Seamless Alloy Steel Tube and Pipe Manufacturer

Seamless Alloy Steel Tube and Pipe

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With relatively high content of Cr, the seamless alloy steel tube and pipe features unmatched properties over other common seamless steel pipes, including resistance to high temperature, low temperature and corrosion. Therefore, alloy steel tubing has found wide applications in petroleum, chemical, power and boiler industries.

Our seamless alloy steel pipes contain a variety of elements such as Si,Mn, Cr, Ni, Mo, W, V, Ti, Nb,Zr, Co, Al, Cu, B, RE, etc.

Materials: 16-50Mn, 27SiMn, 20-40Cr, 12-42CrMo
National Standards: GB/T8162-2008, GB/T8163-2008, GB3087-2008, GB6479-2000, GB9948-2006, GB5310-2008

Seamless Alloy Steel Tube Chemical Properties

Grade

Chemical Compositions (%)

0.07~0.13

0.17~0.37

0.38~0.65

≤0.030

0.3~0.65

≤0.25

≤0.30

0.17~0.23

0.17~0.37

0.38~0.65

≤0.030

0.3~0.65

≤0.25

≤0.30

20G

0.17~0.24

0.17~0.37

0.35~0.65

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

20MnG

0.17~0.24

0.17~0.37

0.70~1.00

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

25MnG

0.18~0.24

0.17~0.37

0.80~1.10

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

15CrMo

0.12~0.18

0.17~0.37

0.40~0.70

≤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

2.00~2.50

0.90~1.20

≤0.20

≤0.30

12Cr1MoV

0.08~0.15

0.17~0.37

0.40~0.70

≤0.030

0.90~1.20

0.25~0.35

≤0.20

≤0.30

0.15~0.30

12Cr2MoWVTiB

0.08~0.15

0.45~0.75

0.45~0.65

≤0.030

1.60~2.10

0.50~0.65

≤0.20

≤0.30

0.28~0.42

0.30~0.55

0.08~0.15

B 0.002~0.008

10Cr9Mo1VNb

0.08~0.12

0.20~0.50

0.30~0.60

≤0.020

≤0.010

8.00~9.50

0.85~1.05

≤0.20

≤0.40

0.18~0.25

≤0.015

0.06~0.10

0.03~0.07

ASME SA210/ SA210A-1

0.13~0.19

≥0.1

0.45~0.65

≤0.030

SA210C

0.18~0.24

≥0.1

0.80~1.10

≤0.030

ASME SA213/ SA213 T11

0.05~0.15

0.50~1.0

0.30~0.60

≤0.030

1.00~1.50

0.50~1.00

SA213 T12

0.05~0.15

≤0.50

0.30~0.61

≤0.030

0.80~1.25

0.44~0.65

SA213 T22

0.05~0.15

≤0.50

0.30~0.60

≤0.030

≤0.010

1.90~2.60

0.87~1.13

SA213 T23

0.04~0.10

≤0.50

0.10~0.60

≤0.030

1.90~2.60

0.05~0.30

≤0.030

1.45~1.75

B 0.0005~0.006

0.02~0.08

≤0.040

SA213 T91

0.08~0.12

0.20~0.50

0.30~0.60

≤0.020

≤0.010

8.00~9.50

0.85~1.05

≤0.40

0.18~0.25

≤0.015

0.06~0.10

0.03~0.07

SA213 T92

0.07~0.13

≤0.50

0.30~0.60

≤0.020

≤0.010

8.50~9.50

0.30~0.60

≤0.40

0.15~0.25

≤0.015

1.50~2.00

B 0.001~0.006

0.04~0.09

0.03~0.07

DIN 17175

ST45.8/ Ⅲ

≤0.21

0.10~0.35

0.40~1.20

≤0.040

15Mo3

0.12~0.20

0.10~0.35

0.40~0.80

≤0.035

0.25~0.35

13CrMo44

0.10~0.18

0.10~0.35

0.40~0.70

≤0.035

0.70~1.10

0.45~0.65

10CrMo910

0.08~0.15

≤0.50

0.30~0.70

≤0.025

≤0.020

2.00~2.50

0.90~1.10

≤0.30

≤0.01

Seamless Alloy Steel Tube Mechanical Properties

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness
10	335~475	≥195	≥24	/
20	410~550	≥245	≥20	/
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	≤143HB
SA210C	≥485	≥275	≥30	≤179HB
ASME SA213	SA213 T11	≥415	≥205	≤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	/