牌號(hào) | CR700Y980T-DH |
對(duì)應(yīng)標(biāo)準(zhǔn) | VDA 239-100-2016
冷成形用薄鋼板 Sheet Steel for Cold Forming |
歸類 | 合金鋼 |
標(biāo)簽 | 冷軋薄鋼板 改善成型性能雙相鋼 |
說明 | 牌號(hào)字符的含義: ①低碳鋼: CR=冷軋cold rolled;HR=熱軋hot rolled南蓬;0=Commerical quality;1=Drawing quality;2=Deep Drawing quality计鹦;3=Special deep Drawing quality;4=Extra deep Drawing quality;5=Super deep Drawing quality。如:CR1 ②高強(qiáng)度鋼: 軋制形式同上欧蠢;CR或HR后數(shù)字=最小屈服強(qiáng)度;BH=烘烤硬化架讳;IF=無間隙原子榴烦;LA=低合金;S=with controlled sulfide inclusions (optional)文饱。如:CR180BH ③多相鋼 軋制形式同上绝壹;CR或HR后數(shù)字xxxY=最小屈服強(qiáng)度,xxxT=最小抗拉強(qiáng)度融吓;-CP=復(fù)相判阀;-DP=雙相;-DH=增強(qiáng)成形雙相寓落;-MS=馬氏體括丁;-TR=相變誘導(dǎo)塑性TRIP荞下;-FB=鐵素體貝氏體伶选。如:CR1220Y1500T-MS ④涂層類型 -EG=電鍍鋅層;-GI=熱浸鍍鋅尖昏;-GA=熱浸鍍新鐵合金(鍍鋅)仰税;熱浸鍍鋁硅合金;-ZM=熱浸鍍鋅鎂合金抽诉。如:CR3-GI40/40陨簇,表示冷軋材料雙面熱浸鍍鋅,鍍鋅層質(zhì)量為40克每平方米 ⑤表面質(zhì)量 -U=未暴露的迹淌;-E=暴露河绽;-/-=適用于對(duì)表面質(zhì)量無特殊要求的熱軋材料 ⑥表面處理:-P=預(yù)磷化 |