Seamless Steel Tubes and Pipes for Boiler GB5310

Categories:

Standard
GB/T5310

Application:
For Manufacture heating-pipelines, containers, coal-saving devices, superheaters and reheaters of high-pressure boilers. (P>9.8Mpa, 450℃< T<℃

Main Steel Tube Grades:
20G、20MnG、15MoG、15CrMoG、12Cr2MoG、12Cr1MoVG。
Other grades can also be provided after consulting with customers.

Mechanical Properties:

Standard

Grade

Tensile Strength

Yield Strength

Elongation

GB5310

20G

410~550

≥245

≥24

20MnG

≥415

≥240

≥22

15MoG

450~600

≥270

≥22

15CrMoG

440~640

≥235

≥21

12Cr2MoG

450~600

≥280

≥20

12Cr1MoVG

470~640

≥255

≥21

Chemical Composition:

Standard

Grades

Chemical Composition

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

GB5310

20G

0.17~0.24

0.17~0.37

0.35~0.65

≤0.030

≤0.030

/

/

≤0.20

≤0.25

/

20MnG

0.17~0.24

0.17~0.37

0.70~1.00

≤0.030

≤0.030

/

/

≤0.20

≤0.25

/

15MoG

0.12~0.18

0.17~0.37

0.40~0.80

≤0.030

≤0.030

/

0.25~0.35

≤0.20

≤0.30

/

15CrMoG

0.12~0.18

0.17~0.37

0.40~0.70

≤0.030

≤0.030

0.80~1.10

0.40~0.55

≤0.20

≤0.30

/

12Cr2MoG

0.08~0.15

≤0.50

0.40~0.70

≤0.030

≤0.030

2.00~2.50

0.90~1.20

≤0.20

≤0.30

/

12Cr1MoVG

0.08~0.15

0.17~0.37

0.40~0.70

≤0.030

≤0.030

0.90~1.20

0.25~0.35

≤0.20

≤0.30

0.15~0.35