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AISI 205 Stainless Steel vs. Grade CW12MW Nickel

AISI 205 stainless steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. They have a modest 25% 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 (4, in this case) are not shown.

For each property being compared, the top bar is AISI 205 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, % 11 to 51
4.6
Fatigue Strength, MPa 410 to 640
130
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
85
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
560
Tensile Strength: Yield (Proof), MPa 450 to 1100
310

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 880
960
Melting Completion (Liquidus), °C 1380
1610
Melting Onset (Solidus), °C 1340
1560
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
70
Density, g/cm3 7.6
9.1
Embodied Carbon, kg CO2/kg material 2.6
13
Embodied Energy, MJ/kg 37
180
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
22
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
22
Strength to Weight: Axial, points 29 to 52
17
Strength to Weight: Bending, points 25 to 37
17
Thermal Shock Resistance, points 16 to 29
16

Alloy Composition

Carbon (C), % 0.12 to 0.25
0 to 0.12
Chromium (Cr), % 16.5 to 18.5
15.5 to 17.5
Iron (Fe), % 62.6 to 68.1
4.5 to 7.5
Manganese (Mn), % 14 to 15.5
0 to 1.0
Molybdenum (Mo), % 0
16 to 18
Nickel (Ni), % 1.0 to 1.7
49.2 to 60.1
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4