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Grade M30C Nickel vs. ASTM Grade HK Steel

Grade M30C nickel belongs to the nickel alloys classification, while ASTM grade HK steel belongs to the iron alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is ASTM grade HK steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 29
11
Fatigue Strength, MPa 170
150
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 61
79
Tensile Strength: Ultimate (UTS), MPa 510
500
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1290
1400
Melting Onset (Solidus), °C 1240
1350
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 60
25
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 9.5
4.4
Embodied Energy, MJ/kg 140
63
Embodied Water, L/kg 250
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
48
Resilience: Unit (Modulus of Resilience), kJ/m3 200
190
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 5.7
3.9
Thermal Shock Resistance, points 18
11

Alloy Composition

Carbon (C), % 0 to 0.3
0.2 to 0.6
Chromium (Cr), % 0
24 to 28
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
44.8 to 57.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 56.6 to 72
18 to 22
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040