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ASTM A372 Grade H Steel vs. Nickel 908

ASTM A372 grade H steel belongs to the iron alloys classification, while nickel 908 belongs to the nickel alloys. They have 41% of their average alloy composition in common. There are 28 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 H steel and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 20 to 22
11
Fatigue Strength, MPa 310 to 380
450
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
70
Shear Strength, MPa 410 to 570
800
Tensile Strength: Ultimate (UTS), MPa 650 to 910
1340
Tensile Strength: Yield (Proof), MPa 430 to 550
930

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
920
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 45
11
Thermal Expansion, µm/m-K 13
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
9.3
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 49
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
140
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
2340
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 23 to 32
45
Strength to Weight: Bending, points 21 to 27
33
Thermal Diffusivity, mm2/s 12
2.9
Thermal Shock Resistance, points 19 to 27
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0.3 to 0.4
0 to 0.030
Chromium (Cr), % 0.4 to 0.65
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97.3 to 98.3
35.6 to 44.6
Manganese (Mn), % 0.75 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8