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Grade CW6M Nickel vs. AISI 304 Stainless Steel

Grade CW6M nickel belongs to the nickel alloys classification, while AISI 304 stainless steel belongs to the iron alloys. They have a modest 30% 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 grade CW6M nickel and the bottom bar is AISI 304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 29
8.0 to 43
Fatigue Strength, MPa 210
210 to 440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 560
580 to 1180
Tensile Strength: Yield (Proof), MPa 310
230 to 860

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 970
710
Melting Completion (Liquidus), °C 1530
1450
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 430
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 65
15
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 13
3.0
Embodied Energy, MJ/kg 170
43
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
86 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140 to 1870
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
21 to 42
Strength to Weight: Bending, points 17
20 to 32
Thermal Shock Resistance, points 16
12 to 25

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 17 to 20
18 to 20
Iron (Fe), % 0 to 3.0
66.5 to 74
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 17 to 20
0
Nickel (Ni), % 54.9 to 66
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030