316 Stainless Steel Fasteners
316S31, BS2347, 1.4401, 316, S31600, X5CRNIMO17-12-2
316 Stainless Steel Fasteners are austenitic stainless steel fasteners manufactured from alloy containing chromium, nickel, molybdenum and nitrogen with restricted carbon content. Stainless Steel 316 Fasteners are used for corrosive environments. TorqBolt is an eminent 316 stainless steel fastener supplier in India.
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316 Stainless Steel Fasteners Properties
316 Stainless Steel Fasteners Chemical Requirements
Austenitic Steels
| Grade | Description and UNS Designatio | Classes | C | Mn | P | S | Si | Cr | Ni | Mo | Cu | CbF | Ti | V | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A193 Grade B8M, B8MA | 316, S31600 | 1, 1A, 1D, 2 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | . . . | . . . | . . . | . . . | . . . |
| Product Analysis VariationB | 0.01 | 0.04 | 0.010 | 0.005 | 0.05 | 0.20 | 0.15 | 0.10 | . . . | . . . | . . . | . . . | . . . |
316 Stainless Steel Fasteners Mechanical Requirements
Austenitic Steels (Inch)
| 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 B8M | All diameters | carbide solution treated | 75 | 30 | 30 | 50 | 223 HBW or 96 HRBC |
| ASTM A193 Grade B8M | 3/4 and under | carbide solution treated and strain hardened | 110 | 95 | 15 | 45 | 321 HBW or 35 HRC |
| over 3/4 to 1 incl | 100 | 80 | 20 | 45 | 321 HBW or 35 HRC | ||
| Over 1 to 11/4 , incl | 95 | 65 | 25 | 45 | 321 HBW or 35 HRC | ||
| over 11/4 to 11/2 , incl | 90 | 50 | 30 | 45 | 321 HBW or 35 HRC |
Austenitic Steels (Metric)
| 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 B8MA | All diameters | carbide solution treated in the finished condition | 515 | 205 | 30 | 50 | 192 HBW or 90 HRB |
| ASTM A193M Grade B8M | M20 and under | carbide solution treated and strain hardened | 760 | 655 | 15 | 45 | 321 HBW or 35 HRC |
| over M20 to M24, incl | 690 | 550 | 20 | 45 | 321 HBW or 35 HRC | ||
| over M24 to M30, incl | 655 | 450 | 25 | 45 | 321 HBW or 35 HRC | ||
| over M30 to M36, incl | 620 | 345 | 30 | 45 | 321 HBW or 35 HRC |