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BS6323-7 SAW4,SAW5 Seamless Longitudinal Submerged Arc Welded Pipes

Minimum Order Quantity : 5 Tons Price : 600-1200USD/TON
Packaging Details : In bundles, or upon customer‘s request. Delivery Time : 30-50 days after order confirmed
Supply Ability : 50000 tons annually
Place of Origin: China Brand Name: TORICH
Certification: ISO 9001-2008,ISO 14001,TS16949,EN 10204.3.1 Model Number: BS6323-7

Detail Information

Material: SAW 4 SAW 5A OD: 508-2020mm
WT: 6.3-50mm L: Max12000mm
Applications: For Auto Industry / For Machinery Use
High Light:

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electric resistance welded steel tube

Product Description

Standard: BS6323-7 Seamless and Welded Steel Tubes for Automobile Mchanical and General Engineering Purposes

 


Part 7: Specific Requirements for Submerged Arc Welded Steel Tubes

 

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

 

Size range: O.D.: 508-2020mm     W.T.:6.3-50mm      L:max12000mm              

 

Method of Manufacture:

The tubes are manufactured by longitudinally butt welding preformed steel plate or skelp by an automatic submerged arc welding process   

 

Delivery Condition:

The tubes are supplied in the condition of:

a)  As-welded

b)  Hot sized

c)  Cold sized     

 

                                       Chemical Compositions and Mechanical properties

Designation

    Chemical Compositions( ladle analysis)

    Mechanical properties

    C

Si

  Mn

    P

    S

     Re

   Rm

   A

  max.

  max.

  max.

  max.

  max.

   min.

   min.

  min.

 

%

%

%

%

%

N/mm2

N/mm2

%

SAW 4

0.25

0.35

1.20

0.050

0.050

235

410

22

SAW 5a

0.23

0.50

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.a Grain refining elements may be added to this grade at the option of the manufacturer. 

 

 

                                  Dimensions of submerged arc welded steel tubes

Outside diameter

Thicknesses

Minimum thickness

Thicknesses in common usage

Maximum thickness

mm

mm

mm

mm

mm

mm

mm

508

6.3

8.0

10

12.5

 

20

559

6.3

8.0

10

12.5

 

20

610

6.3

8.0

10

12.5

16

32

660

6.3

8.0

10

12.5

16

32

711

7.1

8.0

10

12.5

16

32

762

7.1

10

12.5

16

 

32

813

7.1

10

12.5

16

20

32

864

7.1

10

12.5

16

20

32

914

8.0

10

12.5

16

20

45

1016

8.0

12.5

16

20

25

50

1220

10

12.5

16

20

25

50

1420

12.5

12.5

16

20

25

50

1620

12.5

16

20

25

 

50

1820

12.5

16

20

25

 

50

2020

12.5

16

20

25

 

50

NOTE  Other outside diameters and thicknesses are available by agreement between purchaser and manufacturer.For sectional properties including mass per unit length,see appendix B of BS 6323-1:1982

Note: Special steel grade is also available, according to customer request.

 

Tests:

Bend tests (strips)

The diameter of the bar shall be size times the thickness of the test pieces.

The test piece shall be show no significant crack or flaw. The opening out of a slight defect due to  incomplete root penetration or lack of root fusion need not be considered a cause for rejection provided the defect has sound metal at the back and on each side of it.

In borderline cases further tests shall be made on test pieces from the same weld adjacent to the original test piece.

 

BS6323-7 SAW4,SAW5 Seamless Longitudinal Submerged Arc Welded Pipes 0

 

BS6323-7 SAW4,SAW5 Seamless Longitudinal Submerged Arc Welded Pipes 1

 

Publications referred to:

 

BS3601,  Steel pipes and tubes for pressure purposes: carbon steel with specified room temperature properties

 

BS 3602,    Specifications for steel pipes and tubes for pressure purposes: carbon and carbon manganese steel with specified elevated temperature properties.

 

BS 3603,    Specification for steel pipes and tubes for pressure purposes: carbon and alloy steel with specified low temperature properties

 

BS3604,      Specification for steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties.

 

BS3605,       Seamless and welded austenitic stainless steel pipes and steel tubes for pressure purposes

 

BS4360,       Specification for weldable structural steels

 

BS4848,       Hot-rolled structural steel sections

 

BS4848-2,    Hollow sections

 

BS5135,       Metal-arc welding of carbon and carbon manganese steels

 

BS6323,       Specification for seamless and welded steel tubes for automobile, mechanical and general engineering purposes

 

BS6323-1,   General requirements

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