Seamless pipes Specifications and Execution Standard

We can makes and markets cold-drawn and hot rolled seamless steel pipes and cold-drawn special-section seamless pipes which are widely applied in the industries of petrochemical, boiler, automobile, mechanical, construction.

Available Specification as below:

API SPEC 5CT

Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
Casting	API 5CT	114~219 x 5.2~22.2	J55, K55, N80, L80, P110
Tubing	API 5CT	48.3~114.3 x 3.2~16	J55, K55, N80, L80, H40

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API SPEC 5L

This Standard specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
Casting	API 5L	10.3~1200 x1.0~120	A, B, X42, X46, X52, X60, X70, X80, PSL1 / PSL2

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ASTM / ASME

American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
Black and Hot-dipped Zinc-coated Steel Pipes Seamless	ASTM A53	0.3~1200 x 1.0~150	GR.A, GR.B, GR.C
Seamless Carbon Steel for High Temperature Service	ASTM A106	10.3~1200 x 1.0~150	GR.B, GR.C
Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes	ASTM A179	10.3~426 x 1.0~36	Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressure	ASTM A192	10.3~426 x 1.0~36	Low Carbon Steel
Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes	ASTM A199	10.3~426 x 1.0~36	T5, T22
Seamless Medium-carbon Steel Boiler and Superheater Tubes	ASTM A210	10.3~426 x 1.0~36	A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes	ASTM A213	10.3~426 x 1.0~36	T5, T9, T11, T12, T22, T91
Seamless Carbon and Alloy Steel for Mechanical Tubing	ASTM A333	1/4″~42″ x SCH20~XXS	Gr1, Gr3, Gr6
Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use	ASTM A334	1/4″~4″ x SCH20~SCH80	Gr1, Gr6
Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes	ASTM A556	10.3~426 x 1.0~36	A2, B2

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GS/ DIN

Germany Safety(GS), Deutsches Institut für Normung(DIN)

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
Seamless Steel Tubes for Elevated Temperature	DIN 17175	10~762 x 1.0~120	St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
Seamless Steel Tubes	DIN 1629	13.5~762 x 1.8~120	St37.0, St44.0, St52.0
Seamless Precision Steel Tube	DIN 2391	4.0~60.0 x 0.5~8	St35, St45, St52
Seamless Steel Tubes	DIN 2440	13.5~165.1 x 1.8~4.85	St33.2

Alloy Steel Seamless Pipes

Alloy Steel Seamless Pipes, Alloy Steel Seamless tubes, Alloy Steel Seamless Pipe, Alloy Steel Seamless tube,  Alloy Seamless Pipes, Alloy Seamless tubes

SunnySteel is a merchant exporter and supplier of Alloy Steel Seamless Pipes, Alloy Steel Seamless tubes used for many different purposes.

We are specialized in offering precision engineered alloy steels, which are used in various engineering applications and can be availed in various grades like.

CD Cold Drawn Seamless
CFS Cold Finished Seamless
HFS Hot Finished Seamless
CDN Cold Drawn, Condition N
CDA Cold Drawn Annealed
HFHT Hot Finished Heat Treated
CDHT Cold Drawn Heat Treated
DOM Drawn Over Mandrel
CDSR Cold Drawn Stress Relieved
HRA Hor Rolled Annealed

CD	Cold Drawn Seamless	CFS	Cold Finished Seamless	HFS	Hot Finished Seamless
CDN	Cold Drawn, Condition N	CDA	Cold Drawn Annealed	HFHT	Hot Finished Heat Treated
CDHT	Cold Drawn Heat Treated	DOM	Drawn Over Mandrel
CDSR	Cold Drawn Stress Relieved	HRA	Hor Rolled Annealed

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Available Specification

ASTM / ASME

Product Name	Executive Standard	Dimension (mm)	Steel Code / Steel Grade
Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes	ASTM A213	10.3~426 x 1.0~36	T5, T9, T11, T12, T22, T91
Seamless ferritic Alloy Steel Pipes for High Temperature Use	ASTM A335	1/4″~42″ x 2~120mm	P5, P9, P11, P12, P22, P91, P92
Seamless Carbon and Alloy Steel for Mechanical Tubing	ASTM A519	16″~42″ x 10~100mm	4130, 4130X, 4140

EN

Product Name	Executive Standard	Dimension (mm)	Steel Code / Steel Grade
Seamless Ferritic Alloy Steel Pipes for High Temperature Use	EN 10216-2	8″~42″ x 15~100mm	13CrMo4-5, 1-CrMo9-10, X10CrMoVNb9-1, 15NiCuMoNb5-6-4

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

Low medium tubes are used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5．88Mpa)

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)
	>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

Mechanical properties:

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

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

Al

W

Ti

Nb

N

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

20MnG

0.17～0.24

0.17～0.37

0.70～1.00

≤0.030

≤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

≤0.030

≤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

≤0.030

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

12Cr1MoV

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

0.15～0.30

12Cr2MoWVTiB

0.08～0.15

0.45～0.75

0.45～0.65

≤0.030

≤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

≤0.030

SA210C

0.18～0.24

≥0.1

0.80～1.10

≤0.030

≤0.030

ASME SA213

SA213 T11

0.05～0.15

0.50～1.0

0.30～0.60

≤0.030

≤0.030

1.00～1.50

0.50～1.00

SA213 T12

0.05～0.15

≤0.50

0.30～0.61

≤0.030

≤0.030

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

≤0.030

1.90～2.60

0.05～0.30

≤0.030

1.45～1.75

B0.0005～0.006

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

≤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

0.30～0.70

≤0.025

≤0.020

2.00～2.50

0.90～1.10

≤0.30

≤0.30

≤0.015