Ferrous Alloys

Type 304L Austenitic Stainless Steel

Application & Characteristics 
Weldments for corrosive conditions where intergranular carbide precipitation must be avoided. Nuclear components.
Chemical Composition (%)
Cr 19.0; Ni 10.0; Balance Fe. Allowable maximums: C 0.03: Mn 2.0; Si 1.0; P 0.045; S 0.030
Physical Properties
Melting Range (°F)2550 – 2650
Density (lbs/in³) 68F0.286
Thermal Expansion (in/in °Fx10 to the power of -6)9.6 (32 – 212F)
Electrical Resistivity (ohms/cir mil/ft.) 68F433
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)130
Yield Strength (psi x 10³)110
Elongation ( % )25
HardnessC25(Rockwell)
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)175
Yield Strength (psi x 10³)145
Elongation ( % )8
HardnessC35(Rockwell)

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