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GB3087

10

335～475

≥195

≥24

/

20

410～550

≥245

≥20

/

GB5310

20G

410～550

≥245

≥24

≥35

/

GB/T8162

10

335

185～205

24

20

390

225～245

20

35

510

285～305

17

45

590

315～335

14

Q345

490

305～325

21

GB/T8163

10

335～475

195～205

24

20

410～550

235～245

20

Q295

430～610

285～295

22

Q345

490～665

315～325

21

ASME SA106

SA106B

≥415

≥240

≥22

≥35

/

SA106C

≥485

≥275

≥20

≥35

/

ASTM A106

A106 Gr.A

≥330

≥205

35 縱向

25 橫向

A106 Gr.B

≥415

≥240

30 縱向

16.5 橫向

A106 Gr.C

≥485

≥275

30 縱向

16.5 橫向

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

GB3087

10

0.07～0.13

0.17～0.37

0.38～0.65

≤0.030

≤0.030

0.3～0.65

/

≤0.25

≤0.30

/

20

0.17～0.23

0.17～0.37

0.38～0.65

≤0.030

≤0.030

0.3～0.65

/

≤0.25

≤0.30

/

GB5310

20G

0.17～0.24

0.17～0.37

0.35～0.65

≤0.030

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

ASME SA106

SA106B

0.17～0.25

≥0.1

0.70～1.00

≤0.030

≤0.030

≤0.035

ASTM A106

A106 Gr.A

≤0.25

≤0.10

0.27～0.93

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

A106 Gr.B

≤0.30

≤0.10

0.29～1.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

A106 Gr.C

≤0.35

≤0.10

0.29～1.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0

.08