DOM Mandrel drawn steel tube for Auto industry E355 EN10305-2 manufacturer from China Torich International Co.,Ltd.

DOM Mandrel drawn steel tube for Auto industry E355

Payment Terms:	T/T,L/C
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: EN10305-2

Packing: IN bundles /wooden boxes

Production method: Cold drawn on welded tubes

Grade: ST37.2, ST44, ST52.3

Production Capacity: 3000tons

Delivery Date: 30-70days

Type: DOM on ERW tubes

Application: Shock absorber, Auto parts

Steel tubes for precision applications-Technical delivery conditions.
Welded cold drawn tubes
Size range: O.D.:6-328mm W.T.:1-30mm L:max120

Standard: EN10305-2
Steel tubes for precision applications-Technical delivery conditions.Welded cold drawn tubes
Applications: for Auto industry/for machinery use/Oil Cylinder Tube/Motorcyle shock absorber
Auto shock absorber innder cylinder, Ready for honing/skiving/roller burnishing production
Size range: O.D.:6-328mm W.T.:1-30mm L:max12000mm
Steel Grade and Chemical Compositions:
Steel Grade		C	Si	Mn	P	S
Steel name	Steel number	max	max	max	max	max
E155	1.0033	0.11	0.35	0.70	0.03	0.025
E195	1.0034	0.15	0.35	0.70	0.03	0.025
E235	1.0308	0.17	0.35	1.20	0.03	0.025
E275	1.0225	0.21	0.35	1.40	0.03	0.025
E355	1.0580	0.22	0.35	1.60	0.03	0.025
Mechanical properties at room temperature
Steel grade		Minimum values for the delivery condition^{a b}
Steel name		(+C^c)		(+LC^c)		(+SR)			(+A^d)		(+N)
Steel name		Rm Mpa	A %	Rm Mpa	A %	Rm Mpa	ReH Mpa	A %	Rm Mpa	A %	Rm Mpa	ReH^e Mpa	A %
E155	1.0033	400	6	350	10	350	245	18	260	28	270 to 410	155	28
E195	1.0034	420	6	370	10	370	260	18	290	28	300 to 440	195	28
E235	1.0308	490	6	440	10	440	325	14	315	25	340 to 480	235	25
E275	1.0225	560	5	510	8	510	375	12	390	21	410 to 550	275	21
E355	1.0580	640	4	590	6	590	435	10	450	22	490 to 630	355	22
^aRm: tensile strength; ReH: upper yield strength; A: elongation after fracture
^b 1Mpa=1N/mm²
^c Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
^d For calclulation purposes the following relation is recommended:ReH≥0.5Rm
^e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimim values are 10Mpa lower than the values given in this Table
Note: Special steel grade is also available, according to customer request.

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DOM Mandrel drawn steel tube for Auto industry E355

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