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EN 1.4458 Stainless Steel vs. K94200 Alloy

Both EN 1.4458 stainless steel and K94200 alloy are iron alloys. There are 21 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 EN 1.4458 stainless steel and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 34
5.0 to 32
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
54
Tensile Strength: Ultimate (UTS), MPa 510
500 to 710
Tensile Strength: Yield (Proof), MPa 190
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 1370
1440
Specific Heat Capacity, J/kg-K 470
500
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.0

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 89
250 to 1460
Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
17 to 24
Strength to Weight: Bending, points 18
17 to 22
Thermal Diffusivity, mm2/s 4.2
3.7
Thermal Shock Resistance, points 12
49 to 70