Seamless Cold Finished ERW BS6323-6 DOM Steel Tubes

BS6323-6 DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes

with BK , BKW , GBK , GZF , NBK , NZF

Standard: BS6323-6 Seamless and Welded Steel Tubes for Automobile,Mechanical and General Engineering Purposes

Part 6: Specific requirements for cold finished electric resistance welded(including induction welded) steel tubes

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DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes Detailed Product Description:

Material: Carbon Steel

Steel Grade: CEW1a CEW2a CEW3a CEW4a CEW5a

Standard: BS6323-6

Shape: Round

Dimension: OD6-350mm *WT1-35mm *Lmax12000mm

Applications: For Auto Industry / For Machinery Use/mechanical And General Engineering Purposes

Production Method: Seamless And Welded, Cold Drawn over mandrel and die

DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes Characteristic: Cold Finished Electric Resistance Welded

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

Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm

DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes Manufacture method:

The tubes are manufactured from flat rolled strip, longintudinally welded continuously by the passage of an electric current across the abutting edges without the addition of filler metal.

They are subsequently cold finished normally on both the inside and outside surfaces, where it is permissble to have both an adherent layer of residual lubricant originating from the drawing process

and visible traces of the internal weld upset.

If phosphate or other residues are detrimental to subsequent processing, their removal shall be the subject of an agreement between the manufacturer and purchaser.

DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes Delivery Condition:

The tubes are supplied in one of the following condition:

a. Cold finished/hard (cod finished as drawn) : BK

b. Cold finished/soft (lightly cold worked ): BKW

c. Annealed: GBK

d. Annealed (including de-scaling): GZF

e. Normalized: NBK

f. Normalized ( including de-scaling): NZF

It is permissible for tubes supplied in the GBK and NBK conditions to be discoloured, but they shall be free from loose scale.

Where tubes, in the GBK condition are required bright annealed, this shall be the subject of an agreement between the purchaser and the manufactuer.

Testing for DOM Steel Tubes Cold Finished Electric Resistance Welded Steel Tubes:

Flattening test

Drift expanding test

Leak tightness test.