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SAE-AISI M62 Steel vs. R30556 Alloy

Both SAE-AISI M62 steel and R30556 alloy are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M62 steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 830 to 2440
780

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1650
1420
Melting Onset (Solidus), °C 1600
1330
Specific Heat Capacity, J/kg-K 430
450
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 30
70
Density, g/cm3 8.5
8.4
Embodied Carbon, kg CO2/kg material 10
8.7
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 110
300

Common Calculations

PREN (Pitting Resistance) 49
40
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 27 to 80
26
Strength to Weight: Bending, points 23 to 47
22
Thermal Shock Resistance, points 24 to 71
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 1.3 to 1.4
0.050 to 0.15
Chromium (Cr), % 3.5 to 4.0
21 to 23
Cobalt (Co), % 0
16 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.6 to 77.4
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.0
Molybdenum (Mo), % 10 to 11
2.5 to 4.0
Nickel (Ni), % 0 to 0.3
19 to 22.5
Niobium (Nb), % 0
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Tungsten (W), % 5.8 to 6.5
2.0 to 3.5
Vanadium (V), % 1.8 to 2.1
0
Zinc (Zn), % 0
0.0010 to 0.1