ASTM A320 Grade B8LN Stud Bolts
1.4311, 304LN, S30451, X2CRNIN18-10
ASTM A320 Grade B8LN Bolts are manufactured from 304 Stainless Steel in accordance with ASTM A320 specification. Torqbolt is a prominent A320 gr B8LN bolt supplier in India.
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ASTM A320 Grade B8LN Stud Bolts Properties
ASTM A320 Grade B8LN Stud Bolts Chemical Requirements
Austenitic Steels
| Grade Symbol | UNS Designation | C, max | Mn, max | P, max | S, max | Si, max | Ni | Cr | Mo | Se | Ti | N | Nb E + Ta | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A320 B8LN | S 30453 | Range,% | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-11 | 18.0-20.0 | ... | ... | ... | 0.10-0.16 | ... |
| Product Variation, % Over or Under | 0.005 over | 0.04 over | 0.010 over | 0.005 over | 0.05 over | 0.15 | 0.20 | ... | ... | ... | 0.01 | ... | ||
ASTM A320 Grade B8LN Stud Bolts Mechanical Requirements
Austenitic Steels
| Grade and Class | Diameter, in. [mm] | Heat Treatment | Minimum Tempering Temperature, °F [°C] | Tensile Strength, min, ksi [MPa] | Yield Strength, min, ksi [MPa] (0.2 % offset) | Elongation in 2 in. or 50 mm, min, % | Reduction of Area, min, % | Hardness, max |
|---|---|---|---|---|---|---|---|---|
| ASTM A320 B8LN : Class 1 | All diameters | carbide solution treated | ... | 75 [515] | 30 [205] | 30 | 50 | 223 HBWDor 96 HRB |