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Available Specification Standard

API SPEC 5L/ 5CT

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
Casting	API 5L	10.3-1200 x1.0-120	A, B, X42, X46, X52, PSL1 / PSL2
Drill Pipe	API 5DP	Outer diameter: 2 3/8'-51/2' Wall thickness: 6.45mm-12.7mm Length: R1,R2 and R3	E75, X95, G105, S135 .

ASTM / 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, T5b, T9 , T11, T22 ,T91
Seamless Carbon and Alloy Steel for Mechanical Tubing	ASTM A333	1/4"-42" x SCH20-XXS	Grade1 Gr. 3,Gr..6, Gr.8 , Gr. 9
Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes	ASTM A556	10.3-426 x 1.0-36	A2, B2
For seamless ferritic alloy-steel pipe for high-temperature service	ASTM A335	1/4"-42" x SCH20-XXS	A/SA 335 P1, P2, P11, P12, P15, P22, P91, P92, P122

DIN/EN

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 Circular Tubes of Non Alloys Steels with Special Quality Requirements.	DIN 1629	13.5-762 x 1.8-120	St37.0, St44.0, St52.0
Seamless steel tubes for pressure purposes	EN 10216	4.0-60.0 x 0.5-8 5-7 m manufacturing lenght	P235GH TC1, P235GH TC2, 16Mo3
hydraulic and pneumatic power system, low-voltage circuit, power steering, fuel circuit, vibration reduction, and such.	EN 10305	13.5-165.1 x 1.8-4.85	St33.2
specifies the Seamless steel tubes used forMechanical and Automobile.	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

JIS

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
High pressure and high temperature service	JIS G3454/5/6	19.05-114.3 x 2.0-14	JIS G3454(STPG370, STPG410), JIS G3455(STS370, STS410, STS480), JIS G3456(STPT370, STPT410, STPT480)
Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.	JIS G3445	19.05-114.3 x 2.0-14	STKM11A, STKM12(A,B,C), STKM13(A,B,C), STKM14(A,B,C).
Carbon steel/Alloy steel boiler and heat exchanger tubes	JIS G3461,2	19.05-114.3 x 2.0-14	G3461(STB340, STB410, STB510) G3462(STBA22, STBA23)
Seamless steel tubes for high pressure gas cylinder	JIS G3429	19.05-114.3 x 2.0-14 Length: max 16000mm	STH11, STH12, STH21, STH22
Heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes.	JIS G3458	10.5-660.4 mm	STPA 12, STPA 20, STPA 22, STPA 23, STPA 24, STPA 25, STPA 26

GB 国标

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
Used for manufacturing various low and medium pressure boilers.	GB 3087	19.05-114.3 x 2.0-14	10#, 20#
Low-temperature heat exchanger tubes seamless steel pipe	GB/T18984	19.05-351 x 2.0-14	06Ni3MoDG, 09DG, 09Mn2VDG, 10MnDG, 16MnDG
GB 8163 steel pipe is a seamless steel pipe for fluid transportation (GB/T8163-2018)	GB/T 8163	19.05-351 x 2.0-14	10#
High pressure and above pressure steam boiler tubes with high quality carbon structural.	GB5310	19.05-114.3 x 2.0-14	20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG(T12/P12), 12CrMoG, 12Cr2MoWVTiB.