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ASTM A372 Grade J Steel vs. Grade CX2M Nickel

ASTM A372 grade J steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 17 to 22
45
Fatigue Strength, MPa 310 to 570
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
84
Tensile Strength: Ultimate (UTS), MPa 650 to 1020
550
Tensile Strength: Yield (Proof), MPa 430 to 850
310

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
990
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 44
10
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
65
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.5
12
Embodied Energy, MJ/kg 20
160
Embodied Water, L/kg 51
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 1930
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 23 to 36
18
Strength to Weight: Bending, points 21 to 29
17
Thermal Diffusivity, mm2/s 12
2.7
Thermal Shock Resistance, points 19 to 30
15

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.020
Chromium (Cr), % 0.8 to 1.2
22 to 24
Iron (Fe), % 96.7 to 97.8
0 to 1.5
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
15 to 16.5
Nickel (Ni), % 0
56.4 to 63
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.020