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S17700 Stainless Steel vs. Grade M30H Nickel

S17700 stainless steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 1.0 to 23
11
Fatigue Strength, MPa 290 to 560
230
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
61
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
770
Tensile Strength: Yield (Proof), MPa 430 to 1210
470

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 890
900
Melting Completion (Liquidus), °C 1440
1250
Melting Onset (Solidus), °C 1400
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
50
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 40
110
Embodied Water, L/kg 150
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
75
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
700
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 42 to 59
25
Strength to Weight: Bending, points 32 to 40
22
Thermal Diffusivity, mm2/s 4.1
5.7
Thermal Shock Resistance, points 39 to 54
27

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.3
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 70.5 to 76.8
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 6.5 to 7.8
57.9 to 70.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
2.7 to 3.7
Sulfur (S), % 0 to 0.030
0 to 0.030