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EN 1.4318 Stainless Steel vs. Grade M30H Nickel

EN 1.4318 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 EN 1.4318 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, % 44
11
Fatigue Strength, MPa 340
230
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
61
Tensile Strength: Ultimate (UTS), MPa 740
770
Tensile Strength: Yield (Proof), MPa 380
470

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 910
900
Melting Completion (Liquidus), °C 1430
1250
Melting Onset (Solidus), °C 1380
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
50
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 39
110
Embodied Water, L/kg 130
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
75
Resilience: Unit (Modulus of Resilience), kJ/m3 360
700
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 17
27

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 70.2 to 77.4
0 to 3.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 6.0 to 8.0
57.9 to 70.3
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
2.7 to 3.7
Sulfur (S), % 0 to 0.015
0 to 0.030