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AISI 439 Stainless Steel vs. Grade M30H Nickel

AISI 439 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 (7, in this case) are not shown.

For each property being compared, the top bar is AISI 439 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, % 23
11
Fatigue Strength, MPa 170
230
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
61
Tensile Strength: Ultimate (UTS), MPa 490
770
Tensile Strength: Yield (Proof), MPa 250
470

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 890
900
Melting Completion (Liquidus), °C 1510
1250
Melting Onset (Solidus), °C 1430
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 25
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
50
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.3
7.7
Embodied Energy, MJ/kg 34
110
Embodied Water, L/kg 120
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
75
Resilience: Unit (Modulus of Resilience), kJ/m3 160
700
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 6.7
5.7
Thermal Shock Resistance, points 16
27

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 77.1 to 82.8
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0 to 0.5
57.9 to 70.3
Nitrogen (N), % 0 to 0.030
0
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
Titanium (Ti), % 0.2 to 1.1
0