When the weight and thickness of the coating are the same, the area of the galvanized steel plate is greater than or equal to 3% of the galvanized steel plate.

Advantages

Heat reflectivity

The heat reflectivity of galvalume steel sheet is very high, twice that of galvanized steel sheets. People often use it as heat insulation material.

Heat resistance

Aluminum-zinc alloy steel plate has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius.

Economy

Because the density of 55% AL-Zn is smaller than that of Zn, when the weight is the same and the thickness of the gold plating layer is the same, the area of the galvalume steel sheet is larger.

Easy to paint & Gorgeous

Galvalume has excellent adhesion to paint and can be painted without pre-treatment and weathering. The galvalume steel plate has a gorgeous silver-white surface.

Available Specifications

Thickness(mm): 0.2mm – 1.2mm

Width (mm): 800mm – 1250mm

Inside diameter (mm): 508mm, 610mm, etc

Roll weight (MT): 3MT – 10MT

Hardness: soft, medium hard, hard, full hard

Substrate: dx51d, dx53d

Surface Structure: Normal (non-skinpassed) spangle, Skinpassed spangle, Regular spangle, Minimized spangle

Available Grade List

Standards

Steel grade

Thickness(mm)

Width(mm)

Coating Mass(g/square meter)

European Standards EN 10346:2015

DX51D,

DX52D,

DX53D,

DX54D,

S220GD,

S250GD,

S280GD,

S320GD,

S350GD

S550GD

0.2 – 1.2

800 – 1,250

AZ100

AZ150

AZ185

America standards ASTM A792M

CS(TYPE A, B, C),

FS(TYPE A, B),

DS,

DDS,

SS GRADE,

33(230),

37(255),

40(275),

50(340) CLASS 1~3,

80(550) CLASS 1~3,

0.2 – 1.2

800 – 1,250

AZM100

AZM110

AZM120

AZM150

AZM165

AZM180

Japanese Standard JIS G 3321

SGLCC,

SGLCD,

SGLCDD,

SGLC400,

SGLC440,

SGLC490,

SGLC570,

0.2 – 1.2

800 – 1,250

Z06(60)

Z08(80)

Z10(100)

Z12(120)

Z14(140)

Z18(180)

Z20(200)

Z22(220)

Z25(250)

Z27(270)

Australian Standard AS1397

G1~G3,

G250,

G300,

G350,

G450,

G500,

G550,

0.2 – 1.2

800 – 1,250

AZ150

AZ200

Application

  • Construction: roofs, walls, garages, soundproof walls, pipes, modular homes, etc.
    Automobiles: mufflers, exhaust pipes, wiper accessories, fuel tanks, truck boxes, etc.
  • Home appliances: refrigerator back panels, gas stoves, air conditioners, electronic microwave ovens, LCD frames, CRT explosion-proof belts, LED backlights, electrical cabinets, etc.
  • Agricultural uses: pig houses, chicken houses, granaries, greenhouse pipes, etc.
  • Others: Thermal insulation cover, heat exchanger, dryer, water heater, etc.