Precision seamless steel tubes for manufacturing auto component

Brand:aa

Product detail:

Precision seamless steel tubes for manufacturing auto component

 

Hi,this is maria,thanks very much for your interesting to our products,If you want such steel tubes and pipes,or the standard is not listed above,pls do not hesitate to contact me at once.pls tell me,it's my honor to service you!

Tel:+86-18921988727

 

Zhangjiagang Huadian Import & Export Co., Ltd is a company based in China, we have two factories, one factory manufactures steel tubes and the other factory produces power station equipment.

Jiangsu Dehai Group (Parent Company)
Zhangjiagang Huadian Im &Ex Co., Ltd (Subsidiary)
Zhangjiagang Huagang IndustrialCo.,Ltd (Factory)	Specializes in the production of cold-drawn/cold-rolled precision seamless steel tubes,such as bright oil tubes etc.
Zhangjiagang Huadian Power  Equipment Co.,Ltd (Factory)	A manufacturer of power station boiler, industrial boiler,  waste heat boiler, refusefired boiler, biomass boiler  and the correlated pressure parts integrating the design,  manufacture, installation, repair and maintance

 

Precision automotive and mechanical tubes are supplied under conditions according to DIN2391/EN10305/ASTM A519  in various grades mentioned overleaf. Precision automotive tubes can be supplied in lower tolerance than mentioned above.

Huadian is providing tubes that are free from scale, rust, seams, laps. Tubes can be pickled, passivated, phosphated, zinc-plated, oiled or varnished for rust prevention and long storage. They are stenciled at the ends and end capped.

 

Features 

inner and outer walls of tube have high accuracy, excellent brightness, no oxidization after heat treatment, and high cleanness inside tube. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized. Color of tube: bright white.used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.

 

Grade and Chemical Composition(%)

Grade	Chemical Composition(%):
	C max	Si max	Mn	P max	S max
St 35	0.17	0.35	≥0.40	0.025	0.025
St 45	0.21	0.35	≥0.40	0.025	0.025
St 52	0.22	0.55	≤1.60	0.025	0.025

Steel grade		Chemical Composition(%):
Steel name	Steel number	C max	Si max	Mn	P max	S max	Al min
E215	1.0212	0.10	0.05	0.70	0.025	0.025	0.025
E235	1.0308	0.17	0.35	1.20	0.025	0.025	-
E355	1.0580	0.22	0.55	1.60	0.025	0.025	-

 

 

Steel grade	BK		BKW		BKS			GBK		NBK
	RmN/mm min	min	RmN/mm min	min	N/mm min	ReH N/mm min	min	N/mm min	min	N/mm min	ReH N/mm min	min
St35	480	6	420	10	420	315	14	315	25	340-470	235	25
St45	580	5	520	8	520	375	12	390	21	440-570	235	21
St52	640	4	580	7	580	420	10	490	22	490-630	355	22

 

Steel grade		Minimum values for the delivery condition
Steel name	Steel   number	+ C		+ LC		+ SR			+ A		+ N
		Rm Mpa	A%	Rm  Mpa	A%	Rm   Mpa	ReH   Mpa	A%	ReH Mpa	A%	Rm  Mpa	ReH   Mpa	A%
E215	1.0212	430	8	380	12	380	280	16	280	30	290-430	215	30
E235	1.0308	480	6	420	10	420	350	16	315	25	340-480	235	25
E355	1.0580	640	4	580	7	580	450	10	450	22	490-630	355