Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts
Composition, % | Element | ||||
---|---|---|---|---|---|
C, max | Mn | P, max | S, max | Si | |
ASTM A266 Grades 1 and 2 | 0.30 | 0.40-1.05 | 0.025 | 0.025 | 0.15-0.35 |
ASTM A266 Grade 3 | 0.35 | 0.80-1.35 | 0.025 | 0.025 | 0.15-0.35 |
ASTM A266 Grade 4 | 0.30 | 0.80-1.35 | 0.025 | 0.025 | 0.15-0.35 |
Grade | ASTM A266 Grade 1 | ASTM A266 Grades 2 and 4 | ASTM A266 Grade 3 |
---|---|---|---|
Tensile strength, min, ksi [MPa] | 60-85 [415-585] | 70-95 [485-655] | 75-100 [515-690] |
Yield strength (0.2 % offset), min, ksi [MPa] | 30 [205] | 36 [250] | 37.5 [260] |
Elongation in 2 in. or 50 mm, min, % | 23 | 20 | 19 |
Reduction of area, min, % | 38 | 33 | 30 |
S1 | Rough Turning and Boring |
---|---|
S2 | Alternative Tension Test Orientation |
S3 | Hydrostatic Test |
S4 | Magnetic Particle Examination |
S5 | Liquid Penetrant Examination |
S6 | Macroetch Test |
S7 | Product Analysis |
S8 | Specimen Location on Forged Hubs |
S9 | Hardness |
S10 | Grain Size |
S11 | Restriction on Residual Elements (Applicable to Heat Analysis) |
S12 | Restriction on Carbon (Applicable to Grade I) |
S13 | Impact Tests |
S14 | Individual Forging |
S15 | Carbon Equivalancy |