发布时间：2010/9/3
|
钢管种类
|
外径(D)
|
壁厚(S)
|
||
|
冷拔无缝钢管
|
钢管外径(mm)
|
允许偏差(mm)
|
钢管壁厚(mm)
|
允许偏差(mm)
|
|
>30～50
|
±0.3
|
>3～20
|
±10%
|
|
标准
|
牌号
|
抗拉强度（MPa）
|
屈服强度（MPa）
|
伸长率（%）
|
硬度
|
|
GB3087
|
10
|
335～475
|
≥195
|
≥24
|
/
|
|
20
|
410～550
|
≥245
|
≥20
|
/
|
|
|
GB5310
|
20G
|
410～550
|
≥245
|
≥24
|
/
|
|
20MnG
|
≥415
|
≥240
|
≥22
|
/
|
|
|
25MnG
|
≥485
|
≥275
|
≥20
|
/
|
|
|
15CrMoG
|
440～640
|
≥235
|
≥21
|
/
|
|
|
12Cr2MoG
|
450～600
|
≥280
|
≥20
|
/
|
|
|
12Cr1MoVG
|
470～640
|
≥255
|
≥21
|
/
|
|
|
12Cr2MoWVTiB
|
540～735
|
≥345
|
≥18
|
/
|
|
|
10Cr9Mo1VNb
|
≥585
|
≥415
|
≥20
|
/
|
|
|
ASME SA210
|
SA210A-1
|
≥415
|
≥255
|
≥30
|
≤143HB
|
|
SA210C
|
≥485
|
≥275
|
≥30
|
≤179HB
|
|
|
ASME SA213
|
SA213 T11
|
≥415
|
≥205
|
≥30
|
≤163HB
|
|
SA213 T12
|
≥415
|
≥220
|
≥30
|
≤163HB
|
|
|
SA213 T22
|
≥415
|
≥205
|
≥30
|
≤163HB
|
|
|
SA213 T23
|
≥510
|
≥400
|
≥20
|
≤220HB
|
|
|
SA213 T91
|
≥585
|
≥415
|
≥20
|
≤250HB
|
|
|
SA213 T92
|
≥620
|
≥440
|
≥20
|
≤250HB
|
|
|
DIN17175
|
ST45.8/Ⅲ
|
410～530
|
≥255
|
≥21
|
/
|
|
15Mo3
|
450～600
|
≥270
|
≥22
|
/
|
|
|
13CrMo44
|
440～590
|
≥290
|
≥22
|
/
|
|
|
10CrMo910
|
480～630
|
≥280
|
≥20
|
/
|
