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Alloy Seamless Steel Tube/Pipe

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4140 Steel Pipe

Detailed Parameters

Implementation standards:

GB5310 (2008) - seamless steel tube for high pressure boiler (GB)

ASTM A333 (2004) - low temperature with seamless steel tube (American Standard)

ASTM A335 (2006) - high temperature for Seamless Ferritic Alloy steel pipe (American Standard)

DIN17175 - heat resistant seamless steel pipe (German standard)

EN10216-2 - European Pressure Piping standard use


Chemical Composition

Standard

Grade

Chemical Composition(%)

C

Si

Mn

P

S

Cr

Mo

GB5310

20MnG

0.17~0.23

0.17~0.37

0.70~1.00

≤0.025

≤0.015

≤0.25

≤0.15

25MnG

0.23~0.27

0.17~0.37

0.70~1.00

≤0.025

≤0.015

≤0.25

≤0.15

15CrMoG

0.12~0.18

0.17~0.37

0.40~0.70

≤0.025

≤0.015

0.80~1.10

0.40~0.55

12Cr2MoG

0.08~0.15

≤0.50

0.40~0.60

≤0.025

≤0.015

2.00~2.50

0.90~1.13

12Cr1MoVG

0.08~0.15

0.17~0.37

0.40~0.70

≤0.025

≤0.010

0.90~1.20

0.25~0.35

10Cr9Mo1VNbN

0.08~0.12

0.20~0.50

0.30~0.60

≤0.020

≤0.010

8.00~9.50

0.85~1.05

ASTM A335

P11

0.05~0.15

0.50~1.0

0.30~0.60

≤0.030

≤0.030

1.00~1.50

0.50~1.00

 P12

0.05~0.15

≤0.50

0.30~0.61

≤0.030

≤0.030

0.80~1.25

0.44~0.65

 P22

0.05~0.15

≤0.50

0.30~0.60 

≤0.030

≤0.030

1.90~2.60

0.87~1.13

 P5

≤0.15

≤0.50

0.30~0.60

≤0.030

≤0.030

4.00/6.00

0.45/0.65

 P91

0.08~0.12

0.20~0.50

0.30~0.60

≤0.020

≤0.010

8.00~9.50

0.85~1.05

P92

0.07~0.13

≤0.50

0.30~0.60

≤0.020

≤0.010

8.50~9.50

0.30~0.60

DIN 17175

ST45.8

≤0.21

0.10~0.35

0.40~1.20

≤0.040

≤0.040

 

 

15Mo3

0.12~0.20

0.10~0.35

0.40~0.80

≤0.035

≤0.035

 

0.25~0.35

13CrMo44

0.10~0.18

0.10~0.35

0.40~0.70

≤0.035

≤0.035

0.70~1.10

0.45~0.65

10CrMo910

0.08~0.15

≤0.50

0.40~0.70

≤0.035

≤0.035

2.00~2.50

0.90~1.20

EN1021 6-2

15NiCuMoNb5-6-4   (WB36)

≤0.17

0.25~0.50

0.80~1.20

≤0.025

≤0.020

≤0.30

0.25~0.50

Standard

Grade

Chemical Composition(%)

Cu

Ni

V

Alt

W

Nb

N

GB5310

20MnG

≤0.20

≤0.25

≤0.08

 

 

 

 

25MnG

≤0.20

≤0.25

≤0.08

 

 

 

 

15CrMoG

≤0.20

≤0.30

 

 

 

 

 

12Cr2MoG

≤0.20

≤0.30

 

 

 

 

 

12Cr1MoVG

≤0.20

≤0.30

0.15~0.30

 

 

 

 

10Cr9Mo1VNbN

≤0.20

≤0.40

0.18~0.25

≤0.020

 

0.06~0.10

0.03~0.07

ASTM A335

P11

 

 

 

 

 

 

 

 P12

 

 

 

 

 

 

 

 P22

 

 

 

 

 

 

 

 P5

 

 

 

 

 

 

 

 P91

 

≤0.40

0.18~0.25

≤0.015

 

0.06~0.10

0.03~0.07

P92

B0.001 0.006

≤0.40

0.15~0.25

≤0.015

1.50~2.00

0.04~0.09

0.03~0.07

DIN 17175

ST45.8

 

 

 

 

 

 

 

15Mo3

 

 

 

 

 

 

 

13CrMo44

 

 

 

 

 

 

 

10CrMo910

 

 

 

 

 

 

 

EN1021 6-2

15NiCuMoNb5-6-4   (WB36)

0.50~0.80

1.00~1.30

 

≤0.05

 

0.015~0.045



Mechanical Property

Standard

Grade

Tensile Strength(MPa)

Yield Strength(MPa)

Elongation(%)

Impact work(J)

Hardness

GB5310

20MnG

≥415

≥240

≥22

≥35

 

25MnG

≥485

≥275

≥20

≥35

 

15CrMoG

440~640

≥235

≥21

≥35

 

12Cr2MoG

450~600

≥280

≥20

≥35

 

12Cr1MoVG

470~640

≥255

≥21

≥35

 

10Cr9Mo1VNbN

≥585

≥415

≥20

≥35

 

ASTM A333

A333 Gr1

≥380

≥205

≥28

-45℃ ≥18 

 

A333 Gr6

≥415

≥240

≥22

-45℃ ≥18 

 

ASTM A335

 P11

≥415

≥205

≥22

≥35

≤163HB

 P12

≥415

≥220

≥22

≥35

≤163HB

P22

≥415

≥205

≥22

≥35

≤163HB

P5

≥415

≥205

≥22

≥35

≤187HB

 P91

585~760

≥415

≥20

≥35

≤250HB

P92

≥620

≥440

≥20

≥35

250HB

DIN17175

ST45.8/Ⅲ

410~530

≥255

≥21

≥27(DVM)

 

15Mo3

450~600

≥270

≥22

≥34(DVM)

 

13CrMo44

440~590

≥290

≥22

≥34(DVM)

 

10CrMo910

480~630

≥280

≥20

≥34(DVM)

 

EN10216-2

15NiCuMoNb5-6-4   (WB36)

610~780

≥440

≥19

≥40


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