304 Stainless Steel Washers
304S31, BS2332, 1.4301, 304, S30400, X5CRNI18-10
304 Stainless Steel Washers are austenitic stainless steel washers manufactured from alloy containing chromium and nickel. Stainless Steel 304 Washers are used for corrosive environments. TorqBolt is an eminent 304 stainless steel washer supplier in India.
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304 Stainless Steel Properties
304 Stainless Steel Chemical Requirements
Austenitic Steels
| Grade | Description and UNS Designation | Classes | C | Mn | P | S | Si | Cr | Ni | Mo | Cu | CbF | Ti | V | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A193 Grade B8, B8A | 304, S30400 | 1, 1A, 2 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | . . . | . . . | . . . | . . . | . . . | . . . |
| Product Analysis VariationB | 0.01 | 0.04 | 0.010 | 0.005 | 0.05 | 0.20 | 0.15 | . . . | . . . | . . . | . . . | . . . | . . . |
304 Stainless Steel 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 B8 Classes 1 and 1D | All diameters | carbide solution treated | 75 | 30 | 30 | 50 | 223 HBW or 96 HRBC |
| ASTM A193 Grade B8 Classes 1 and 1D | All diameters | carbide solution treated | 75 | 30 | 35 | 50 | 223 HBW or 96 HRBC |
| ASTM A193 Grade B8A Class 1A | All diameters | carbide solution treated in the finished condition | 75 | 30 | 30 | 50 | 192 HBW or 90 HRB |
| ASTM A193 Grade B8 Class 2 | 3/4 and under | carbide solution treated and strain hardened | 125 | 100 | 12 | 35 | 321 HBW or 35 HRC |
| over 3/4 to 1, incl | 115 | 80 | 15 | 35 | 321 HBW or 35 HRC | ||
| over 1 to 11/4 , incl | 105 | 65 | 20 | 35 | 321 HBW or 35 HRC | ||
| over 11/4 to 11/2 , incl | 100 | 50 | 28 | 45 | 321 HBW or 35 HRC | ||
| ASTM A193 Grade B8 Class 2B | 2 and under | carbide solution treated and strain hardened | 95 | 75 | 25 | 40 | 321 HBW or 35 HRC |
| over 2 to 21/2 incl | 90 | 65 | 30 | 40 | 321 HBW or 35 HRC | ||
| over 21/2 to 3 incl | 80 | 55 | 30 | 40 | 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 B8 All diameters Classes 1 and 1D | All diameters | carbide solution treated | 515 | 205 | 30 | 50 | 223 HBW or 96 HRBC |
| ASTM A193M Grade B8A All diameters Class 1A | All diameters | carbide solution treated in the finished condition | 515 | 205 | 30 | 50 | 192 HBW or 90 HRB |
| ASTM A193M Grade B8 Class 2 | M20 and under | carbide solution treated and strain hardened | 860 | 690 | 12 | 35 | 321 HBW or 35 HRC |
| over M20 to M24, incl | 795 | 550 | 15 | 35 | 321 HBW or 35 HRC | ||
| over M24 to M30, incl | 725 | 450 | 20 | 35 | 321 HBW or 35 HRC | ||
| over M30 to M36, incl | 690 | 345 | 28 | 45 | 321 HBW or 35 HRC | ||
| ASTM A193M Grade B8 Class 2B | M48 and under | carbide solution treated and strain hardened | 655 | 515 | 25 | 40 | 321 HBW or 35 HRC |
| over M48 to M64, incl | 620 | 450 | 30 | 40 | 321 HBW or 35 HRC | ||
| over M64 to M72, incl | 550 | 380 | 30 | 40 | 321 HBW or 35 HRC |