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EN 1.4315 Stainless Steel vs. Grade CW12MW Nickel

EN 1.4315 stainless steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4315 stainless steel and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 45
4.6
Fatigue Strength, MPa 290
130
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
85
Tensile Strength: Ultimate (UTS), MPa 630
560
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 960
960
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 3.0
13
Embodied Energy, MJ/kg 43
180
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
22
Resilience: Unit (Modulus of Resilience), kJ/m3 240
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 18 to 20
15.5 to 17.5
Iron (Fe), % 65.7 to 73.9
4.5 to 7.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
16 to 18
Nickel (Ni), % 8.0 to 11
49.2 to 60.1
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4