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1、#*(2010(2010 年年) )最新公称压力（最新公称压力（MPa)MPa)管道壁厚对照表管道壁厚对照表（一）无缝碳钢管壁厚 m mDN 材料PNMPa1015202532405065801001251502002503003504004505006001.62.533333.53.544444.5567788892.52.533323.53.544444.55677889104.02.533333.53.5444.555.578910111213156.43333.53.53.544.5567891112141617192210.033.53.544.54.556789101315182
2、02216.044.55566789111315192426303420.044.556678911131518222832362012CrMo15CrMo12Cr1MoV4.0T3.5444.5555.51.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.56891011121415186.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.55567891
3、0121518222832364010Cr5Mo20.044.5567891112151822263438#*4.0T3.5444.5555.51.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.5677894.02.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810.0333.53.5444.556789111315171916.03.53.544.55567891112161922252816M
4、n15MnV20.03.544.555.5678911131519242630(二)无缝不锈钢管壁厚 mmDN 材料PNMPa1015202532405065801001251502002503003504004505006001.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.556674.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113141Cr18
5、Ni9Ti含 Mo 不锈钢4.0T33.53.54444.5#*（三）焊接钢管壁厚 mmDN 材料PNMPa200250300350400450500600700800900100011001200140016000.2555555556666667770.6556666677778889101.055666778899101111121.6667788910111213141516焊接碳钢管（Q235A20）2.578991011121315160.2533333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781
6、.644.5566778910焊接不锈钢管2.556789910121315#*#*内压金属直管的壁厚根据 SH 3059-2001石油化工管道设计器材选用通则确定：当 S00.220.320.500.800.200.4530ZG20CrMo0.150.250.40.70.170.370.91.20.50.70.20.331ZG20CrMoV0.180.250.40.70.140.370.91.20.50.70.20.3钢 管32ZG15Cr1Mo1V0.120.200.40.70.170.370.91.20.81.20.20.4化学成分%机械性能(不小于)硫 S磷 P钢 材 类 别序 号钢
7、号标准号其 它 不大于抗拉强度 b kg/屈服点 s kg/延伸率 s %冲击值 b kgm/备注#*1715MnVYB231700.0500.0505440181812CrMoYB23770Cu0.300.0400.04042252171915CrMoYB23770Cu0.300.0400.040452621620Cr5MoYB237700.0300.035402022122112CrMoVYB529700.0400.0405440172212Cr2MoWVBYB529700.0350.03555351823 12Cr3MoVSiTiBYB529700.0350.0356445182412C
8、rMoVYB529700.0400.04048 4526 2621 196 5纵向 横向251Cr18Ni9TiYB804700.0300.035564026 Cr18Ni13Mo2TiYB804700.0300.03560352700Cr18Ni10YB804700.0250.0355050钢 板28 00Cr17Ni13Mo2YB804700.0250.035604029ZG25YB979-670.040.044524204.530ZG20CrMo0.030.03472518331ZG20CrMoV0.030.035032143钢 管32ZG15Cr1Mo1V0.030.035535203.5#*#*