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ASTM A182 Grade F12 Class 2 vs. SAE-AISI M33 Steel

Both ASTM A182 grade F12 class 2 and SAE-AISI M33 steel are iron alloys. They have 76% 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 ASTM A182 grade F12 class 2 and the bottom bar is SAE-AISI M33 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 540
810 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1550
Melting Onset (Solidus), °C 1420
1500
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 43
20
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
32
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.6
7.7
Embodied Energy, MJ/kg 21
110
Embodied Water, L/kg 52
150

Common Calculations

PREN (Pitting Resistance) 2.8
38
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
27 to 75
Strength to Weight: Bending, points 19
24 to 46
Thermal Diffusivity, mm2/s 12
5.5
Thermal Shock Resistance, points 16
25 to 68

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.85 to 0.92
Chromium (Cr), % 0.8 to 1.3
3.5 to 4.0
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.4 to 98.3
71.4 to 76.3
Manganese (Mn), % 0.3 to 0.8
0.15 to 0.4
Molybdenum (Mo), % 0.44 to 0.65
9.0 to 10
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.1 to 0.6
0.15 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
1.3 to 2.1
Vanadium (V), % 0
1.0 to 1.4