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SAE-AISI M33 Steel vs. ASTM A356 Grade 2

Both SAE-AISI M33 steel and ASTM A356 grade 2 are iron alloys. They have 75% of their average alloy composition in common. There are 21 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 M33 steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
510

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1550
1470
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.4
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 150
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 75
18
Strength to Weight: Bending, points 24 to 46
18
Thermal Diffusivity, mm2/s 5.5
14
Thermal Shock Resistance, points 25 to 68
15

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.25
Chromium (Cr), % 3.5 to 4.0
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.4 to 76.3
97.7 to 99.55
Manganese (Mn), % 0.15 to 0.4
0 to 0.7
Molybdenum (Mo), % 9.0 to 10
0.45 to 0.65
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0