09/30199785 DC : 0

Foreword
Section 1. General requirements
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Information to be supplied by the purchaser
6 Manufacture
7 Heat treatment
8 Chemical composition
9 Product analysis and permitted variations
10 Temporary identification up to the cast approval stage
11 Surface dressing
12 Surface inspection
13 Freedom from defects
14 Sulfur printing and deep etching tests
15 Lead segregation
16 Cleanness
17 Ultrasonic examination
18 Testing
19 Condition of supply
20 Dimensional tolerances
21 Maintenance of identity
22 Final marking
23 Certification
Section 2. Bar for machining delivered in other than the
           final heat-treated condition (for parts to be
           heat treated after machining)
24 General
25 Selection and preparation of mechanical test samples
26 Mechanical tests
27 Hardness test
Section 3. Bar and rod for machining delivered in the
           final heat-treated condition, including austenitic
           corrosion resisting steels
28 General
29 Selection and preparation of mechanical test samples
30 Mechanical tests
31 Hardness test
Section 4. Carbon steel bar and rod for machining, not
           subject to hardening and tempering
32 General
33 Selection and preparation of mechanical test samples
34 Mechanical tests
Section 5. Forging stock and billet and bar for subsequent
           hot working
35 General
36 Selection and preparation of mechanical test samples
37 Mechanical tests
38 Hardness test
39 Surface inspection of forging stock
Section 6. Forgings
40 General
41 Manufacture
42 Pre-production forgings
43 Production forgings
44 Procedure X for process control testing
45 Selection and preparation of mechanical test samples for
   batch release testing
46 Mechanical tests
47 Hardness test
Section 7. Parts finally heat treated after machining
48 General
49 Parts for normalizing, hardening and tempering, or softening
50 Parts for carburizing
51 Parts for nitriding
52 Parts for precipitation hardening
Section 8. Bar and rod for the manufacture of forged bolts and
           forged nuts only
53 General
54 Manufacture
55 Hardening test
56 Tensile and hardness tests
57 Freedom from carburization and decarburization
58 Freedom from surface defects
59 Non-destructive testing
Section 9. Spring steel rod and wire for springs
60 General
61 Rod for wire drawing
62 Wire for the manufacture of springs
63 Springs manufactured from wire
Annexes
Annex A (normative) - Rules for application of values for
        chemical composition and mechanical properties
        given in material specifications
Annex B (normative) - Cleanness examination procedure
Annex C (normative) - Ultrasonic examination procedure
Annex D (normative) - Inspection and testing requirements
        for springs

BS 6S 100