2.4952, 218, S21800
ASTM A193 Grade B8S Bolts are manufactured from Nitronic 60 in accordance with ASTM A193 specification. Torqbolt is a prominent A193 gr B8S bolt supplier in India.
Astm A193 Grade B8S Stud Bolts Astm A193 Grade B8Sa Stud Bolts Astm A194 Grade 8S Heavy Hex Nuts Astm A194 Grade 8Sa Nuts
Grade | Description and UNS Designatio | Classes | C | Mn | P | S | Si | Cr | Ni | Mo | Cu | CbF | Ti | V | N |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ASTM A193 Grade B8S | S21800 | 1C, 1D | 0.10 | 7.0-9.0 | 0.060 | 0.030 | 3.5-4.5 | 16.0-18.0 | 8.0-9.0 | . . . | . . . | . . . | . . . | . . . | 0.08-0.18 |
Product Analysis VariationB | 0.01 | 0.06 | 0.005 | 0.005 | 0.15 | 0.20 | 0.10 | . . . | . . . | . . . | . . . | . . . | 0.01 |
Grade | Diameter, in. |
Heat TreatmentB | Tensile Strength, min, ksi |
Yield Strength, min, 0.2 % offset, ks |
Elongation in 4 D,min | Reduction of Area, min | Hardness, max |
---|---|---|---|---|---|---|---|
ASTM A193 Grade B8S Classes 1C and 1D | All diameters | carbide solution treated | 95 | 50 | 35 | 55 | 271 HBW or 28 HRC |
Grade Class , mm |
Diameter | Heat TreatmentB | Tensile Strength, min,MPa |
Yield Strength, min, 0.2 % offset, MPa |
Elongation in 4 D,min % | Reduction of Area, min % | Hardness, max |
---|---|---|---|---|---|---|---|
ASTM A193M Grade B8S All diameters Classes 1C and 1D | All diameters | carbide solution treated | 655 | 345 | 35 | 55 | 271 HBW or 28 HRC |