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ASTM A372 Grade K Steel vs. Grade M35-2 Nickel

ASTM A372 grade K steel belongs to the iron alloys classification, while grade M35-2 nickel belongs to the nickel alloys. 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 ASTM A372 grade K steel and the bottom bar is grade M35-2 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 23
28
Fatigue Strength, MPa 440
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
62
Tensile Strength: Ultimate (UTS), MPa 780
500
Tensile Strength: Yield (Proof), MPa 620
230

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
900
Melting Completion (Liquidus), °C 1460
1280
Melting Onset (Solidus), °C 1420
1230
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 48
22
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
55
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.8
8.1
Embodied Energy, MJ/kg 24
110
Embodied Water, L/kg 57
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
170
Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 27
16
Strength to Weight: Bending, points 24
16
Thermal Diffusivity, mm2/s 13
5.7
Thermal Shock Resistance, points 23
17

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.35
Chromium (Cr), % 1.0 to 1.8
0
Copper (Cu), % 0
26 to 33
Iron (Fe), % 93.4 to 96.6
0 to 3.5
Manganese (Mn), % 0.1 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.6
0
Nickel (Ni), % 2.0 to 3.3
59.1 to 74
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.030