热镀铝锌可供钢种
Steel grades of hot-dip al-Zn coated steel sheets
牌号
用途
Grade
Application
DC51D+AZ
DC52D+AZ
冷成形用
DC53D+AZ
Cold forming
DC54D+AZ
S250GD+AZ
S300GD+AZ
S350GD+AZ
结构用
Structural
S450GD+AZ
S550GD+AZ

型号υ℃51(热镀锌)热镀锌可分为非合金镀锌和合金化镀锌。非合金镀锌包括一般用,机楲咬口用,深冲用,超深冲用材质。当镀锌量大时,耐腐蚀性优越,可作暴露件用;镀锌量小时,加工性能良好合金化镀锌包括冲压用、结构用、冷成型用材质,与纯镀锌层相比,合金化热镀锌的涂附性和焊接性能更优越,但在加工过程中易产生粉化剥离只有上海宝钢生产低碳钢和或超低碳钢QBQB420DC51D+zDC51D+ZF一般用DD51D-z
DC52D+ZDC52D+zF冲压用超低碳钢DC53D+zDC53D+ZF深冲用DC54D+ZDC54D-ZF特深冲用DD54D+ZDCS6D+ZDC56D+ZF超深冲用碳素钢或低合金钢
S220GD+Z.S220GD+ZF S250GD+Z.S250GD+ZF
S280GD+Z. S280GD+ZF
S320GD+Z,S320GD+ZFS350GD+Z350GD+ZFS550GD+Z.S550GD+ZF结构用加磷高
强度钢H220PD+zH220PD+zF冷成形用H260PD+zH260PD+ZF低合金高强度钢

成型性
→满足辊压冲压成形、弯曲和其它形式的加工要求。
Machinability
others processes alke. ng requirements of rolling, coiling and
It can satisfy the proces

热镀铝锌（Galvalume）是现在热镀锌钢带生产线常规的镀层，它具有很强的耐腐蚀性，是纯镀锌板的3倍，而且表面有漂亮的锌花，同时又具有很高的耐热性和热反射性，常用作烟冲、烤箱、灯罩、屋面等。

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