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ASTM A372 Grade J Steel vs. Grade M30C Nickel

ASTM A372 grade J steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade J steel and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 17 to 22
29
Fatigue Strength, MPa 310 to 570
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
61
Tensile Strength: Ultimate (UTS), MPa 650 to 1020
510
Tensile Strength: Yield (Proof), MPa 430 to 850
250

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
900
Melting Completion (Liquidus), °C 1460
1290
Melting Onset (Solidus), °C 1420
1240
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 44
22
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.5
9.5
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 51
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 1930
200
Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 23 to 36
16
Strength to Weight: Bending, points 21 to 29
16
Thermal Diffusivity, mm2/s 12
5.7
Thermal Shock Resistance, points 19 to 30
18

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.3
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
26 to 33
Iron (Fe), % 96.7 to 97.8
0 to 3.5
Manganese (Mn), % 0.75 to 1.1
0 to 1.5
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
1.0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.030