鍛鋼制螺紋管件標記和標志
管(guan)(guan)件與管(guan)(guan)子的連接(jie)方式采(cai)用(yong)螺(luo)紋連接(jie),而工藝采(cai)用(yong)模鍛成(cheng)型和切削加工或利用(yong)型材直接(jie)加工等方法制(zhi)造(zao)的管(guan)(guan)件稱(cheng)為鍛鋼制(zhi)螺(luo)紋管(guan)(guan)件。這種(zhong)管(guan)(guan)件的規格較小,通(tong)常公稱(cheng)通(tong)徑范圍為DN8~DN100。一、標(biao)記 1.標(biao)記內容 2.標(biao)記示例 公稱(cheng)通(tong)徑DN50、壁厚...