（2010年）最新公称压力（MPa）管道壁厚对照表（一）无缝碳钢管壁厚mm材料PNMPa_________________________________________________________DN_________________________________________________________1015202532405065801001251502002503003504004505006002012CrMo15CrMo12CrlMoV≤1.62.5-3--3-3.53.5-4--4-—4-_4-4.5-5-6-7-—7--8-88-9-2.52.5~^-2-3.53.5—4--4-—4--4-4.5-5-67~-7-8~8^910_4-2.5-3--3--3-3.53.5_4--4-4.55.57-8-910111213156.4_3~-3--3-3.53.53.5~4-4.5-5--6--8-—9-1112141617192210-3-3.53.5-4-4.54.5-5--6--7--8--9-10131518202216_4-4.5-5--5--6-—8--9-111315192426303420-4-4.5-6--6-_7-8-9-11131518222832364.0T3.5-4--4-4.5-5--5-5.510Cr5Mo≤1.62.5-3--3-3.53.5-4-4.5—4-_4-4.55.5-7-—8-888-9-2.52.5-3--3-3.53.5—4-4.5—4--5-4.55.5-7--7--8--9-~9^1012_4-2.5-3--3-3.53.5—4-4.5-5-5.5-6--8--9-1011121415186.4-3--3--3-3.5—4--4-4.55.5-7-_8--9-111314161820222610-3-3.5_4-44.5—5-5.5-7--8-~9-1012151822242616-4~4.5-5--5--6-~8--9-10121518222832364020-4-4.5-6--7--8-~9~11121518222634384.0T3.5-4--4-4.5-5--5-5.516Mn15MnV≤1.62.52.52.5-3-3.53.53.53.5—4-4.5-5-5.5—6--6-6672.52.52.52.5-3--3-3.53.53.53.544.55.5-6-77842.52.52.5-3--3-3.53.544.55-6-7-8-_8-_9-1011126.42.5-3-3.53.53.544.55-6-7_8--9-111213141618103.53.5444.55~6^7_8--9-1113151719163.53.544.555-6-7-8-_9-11121619222528203.5—4-4.55.5-6--7-_8-~9-11131519242630材料PNMPa_________________________________________________________DN_________________________________________________________101520253240506580IOO125150200250300350400450500600lCrl8Ni9Ti含MO不锈钢≤1.0—2-22.52.52.52.52.52.5-3--3-3.53.53.5-4--4-4.51.622.52.52.52.52.5-3--3--3-3.53.5-4-4.5-5--5-2.522.52.52.52.52.5-3--3--3-3.53.5—4-4.5—5-66-7-_4-2.52.52.52.52.5-3-3.5—4-4.5-5--6--7--8-9106.42.52.52.5—3~-3-_3~3.5_4-4.5678101113144.0T_3~3.53.5—4-—4--4-4.5（三）焊接钢管壁厚材料PNMPa_____________________________________________DN_____________________________________________200250300350400450500600700800900IOOOIlOO120014001600焊接碳钢管（Q235A20）0.25-5-~^-5-_5--5--5-_6--6--6--6--6--6-70.6_5--5--6--6--6--6--6--7--7--7--7-8-8--8--9-10---5--5--6-~6^-6--7-—8--8-_9-_9-101111121.6-6~-6-—7--7--8--8--9-101112131415162.5_8--9--9-101112131516焊接不锈钢管025-3--3-3.53.53.5-4--4-_4-4.54.50.6-3-3.53.53.5-4-—4-4.5-5--5--6--6---3.53.544.54.5_5-5.5-6--7--7--8-1.644.55-6^-6-77-8~-9-102.55-6-7-8-_9-_9-10121315（二）无缝不锈钢管壁厚mm
