Cold Rolled Seamless Steel Tubing Solutions for Industrial Applications

• Customization: Available
• After-sales Service: Free
• Warranty: Free
• Model NO.: OD 15-75mm
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Machinery Industry, Special Purpose
• Section Shape: Round
• IATF16949: Yes
• Od: 15-70mm
• Thickness: 1-20mm
• Condition: Bright
• Customized: Yes
• Transport Package: Bund
• Trademark: bluesky pipe
• Origin: China
• HS Code: 7304319000
• Production Capacity: 50000 Ton/Year

Product Description

steel grade	+C(BK)		+LC(BKW)		+SR(BKS)			+A(GBK)		+N(NBK)
	Rm(Mpa)	A(%)	Rm(Mpa)	A(%)	Rm(Mpa)	Reh(Mpa)	A(%)	Rm(Mpa)	A(%)	Rm(Mpa)	Reh(Mpa)	A(%)
10	430	8	380	10	400	300	16	335	24	320~450	215	27
20	550	5	520	8	520	375	12	390	21	440~570	255	21
35	590	5	550	7	-	-	-	510	17	≥460	280	21
45	645	4	630	6	-	-	-	590	14	540	340	18
25Mn	650	6	580	8	580	450	10	490	18	-	-	-
Q355B	640	4	580	7	580	450	10	450	22	490~630	355	22
Q420B	750	4	620	8	690	590	12	520	22	550~700	425	22
25CrMo	720	4	670	6	-	-	-	-	-	-	-	-
42CrMo	720	4	670	6	-	-	-	-	-	-	-	-

Size tolerance
OD	Standard tolerance			Special tolerance
Outer Diameter	GB/T3639	DIN2391	EN10305	O D	thickness
4mm-20mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.05mm	±0.05mm
20mm-30mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.08 mm	±0.08 mm
31mm-40mm	±0.15 mm	±0.15 mm	±0.15 mm	±0.10 mm	±0.08 mm
41mm-60mm	±0.20 mm	±0.20 mm	±0.20 mm	±0.15 mm	±0.15 mm
61mm-80mm	±0.30 mm	±0.30 mm	±0.30 mm	±0.20 mm	±0.20 mm
81mm-120mm	±0.45 mm	±0.40 mm	±0.40 mm	±0.30 mm	±0.30 mm

GB		ASTM/ASME		DIN		EN		JIS
GB/T8162	10	A53	A	DIN1629	St37	EN17121	St37-2/3	G3454	STPG370
GB/T8163		A106	A
GB/T3639		A519	1010
	20	A53	B	DIN1629	St44	EN17121	St44-2/3	G3454	STPG410
		A106	B
		A519	1020
	45	A1045			CK45
	Q235	A519	1021			EN10210-1	S235JRH	G3444	STK400
						EN1097-1	E235
	Q345	A519	1524	DIN1629	St52			G3444	STK500
	37Mn5	J55
	35CrMo		4135					G4105	SCM435
	20Cr		5120						SCr420
	40Cr		5140						SCr440
	15CrMo								SCM415
	20CrMo		4119						SCM420
	42CrMo		4150/4142						SCM440
	20CrMnTi								SMK22