BS 2640:1982

Foreword
Cooperating organizations
Specification
Section one. General
1 Scope
2 References
3 Parent metal
4 Filler rods
5 Equipment
6 Welding technique
7 Proximity of welds
8 Fusion faces
9 Assembly for welding
10 Cold pull
11 Heat treatment
12 Inspection
Section two. Butt joints
13 General
14 All types of butt joint
15 Gusseted bends
Section three. Branches
16 General
17 All types of branches
18 Set-on branches
19 Set-in branches
20 Extruded branches
21 Forged fittings
Section four. Sleeve joints and socket-welding fittings
22 General
23 Sleeve joint details
24 Socket joint details
Section five. Structural attachments
25 General
26 Welding procedure
Section six. Flanges
27 General
28 Welding neck flanges
29 Welded-on flanges
Section seven. Inspection requirements
30 Requirements for visual examination of completed
    welds
31 Testing of completed welds
32 Non-destructive testing of butt joints
Section eight. Rectification of faulty welds
33 Removal of faults
34 Preparation for re-welding
35 Re-welding
Section nine. Welding procedure approval
36 General
37 Attachments to thin pipes
Section ten. Welder approval
38 General
39 Branch connections and flange attachments
40 Attachments to thin pipes
Appendices
A Classes of operating conditions
B Items for agreement between the contracting parties
C Welding techniques
Tables
1 Sizing and alignment
2 Drifting of pipe ends
3 Preparation of ends
Figures
1 Thick to thin sections
2 Segmental bends
3 Cut-and-shut bend
4 Curved or 'easy sweep' branch joint
5 Minimum height of flanged branches
6 Details of set-on branches
7 Details of set-in branches
8 Extruded branch
9 Forged fittings for branch joints
10 Sleeve joints
11 Fillet welds for sleeve joints
12 Socket joint
13 Welding neck flange
14 'Slip on' hubbed welded-on flange
15 Partial cut-out in rectification of faulty welds
16 Rightward (or backward) technique
17 Blowpipe and rod angles for all-position rightward
    technique
18 Leftward technique
19 Multi-layer technique. Pipe horizontal
20 Block-welding technique

Welding carbon steel pipe up to 10 mm thick; parent metals, filler rods, preparation for welding, butt joints, branches, attachments, flanges, inspection, acceptance requirements for optional non-destructive testing, welding procedures and welder approval.