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Hardened SAE-AISI M62 vs. Hardened SAE-AISI T6

Both hardened SAE-AISI M62 and hardened SAE-AISI T6 are iron alloys. Both are furnished in the hardened (H) condition. They have 74% of their average alloy composition in common. There are 21 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 hardened SAE-AISI M62 and the bottom bar is hardened SAE-AISI T6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.29
Rockwell C Hardness 75
67
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 2440
2150

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1650
1830
Melting Onset (Solidus), °C 1600
1770
Specific Heat Capacity, J/kg-K 430
400
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
70
Density, g/cm3 8.5
9.5
Embodied Carbon, kg CO2/kg material 10
11
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 49
39
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 80
63
Strength to Weight: Bending, points 47
39
Thermal Shock Resistance, points 71
64

Alloy Composition

Carbon (C), % 1.3 to 1.4
0.75 to 0.85
Chromium (Cr), % 3.5 to 4.0
4.0 to 4.8
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 73.6 to 77.4
55.9 to 63.5
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.4
Molybdenum (Mo), % 10 to 11
0.4 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.8 to 6.5
18.5 to 21
Vanadium (V), % 1.8 to 2.1
1.5 to 2.1