1. Scope
2. References
3. Materials
3.1 Structural steels
3.1.1 Structural steels complying with the
requirements of BS 4360
3.1.2 Structural steels complying with the
requirements of other specifications
3.1.3 Notch toughness
3.1.4 Laminar defects
3.1.5 Marking
3.1.6 Manufacturer's certificate
3.1.7 Minimum thickness of plates
3.1.8 Hot rolled sections
3.2 Rivet steels
3.3 Steel for shear connectors
3.4 Bolts, nuts and washers
3.4.1 Structural steel bolts and nuts
3.4.2 Plain and taper washers
3.4.3 High strength friction grip bolts, nuts and
washers
3.5 Welding consumables
3.6 Rolled steel pins
3.7 Steel castings and cast steel pins
3.8 Steel forgings and forged steel pins
3.9 Stainless steel
3.10 Cast iron
3.10.1 Grey cast iron
3.10.2 Malleable cast iron
3.10.3 Spheroidal or nodular cast iron
4. Workmanship
4.1 Interchangeability of parts
4.2 Fabrication tolerances
4.2.1 General
4.2.2 Rolled and built-up sections
4.2.3 Flatness of machined bearing surface
4.2.4 Alignment at splices and butt joints
4.3 Preparation of edges, ends and surfaces
4.3.1 Edges
4.3.2 Ends
4.3.3 Flame cutting and shearing
4.3.4 Machining at butted joints
4.3.5 Treatment of outside arises
4.3.6 Contact surfaces for high strength friction
grip bolted connections
4.4 Bolts, nuts and washers
4.4.1 Black bolts
4.4.2 Countersunk bolts
4.4.3 Close tolerance bolts
4.4.4 Turned barrel bolts
4.4.5 High strength friction grip bolts, nuts and
washers
4.4.6 Washers
4.5 Holes for rivets and bolts
4.5.1 Holes for rivets, countersunk bolts and black
bolts (excluding close tolerance and turned
barrel bolts)
4.5.2 Holes for close tolerance bolts and turned
barrel bolts
4.5.3 Holes for high strength friction grip bolts
4.6 Rivets and riveting
4.7 Welding
4.7.1 Welding of structural steels
4.7.2 Welding of steel castings
4.7.3 Welding, flame cutting and shearing procedure
trials
4.7.4. Stud shear connectors: welding and procedure
trials
4.8 Bending and pressing
4.9 Straightening and flattening
4.10 Forging
4.11 Tie rods
4.12 Parallel barrel drifts
4.13 Pins and pin holes
4.14 Camber
4.15 Marking for erection
4.16 Rectification of surface defects and edge
laminations
5. Inspection and testing
5.1 General
5.2 Testing of structural steel
5.2.1 General
5.2.2 Quality grading
5.3 Surface defects and edge laminations
5.4 Procedure trials
5.4.1 Testing of welding for structural steels
5.4.2 Testing of welding for cast steel
5.4.3 Testing of flame cut and sheared edges
5.4.4 Stud shear connectors
5.5 Production tests
5.5.1 Destructive testing of welding for structural
steel
5.5.2 Non-destructive testing of welding for
structural steel
5.5.3 Testing of welding for cast steel
5.5.4 Stud shear connectors
5.6 Checking of deviations in rolled and built-up
sections
5.6.1 Checking requirements
5.6.2 Support during inspection
5.6.3 Equipment
5.6.4 Gauge length
5.6.5 Checking stages
5.6.6 Non-compliance and rejection
5.7 Checking of alignment at joints
5.8 Inspection and testing of rivets
5.9 Temporary erection at contractor's works
6. Handling, transport and erection
6.1 Handling and stacking
6.2 Packing for transport
6.3 Erection
6.3.1 General
6.3.2 Site connections
6.3.3 Service bolts
6.3.4 Drifts
7. Supply, measurement and weighing
7.1 Computed weights
7.2 Weighbridge weights
7.3 Numbers of site rivets, bolts and nuts and service
bolts
Appendix
A. Steel rivets
Tables
1. Performance requirements for structural steels
2. Requirements for high strength friction grip bolts
3. Heat affected zone test requirements for notch
ductility in transverse butt welds
4. Tolerance checking requirements
5. Tolerances
Figures
1. Rivet bend test
2. Rivet flattening test
3. Test specimens for Charpy V-notch impact tests,
T-butt weld, showing reorientation of plate
4. Test specimens for Charpy V-notch impact tests,
corner butt weld, showing reorientation of plate
5. Test specimens for Charpy V-notch impact tests in
the fusion boundary region of the HAZ, showing
reorientation of plate
Guidance clauses
3. Materials
4. Workmanship
5. Inspection and testing
Clauses requiring the attention of the Engineer