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EN 1.4307 Stainless Steel vs. 50Cr-50Ni-Cb Alloy

EN 1.4307 stainless steel belongs to the iron alloys classification, while 50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals. They have a modest 29% 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 1.4307 stainless steel and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 14 to 46
5.6
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 200 to 570
390

Thermal Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
60
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.0
9.2
Embodied Energy, MJ/kg 43
130
Embodied Water, L/kg 140
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
30
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 810
370
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 27
20
Thermal Shock Resistance, points 13 to 20
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 19.5
47 to 52
Iron (Fe), % 66.8 to 74.5
0 to 1.0
Manganese (Mn), % 0 to 2.0
0 to 0.3
Nickel (Ni), % 8.0 to 10.5
43.3 to 51.6
Niobium (Nb), % 0
1.4 to 1.7
Nitrogen (N), % 0 to 0.1
0 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.5