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BSI BS 1140:1993

Specification for resistance spot welding of uncoated and coated low carbon steel
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BSI BS 1140:1993

Specification for resistance spot welding of uncoated and coated low carbon steel

PUBLISH DATE 1993
PAGES 24
BSI BS 1140:1993

This British Standard specifies procedures for resistance spot welding in the fabrication of assemblies of uncoated and coated low carbon steel comprising two or three thicknesses of metal, where the single sheet thickness of the components to be welded is within the following ranges:

  1. uncoated sheets: 0.4 mm to 3.0 mm (see 5.1);
  2. uncoated plates: 3.0 mm to 12.0 mm (see 5.1);
  3. hot-dip zinc coated sheets: 0.4 mm to 3.0 mm (see 5.2);
  4. hot-dip iron-zinc alloy coated sheets (galvaneal): 0.4 mm to 3.0 mm (see 5.2);
  5. electrolytic zinc coated sheets: 0.4 mm to 3.0 mm (see 5.3);
  6. electrolytic zinc-nickel coated sheets: 0.4 mm to 3.0 mm (see 5.4);
  7. terne coated sheets: 0.4 mm to 3.0 mm (see 5.5);
  8. aluminium coated sheets: 0.4 mm to 3.0 mm (see 5.6);
  9. hot-dip zinc-55 % aluminium coated sheets 0.4 mm to 3.0 mm (see 5.7);
  10. hot-dip zinc-5 % aluminium coated sheets 0.4 mm to 3.0 mm (see 5.8).

Guidance on the choice of appropriate welding equipment and approximate spot welding conditions is given in annexes A and B respectively.

This procedure does not apply to the welding of sheets or plates of dissimilar thickness where the thickness ratio is greater than 3 to 1.

In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

Specifies procedures in the fabrication of assemblies of uncoated and coated low carbon steel comprising two or three thicknesses of metal where the single sheet thickness is within certain given limits.
SDO BSI: British Standards Institution
Document Number 1140
Publication Date May 15, 1993
Language en - English
Page Count 24
Revision Level
Supercedes
Committee WEE/29
Publish Date Document Id Type View
May 15, 1993 BS 1140:1993 Revision
Feb. 1, 1984 BS 1140:1980 Revision
Nov. 26, 1957 BS 1140:1957 Revision
Oct. 31, 1946 BS 1140:1946 Revision
Nov. 1, 1943 BS 1140:1943 Revision