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SAE-AISI M3 Class 2 Steel vs. ASTM A182 Grade F23

Both SAE-AISI M3 class 2 steel and ASTM A182 grade F23 are iron alloys. They have 84% 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 M3 class 2 steel and the bottom bar is ASTM A182 grade F23.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
570

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1620
1500
Melting Onset (Solidus), °C 1570
1450
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 26
41
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
7.0
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 12
2.5
Embodied Energy, MJ/kg 180
36
Embodied Water, L/kg 110
59

Common Calculations

PREN (Pitting Resistance) 33
5.7
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 74
20
Strength to Weight: Bending, points 22 to 45
19
Thermal Diffusivity, mm2/s 7.2
11
Thermal Shock Resistance, points 24 to 69
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 1.2 to 1.3
0.040 to 0.1
Chromium (Cr), % 3.8 to 4.5
1.9 to 2.6
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.8 to 82.3
93.2 to 96.2
Manganese (Mn), % 0.15 to 0.4
0.1 to 0.6
Molybdenum (Mo), % 4.8 to 6.5
0.050 to 0.3
Nickel (Ni), % 0 to 0.3
0 to 0.4
Niobium (Nb), % 0
0.020 to 0.080
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.0050 to 0.060
Tungsten (W), % 5.0 to 6.8
1.5 to 1.8
Vanadium (V), % 2.8 to 3.8
0.2 to 0.3