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S21640 Stainless Steel vs. N07041 Nickel

S21640 stainless steel belongs to the iron alloys classification, while N07041 nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S21640 stainless steel and the bottom bar is N07041 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 46
14
Fatigue Strength, MPa 320
540
Shear Strength, MPa 520
850
Tensile Strength: Ultimate (UTS), MPa 740
1400
Tensile Strength: Yield (Proof), MPa 350
1050

Thermal Properties

Melting Onset (Solidus), °C 1380
1320
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
180
Resilience: Unit (Modulus of Resilience), kJ/m3 300
2510
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
47
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 4.0
3.0
Thermal Shock Resistance, points 16
38