1、SCH表示壁厚等級；表示外徑。DN外徑mmSCH5sSCH10sSCH20sSCH20SCH30SCH40sSCH40SCH60SCH80sSCH80SCH100SCH120SCH140SCH160XXSmmmmmmmmmmmmmmmmmmkg/mmmmmmmkg/mmmmmmm10171.21.6 2.0 2.5 2.5 3.2 3.5 15221.62.0 2.5 3.0 3.0 4.0 4.0 5.0 7.5 20271.62.0 2.5 3.0 3.0 4.0 4.0 5.5 8.0 25341.62.8 3.0 3.5 3.5 4.5 4.5 6.5 9.0 (32)421.62.8

2、 3.0 3.5 3.5 5.0 5.0 6.5 10.0 40481.62.8 3.0 4.0 4.0 5.0 5.0 7.0 10.0 50601.62.8 3.5 3.5 4.0 4.0 5.0 5.5 5.5 7.0 8.5 11.0 (65)762.0 3.0 3.5 4.5 5.0 5.0 6.0 7.0 7.0 8.0 9.5 14.0 80892.0 3.0 4.0 4.5 5.5 5.5 6.5 7.5 7.5 9.0 11.0 15.0 1001142.0 3.0 4.0 5.0 6.0 6.0 7.0 8.5 8.5 11.0 14.0 17.0 (125)1402.0

3、3.5 5.0 5.0 6.5 6.5 8.0 9.5 9.5 13.0 16.0 19.0 1501682.8 3.5 5.0 5.5 6.5 7.0 7.0 9.5 11.0 11.0 14.0 18.0 22.0 2002192.8 4.0 6.5 6.5 7.0 8.0 8.0 10.0 13.0 13.0 15.0 18.0 20.0 24.0 23.0 2502733.5 4.0 6.5 6.5 8.0 9.5 9.5 13.0 15.0 15.0 18.0 22.0 25.0 28.0 25.0 3003254.0 4.5 6.5 6.5 8.5 9.5 10.0 14.0 17

4、.0 17.0 22.0 25.0 28.0 34.0 26.0 3503564.0 5.0 8.0 9.5 11.0 15.0 19.0 24.0 28.0 32.0 36.0 4004064.55.0 8.0 9.5 13.0 17.0 22.0 26.0 32.0 36.0 40.0 4504578.0 11.0 14.0 19.0 24.0 30.0 35.0 40.0 45.0 5005089.5 13.0 15.0 20.0 26.0 32.0 38.0 45.0 50.0 5505599.5 13.0 17.0 22.0 28.0 35.0 42.0 48.0 54.0 6006

5、109.5 14.0 18.0 25.0 32.0 38.0 45.0 52.0 60.0 備注:SCH*s指奧氏不銹鋼,壁厚超過SCH80s按碳鋼管選用帶括號者不推薦使用美標(biāo) ASTM A182 Gr F22 對應(yīng)中國在美標(biāo)材質(zhì)中，A182開頭的材質(zhì)都是不銹鋼，GR:等級（GRADE）F22:鍛件，具體是12Cr1MoV 25Cr2MoV 20Cr1Mo1VAPIPE,SMLS,:pipe seamless(無縫管) BE,：beveled（坡口） S-20,：sch20 管件的壁厚 CS：cast steel 鑄鐵 ASTM： American Society of Testing Materials 美國材料試驗協(xié)會， SA106：美標(biāo)的一個標(biāo)準(zhǔn) GR.B,：grade b B等級 ASME:ASME是American Society of Mechanical Engineers（美國機械工程師協(xié)會）的英文縮寫. ASME-B36.10M:這里的意思-boiler and pressure vessel code(氣壓標(biāo)準(zhǔn)) by the way:B