牌號(hào) | CR240BH |
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(lèi) | 碳鋼 |
標(biāo)簽 | 冷軋烘烤硬化鋼板 |
說(shuō)明 | 牌號(hào)字符的含義: ①低碳鋼: CR=冷軋cold rolled俐填;HR=熱軋hot rolled片效;0=Commerical quality;1=Drawing quality艘励;2=Deep Drawing quality;3=Special deep Drawing quality雁碘;4=Extra deep Drawing quality哩拔;5=Super deep Drawing quality。如:CR1 ②高強(qiáng)度鋼: 軋制形式同上啥拘;CR或HR后數(shù)字=最小屈服強(qiáng)度影焙;BH=烘烤硬化;IF=無(wú)間隙原子血肯;LA=低合金襟笋;S=with controlled sulfide inclusions (optional)。如:CR180BH ③多相鋼 軋制形式同上途居;CR或HR后數(shù)字xxxY=最小屈服強(qiáng)度抵肌,xxxT=最小抗拉強(qiáng)度;-CP=復(fù)相袍镀;-DP=雙相默蚌;-DH=增強(qiáng)成形雙相;-MS=馬氏體苇羡;-TR=相變誘導(dǎo)塑性TRIP绸吸;-FB=鐵素體貝氏體。如:CR1220Y1500T-MS ④涂層類(lèi)型 -EG=電鍍鋅層设江;-GI=熱浸鍍鋅锦茁;-GA=熱浸鍍新鐵合金(鍍鋅);熱浸鍍鋁硅合金叉存;-ZM=熱浸鍍鋅鎂合金码俩。如:CR3-GI40/40,表示冷軋材料雙面熱浸鍍鋅鹉胖,鍍鋅層質(zhì)量為40克每平方米 ⑤表面質(zhì)量 -U=未暴露的握玛;-E=暴露够傍;-/-=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 |