L360管線管鋼坯:
L360管線管鋼坯是生產(chǎn)鋼材的半成品,一般不能直接供社會使用。
鋼坯是通過三種工藝方法生產(chǎn)的:一是通過煉鋼系統(tǒng)的連鑄設(shè)備,由鋼水直接澆鑄成鋼坯(詳見第四章);二是對煉鋼系統(tǒng)生產(chǎn)的鋼錠或連鑄坯通過軋鋼系統(tǒng)的軋制設(shè)備加工出來的鋼材半成品;三是對煉鋼系統(tǒng)生產(chǎn)的鋼錠通過鍛造設(shè)備加工出來的半成品。www.tpepiw.cn
鋼坯新產(chǎn)品分類結(jié)構(gòu)如下圖:
 按生產(chǎn)工藝分類                        軋制坯
                按生產(chǎn)工藝分類                        軋制坯   

 鍛造坯
鍛造坯
 連鑄坯
                                                      連鑄坯


 按鋼的化學(xué)成份分類                     非合金鋼坯
               按鋼的化學(xué)成份分類                     非合金鋼坯  

 低合金坯
                                                      低合金坯

 合金鋼坯
                                                      合金鋼坯 
 鋼坯
鋼坯

 方   坯
                                           方   坯


 大方坯
                                                        大方坯

 
                                                   



 按形狀及用途分類                        方坯
                按形狀及用途分類                        方坯
 矩形坯
                                           矩形坯
 
 

 大矩形坯
                                                        大矩形坯
 
                                                  
 矩形坯
                                                        矩形坯

 板坯
                                                        板坯

 扁平坯
                                            扁平坯         
 薄板坯
                                                        薄板坯
 異形坯
異形坯
 管坯
管坯