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S17700 Stainless Steel vs. Grade CU5MCuC Nickel

S17700 stainless steel belongs to the iron alloys classification, while grade CU5MCuC nickel belongs to the nickel alloys. They have 55% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is grade CU5MCuC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.0 to 23
22
Fatigue Strength, MPa 290 to 560
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
580
Tensile Strength: Yield (Proof), MPa 430 to 1210
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 890
980
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
45
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 40
110
Embodied Water, L/kg 150
230

Common Calculations

PREN (Pitting Resistance) 17
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 42 to 59
20
Strength to Weight: Bending, points 32 to 40
19
Thermal Shock Resistance, points 39 to 54
16

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.050
Chromium (Cr), % 16 to 18
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 70.5 to 76.8
22.2 to 37.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 6.5 to 7.8
38 to 44
Niobium (Nb), % 0
0.6 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030