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SAE-AISI M4 Steel vs. ASTM A182 Grade F92

Both SAE-AISI M4 steel and ASTM A182 grade F92 are iron alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is ASTM A182 grade F92.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
690

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1610
1490
Melting Onset (Solidus), °C 1560
1450
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 25
26
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 14
2.8
Embodied Energy, MJ/kg 210
40
Embodied Water, L/kg 110
89

Common Calculations

PREN (Pitting Resistance) 30
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
24
Strength to Weight: Bending, points 23 to 45
22
Thermal Diffusivity, mm2/s 6.9
6.9
Thermal Shock Resistance, points 24 to 68
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 1.3 to 1.4
0.070 to 0.13
Chromium (Cr), % 3.8 to 4.8
8.5 to 9.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
85.8 to 89.1
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 4.3 to 5.5
0.3 to 0.6
Nickel (Ni), % 0 to 0.3
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 5.3 to 6.5
1.5 to 2.0
Vanadium (V), % 3.8 to 4.5
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010