304S31, BS2332, 1.4301, SUS 304, S30400, X5CRNI18-10
ASTM A320 Grade B8 Stud Bolts are manufactured from 304 Stainless Steel in accordance with ASTM A320 specification. Torqbolt is a prominent A320 gr B8 stud bolt supplier in India.
304 Stainless Steel Bolts 304 Stainless Steel Bolts And Nuts Type 304 Stainless Forgings 304 SS Nuts 304 Stainless Steel Screws Type 304 Stainless Springs SS 304 Threaded Rod SS 304 Washers A2 70 Hex Bolts A2 80 Nuts Astm A193 Grade B8 Bolts Astm A193 Grade B8A Studs Astm A194 Grade 8 Nuts Astm A194 Grade 8A Nuts Astm A320 Grade B8 Class 1 Bolts Astm A320 Grade B8A Bolts Astm F594C Stainless Steel Nuts Astm F594D Stainless Steel Nuts Astm F593 Type 304 Screws Astm F593 Type 304 Screws 1.4301 Fasteners
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 B8 | S30400(304) | Range,% | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-11.0 | 18.0 - 20.0 | ... | ... | ... | ... | ... |
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 B8 Class 1 | All diameters | carbide solution treated | ... | 75 [515] | 30 [205] | 30 | 50 | 223 HBWDor 96 HRB |
ASTM A320 B8 Class 2 | 3/4 [20] and under | carbide solution treated and strain hardened | ... | 125 [860] | 100 [690] | 12 | 35 | 321 HBW or 35 HRC |
over 3/4 to 1 [20 to 25], incl | ... | 115 [795] | 80 [550] | 15 | 30 | 321 HBW or 35 HRC | ||
over 1 to 11/4 [25 to 32], incl | ... | 105 [725] | 65 [450] | 20 | 35 | 321 HBW or 35 HRC | ||
over 11/4 to 11/2 [32 to 40], inclA | ... | 100 [690] | 50 [345] | 28 | 45 | 321 HBW or 35 HRC |