BS 1506:1990

Foreword
Committees responsible
Specification
1. Scope
2. Designations
3. Information and requirements to be agreed and to
     be documented
4. General requirements
5. Steelmaking process
6. Chemical composition
7. Mechanical properties
8. Dimensional tolerances
9. Freedom from defects
10. Intercrystalline corrosion test on austenitic
     stainless steels
11. Selection of test samples and preparation of test
     pieces for verification of mechanical properties
12. Tensile, impact and hardness testing
13. Retests
14. Marking
15. Manufacturer's certificate
Appendices
A. Comparisons between the designations for steel
     grades in the 1958 edition of BS 1506 and their
     nearest equivalents in this edition
B. Examples of commercial or contractual clauses
     which the purchaser may wish to include in his order
     or contract
C. Conditions of supply for bars and billets
Tables
1. Chemical composition, heat treatment and mechanical
     properties at room temperature and Charpy impact
     values at sub-zero temperatures for bars of carbon
     low alloy and martensitic stainless steels
2. Chemical composition, heat treatment, mechanical
     properties at room temperature and Charpy impact
     values at sub-zero temperatures and sensitization
     times for bars of austenitic stainless steels and
     a precipitation hardenable stainless steel
3. Permitted variations of product analysis from the
     specified cast analysis for carbon steels and
     alloy (excluding stainless) steels
4. Permitted variations of product analysis from the
     specified cast analysis for martensitic and
     austenitic stainless steels and a precipitation
     hardenable stainless steel
5. Mechanical properties at room temperature for
     austenitic stainless steel bars in the solution
     treated and cold-drawn condition (applicable to
     steel types (303S22, 304S11, 304S31, 316S11,
     316S13, 316S31, 316S33, 321S31 and 347S31)
6. Tolerances for hot rolled round and square bars
     and peeled or rough turned rounds
7. Tolerances for hot rolled hexagonal bars (re-
     rolled material)
8. Tolerances for cold drawn bars
9. Tolerances for turned bars and ground bars
10. Tolerances for precision ground round bars
11. Positions of tensile and impact test pieces to be
     taken longitudinally from bars supplied in all
     steels and material conditions except austenitic
     stainless steels in the solution treated and cold
     drawn condition.
12. Positions of tensile and impact test pieces to be
     taken longitudinally from bars supplied in
     austenitic stainless steels in the solution treated
     and cold drawn condition
13. Comparison between the designations for steel
     published in the 1958 edition of BS 1506 and those
     in the current edition.
14. Conditions of supply for carbon steels, low alloy
     steels and martensitic stainless steels
15. Conditions of supply for austenitic stainless
     steels
16. Conditions of supply for a precipitation hardenable
     stainless steel

Bars of round, square and hexagonal cross-sections and rolled and forged billets intended for the manufacture of bolts, studs and nuts for either sub-zero or elevated temperatures.