Ferrous Alloys

Type 310 Austenitic Stainless Steel

Application & Characteristics 
Used for components requiring good heat resistance. Resists scaling in continuous service to 2100F. Often used in processing equipment, thermocouple protective tubing and special fuel and conduit lines.
Chemical Composition (%)
Cr 25.0; Ni 20.0; Balance Fe. Allowable maximums: C 0.18; Mn 2.0; Si 1.50; P 0.045; S 0.030
Physical Properties
Melting Range (°F)2550 – 2650
Density (lbs/in³) 68F0.285
Thermal Expansion (in/in °Fx10 to the power of -6)8.5 (0 – 600F)
Electrical Resistivity (ohms/cir mil/ft.) 68F470
Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)85
Yield Strength (psi x 10³)40
Elongation ( % )50
HardnessB85(Rockwell)
Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³)125
Yield Strength (psi x 10³)95
Elongation ( % )25
HardnessC20(Rockwell)
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)165
Yield Strength (psi x 10³)135
Elongation ( % )8
HardnessC30(Rockwell)

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