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EN 1.4303 Stainless Steel vs. 50Cr-50Ni Alloy

EN 1.4303 stainless steel belongs to the iron alloys classification, while 50Cr-50Ni alloy belongs to the otherwise unclassified metals. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is 50Cr-50Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 13 to 49
5.7
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 590 to 900
620
Tensile Strength: Yield (Proof), MPa 230 to 560
390

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
50
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
7.9
Embodied Energy, MJ/kg 46
110
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
31
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
350
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
21
Strength to Weight: Bending, points 20 to 26
20
Thermal Shock Resistance, points 13 to 20
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 17 to 19
48 to 52
Iron (Fe), % 64.8 to 72
0 to 1.0
Manganese (Mn), % 0 to 2.0
0 to 0.3
Nickel (Ni), % 11 to 13
44.5 to 52
Nitrogen (N), % 0 to 0.1
0 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.5