EN10305-2 Welded Steel Tubes with Precision Cold Drawn Steel Tubes for Mechanical / Automotive Application

 

 

EN10305-2 Welded Precision Cold Drawn Steel Tubes
Applications: for Auto industry/for Machinery use/Oil Cylinder Tube/Motorcyle Shock Absorber                           innder cylinder/Telescopic Cylinders     

 

Quick Detail:                               
Size Range: O.D.:6-350mm     W.T.:1-35mm      L:max12000mm  

Steel Grade: E195, E237, E275, E355,

 

Description:

ERW+ DOM

The tubes are manufactured from eclectric welded pre-tubes by cold drawing or other suitable processes. 

The tubes not include welds used for joining lengths of flat rolled strips prior to forming the pre-tube

 

Description:

Mechanidal tubing made from hot or cold-rolled steel.

Covers electric-resistance-welded low carbon steel tubing for use as mechanical tubing

 

Advantage:

Good concentricity, Better price than seamless.

                                                 

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	0.025	0.025
E195	1.0034	0.15	0.35	0.70	0.025	0.025
E235	1.0308	0.17	0.35	1.20	0.025	0.025
E275	1.0225	0.21	0.35	1.40	0.025	0.025
E355	1.0580	0.22	0.35	1.60	0.025	0.025

 

Mechanical properties at room temperature
Steel Grade		Minimum values for the delivery conditiona b
Steel Name		(+Cc)		(+LCc)		(+SR)			(+Ad)		(+N)
		Rm  Mpa	A %	Rm  Mpa	A %	Rm  Mpa	ReH  Mpa	A %	Rm  Mpa	A %	Rm  Mpa	ReHe  Mpa	A %
E155	1.0033	400	6	350	10	350	245	18	260	28	270-410	155	28
E195	1.0034	420	6	370	10	370	260	18	290	28	300-440	195	28
E235	1.0308	490	6	440	10	440	325	14	315	25	340-480	235	25
E275	1.0225	560	5	510	8	510	375	12	390	21	410-550	275	21
E355	1.0580	640	4	590	6	590	435	10	450	22	490-630	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.

 

Applications:

Auto industry/for Machinery use/Oil Cylinder Tube/Motorcyle Shock Absorber                           

innder cylinder/Telescopic Cylinders

 

Competitive Advantage:

Good source of raw material from Bao Steel.

Prompt delivery time according to PO and agreement.

Produce exactly according to standard and customer's requirement.

Experienced export team for customer service, quick reply within 24 hours.