Mechanical tube_DE XING STEEL CO., LTD.

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Product introduction and standards
Mechanical tube

Standard
GB/T3639 2009 ASTM A519
EN10210 EN10297 DIN2391
JIS G3441 JIS G3445 JIS G3465

Application
Various oil cylinders, mechanical structures and
various mechanical accessories, etc.

Specification
Outer diameter dimensions and material
properties can be determined according to clients' requirement.

Technical Parameters

Steel grade		Minimum value of delivery status a.b
Serial number	Steel grade	Cold fnished (hard) (BK)		Cold finished (sof) (BKW)		Cold finished and' stress-elieved (BKS)			Annealed (GBK)		Normalized(NBK)
Serial number	Steel grade	Rm MPa	A %	Rm MPa	A %	Rm MPa	ReH MPa	A %	Rm MPa	A %	Rm MPa	ReH MPa	A %
1	St35/E235	480	6	420	10	420	315	14	315	25	340~470	235	25
2	SN45	580	5	520	8	520	375	12	390	21	440~570	255	21
3	St52/E355	640	4	580	7	580	450f	10	450	22	490~630	355	22

Steel Grade	Conditin	Tensile Strength		Yield Strength		Elongation, %
Steel Grade	Conditin	ksi	MPa	ksi	MPa	Elongation, %
1020	HR	50	345	32	220	25
	CW	70	485	60	415	5
	SR	65	450	50	345	10
	A	48	330	28	195	30
	N	55	380	34	235	22
1045	HR	75	515	45	310	15
	CW	90	620	80	550	5
	SR	80	550	70	485	8
	A	65	450	35	240	20
	N	75	515	48	330	15
4130	HR	90	620	70	485	20
	SR	105	725	85	585	10
	A	75	515	55	380	30
	N	90	620	60	415	20