The surface of galvalume/aluzinc steel coil presents a smooth, flat, and gorgeous spangle, with a silver white base color.The coating composition is composed of 55% aluminum, 43.4% zinc, and 1.6% silicon by weight.The production process of galvalume/aluzinc steel coil is similar to galvanized steel coil , and is a continuous molten coating process. Galvalume/aluzinc steel coil combines the characteristics of aluminum oxidation resistance and zinc sacrificial anode, with better anti-corrosion performance than galvanized steel coil, especially in harsh environments.Galvalume/aluzinc steel coil has better processing performance and appearance, suitable for occasions with high anti-corrosion grade,excellent durability, and good appearance requirements.
Galvalume Steel Coil/Aluzinc Steel Coil（GL） |
Width | 700mm - 1250mm | Zinc Coating | AZ20 - 180g/m2 |
Thickness | 0.12mm - 2.5mm | ID of Coil | 508/610mm |
Length | As Require | Type | Coil/Sheet/Plate/Strip |
Commercial Grade | SGCLC, DX51D + AZ, ASTM A792 CS B |
Structure Grade | SGC340/400, G450/G550, SS37/SS40, S320GD/S350GD/S450GD |
Spangle | Regular Spangle, Minimized Spangle |
Surface Treatment | Anti-Finger Print/ Skin Pass / Oiled / Dry / Chromated |
Packing | Export seaworthy package, suit for all kinds of transport, bundled with strong steel strips with waterproof packing materials |
Product Name | Grade | Yield Strength/Mpa | Tensile Strength/Mpa | Elongation After Breaking |
Low-carbon steel | DX51D+AZ | ≤360 | ≤440 | ≥20% |
DX52D+AZ | ≤260 | 300-360 | ≥28% |
Gapless atomic steel | DX53D+AZ | ≤200 | 270-320 | ≥38% |
DX54D+AZ | ≤180 | 270-310 | ≥40% |
Structural steel | S250GD+AZ | ≥250 | ≥330 | ≥19% |
S350GD+AZ | ≥350 | ≥420 | ≥16% |
S450GD+AZ | ≥450 | ≥510 | ≥14% |
S550GD+AZ | ≥550 | ≥560 | / |
Special material for keel | LG550GD+AZ | ≥550 | ≥560 | ≥5% |
