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Cold Drawn Seamless Pipe,Cold Drawn pieps DIN 2391/EN 10305

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Cold Drawn Seamless Pipe,Cold Drawn pieps DIN 2391/EN 10305

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1)DIN 2391/EN 10305 seamless steel tube

2)O.D.:6.0-325mm W.T.:1-40mm Lmax 16.5m
3)Grade:St35, St37.4, St45, St52,E235, E255,E355
4)Cold drawn or cold rolled precision seamless steel tubes,inside precision seamless tubes for hydraulic pressure and pneumatic services

Application: For Auto use, machinery use, Oil cylinder tube, Motorcycle shock reducer steel tubes, Auto shock reducer inner cylinder

Grade	Chemical Composition ( % )
Grade	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

Cold Drawn Seamless Mechanical Steel tube and pipe is produced by drawing tube through a die or cold rolling it to give it a more uniform diameter. For this reason Cold Drawn Seamless Mechanical Steel tube is stronger than other types of steel tube.

DIN 2391/EN 10305 Cold Drawn Seamless Pipe

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	-

Mechanical Properties (Mpa):

Steel grade	cold drawing lucency hardness BK		cold drawing lucency hardness BKW		drawing lucency stress free anneal BKS			Anneal GBK		Normalization NBK
Steel grade	Tensile Strength Rm N/mm min	Elongation % min	Tensile Strength Rm N/mm min	Elongation % min	Tensile Strength Rm N/mm min	Yield Strength ReH N/mm min	Elongation % min	Tensile Strength Rm N/mm min	Elongation % min	Tensile Strength Rm N/mm min	Yield Strength ReH N/mm min	Elongation % 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

Cold Drawn Seamless Steel tube and pipe can be used as a finished product or can be machined. It is supplied with complete quality assurance and in full compliance with the Standard EN 10305 grade E235 + C.

Steel grade		Minimum values for the delivery condition
Steel name	Steel number	+ C		+ LC		+ SR			+ A		+ N
Steel name	Steel number	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	22