牌號(hào) | CR1 |
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 | 碳鋼 |
標(biāo)簽 | 冷軋低碳鋼板 |
說(shuō)明 | 牌號(hào)字符的含義: ①低碳鋼: CR=冷軋cold rolled;HR=熱軋hot rolled;0=Commerical quality骑晶;1=Drawing quality冀肆;2=Deep Drawing quality;3=Special deep Drawing quality某扑;4=Extra deep Drawing quality;5=Super deep Drawing quality。如:CR1 ②高強(qiáng)度鋼: 軋制形式同上艇劫;CR或HR后數(shù)字=最小屈服強(qiáng)度;BH=烘烤硬化惩激;IF=無(wú)間隙原子店煞;LA=低合金;S=with controlled sulfide inclusions (optional)风钻。如:CR180BH ③多相鋼 軋制形式同上顷蟀;CR或HR后數(shù)字xxxY=最小屈服強(qiáng)度酒请,xxxT=最小抗拉強(qiáng)度;-CP=復(fù)相展管;-DP=雙相陕牲;-DH=增強(qiáng)成形雙相;-MS=馬氏體瓣老;-TR=相變誘導(dǎo)塑性TRIP芒极;-FB=鐵素體貝氏體。如:CR1220Y1500T-MS ④涂層類型 -EG=電鍍鋅層崇已;-GI=熱浸鍍鋅户挟;-GA=熱浸鍍新鐵合金(鍍鋅);熱浸鍍鋁硅合金贱起;-ZM=熱浸鍍鋅鎂合金中痴。如:CR3-GI40/40,表示冷軋材料雙面熱浸鍍鋅椭皿,鍍鋅層質(zhì)量為40克每平方米 ⑤表面質(zhì)量 -U=未暴露的掐悄;-E=暴露;-/-=適用于對(duì)表面質(zhì)量無(wú)特殊要求的熱軋材料 ⑥表面處理:-P=預(yù)磷化 |