Seamless steel tubes in small calibers for high(low and medium) Pressure boilers and petro chemical industry, Seamless pipes

Seamless steel tubes in small calibers for high(low and medium) Pressure boilers and petro chemical industry

Main Steel Pipe Model

10, 20, 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213 T92, ST45.8/Ⅲ, 15Mo3, 13CrMo44, 10CrMo910etc.

Standard Size

GB3087 Chinese national standard
GB5310 Chinese national standard
ASME SA210 Boiler and pressure vessel code of ASME
ASME SA213 Boiler and pressure vessel code of ASME
DINl7175 Deutsches industrial standard~

Diamensional tolerances:

Types of steel tubes	Outer diameters		Wall thickness
Cold-rolled tubes	Tube sizes(mm)	Tolerances(mm)	Tube sizes (mm)	Tolerances(mm)
Cold-rolled tubes	>30～50	±0.3	>3～20	±10％

Application

Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5．88Mpa and operating temperature below 450 ^oC), as the pipes on the heated sides of high·pressure boilers, economizers, overheaters, reheaters and pipes for petrochemical industry(with the operating pressure above 9．8Mpa and operating temperature ranging between 450C-650C1

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Tel: +8621-33780199

Note:
This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.

Mechanical properties:

Standard codes	Models of steel tubes	Tensite strength（MPa）	Yield strength（MPa）	Elongation（％）	Hardness
GB3087	10	335～475	≥195	≥24	/
GB3087	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
ASME SA210	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	/

Chemical composition:

Standard codes

Models of steel tubes

Chemical compositions (%)

GB3087

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

GB5310

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

≤0.015

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