Ferrous Alloys
Type 321 Austenitic Stainless Steel
Application & Characteristics | |
---|---|
Stabilized with titanium. Used in weldments for corrosive service in the 800 to 1650F range. | |
Chemical Composition (%) | |
Cr 18.0; Ni 10.0; Ti 0.40; Balance Fe. Allowable maximums: C 0.08; Mn 2.0; Si 1.50; P 0.045; S 0.030 | |
Physical Properties | |
Melting Range (°F) | 2550 2600 |
Density (lbs/in³) 68F | 0.286 |
Thermal Expansion (in/in °Fx10 to the power of -6) | 9.2 (0 600F) |
Electrical Resistivity (ohms/cir mil/ft.) 68F | 433 |
Mechanical Properties Temper = A | |
Tensile Strength (psi x 10³) | 85 |
Yield Strength (psi x 10³) | 40 |
Elongation ( % ) | 50 |
Hardness | B85(Rockwell) |
Mechanical Properties Temper = H/2 | |
Tensile Strength (psi x 10³) | 125 |
Yield Strength (psi x 10³) | 95 |
Elongation ( % ) | 25 |
Hardness | C20(Rockwell) |
Mechanical Properties Temper = H | |
Tensile Strength (psi x 10³) | 165 |
Yield Strength (psi x 10³) | 135 |
Elongation ( % ) | 8 |
Hardness | C30(Rockwell) |
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