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Precision Round Seamless 30mm Steel Tubes / Hot Finished Welded Type Tubes

Minimum Order Quantity : 5 tons Price : USD 600-1200 TON
Packaging Details : oil antirust In hexagonal bundles Delivery Time : 5-8weeks
Supply Ability : 60000 tons annual
Place of Origin: China Brand Name: TORICH
Certification: ISO 9001-2008 EN 10204.3.1 TS 16949 ISO 14001 DNV LR NK Model Number: BS6323-2

Detail Information

Material: Carbon Steel Steel Grade: HFW 2, HFW 3, HFW 4, HFW 5
Size: 6-508mm *1-15mm *max12000mm Shape: Round
Standard: BS6323-2 Applications: For Auto Industry / For Machinery Use/Mechanical And General Engineering Purposes
Production Method: Seamless And Welded Hot Finished Characteristic: Precision
High Light:

welding steel tubing

,

electric resistance welded steel tube

Product Description

Standard: BS6323-2   Seamless and welded steel tubes for Automobile, Mechanical and General Engineering purposes  

                                 
Part 2: Specific Requirements for Hot Finished Welded Steel Tubes    

                                
Applications: for Auto industry / for machinery use/mechanical and general engineering purposes                         

           
Size range: O.D.:6-350mm     W.T.:1-30mm      L:max12000mm                                    
 

Design
ation

Chemical Compositions( ladle analysis)    

Mechanical 
properties

Cmax.

Simax.

Mnmax.

Pmax.

Smax.

Remin.

Rmmin.

Amin.

%

%

%

%

%

N/mm2

N/mm2

%

HFW 2

0.16a

~

0.70

0.050

0.050

195

320

25

HFW 3

0.20a

0.35

0.90

0.050

0.050

215

360

24

HFW 4

0.25

0.35

1.20

0.050

0.050

235

410

22

HFW 5b

0.23

0.35

1.50

0.050

0.050

340

490

20

NOTE  Welding of tubes of these grades does not require special techniques but 
care should be taken and welding should be carried out in accordance with the 
guidance given in the appropriate British Standard for welding,e.g. BS 5135.
aIf rimming or semi-killed steel is used for grade 2,the carbon content may be 
increased to 0.19%,and if used for grade 3,to 0.23%.bGrain refining elements 
may be added to this grade at the option of the manufacturer.

 

Dimensions of hot finished welded steel tubes

Outside 
diameter

Designation HFW 2 and 3

Designation HFW 4 and 5

Thicknesses

Thicknesses

mm

mm

mm

mm

mm

mm

mm

21.3

2.0

2.6

3.2

3.2

 

 

26.9

2.3

2.6

3.2

3.2

 

 

33.7

2.6

3.2

4.0

2.6

3.2

4.0

42.4

2.6

3.2

4.0

2.6

3.2

4.0

48.3

2.9

3.2

4.0

3.2

4.0

5.0

60.3

2.9

3.6

4.5

3.2

4.0

5.0

76.1

3.2

3.6

4.5

3.2

4.0

5.0

88.9

3.2

4.0

5.0

3.2

4.0

5.0

114.3

3.6

4.5

5.4

3.6

5.0

6.3

139.7

6.3

6.3

NOTE For sectional properties including mass per unit length,see appendix B of BS 6323-1:1982

 

Distance between platens for flattening test

Designation

Distance between platens

 

%

HFW 2

75

HFW 3

85

HFW 4

85

HFW 5

85

 


Precision Round Seamless 30mm Steel Tubes / Hot Finished Welded Type Tubes 0 Precision Round Seamless 30mm Steel Tubes / Hot Finished Welded Type Tubes 1

 

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