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SAE-AISI M41 Steel vs. ACI-ASTM CB30 Steel

Both SAE-AISI M41 steel and ACI-ASTM CB30 steel are iron alloys. They have 81% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M41 steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
500

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1600
1430
Melting Onset (Solidus), °C 1550
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
21
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.1
2.3
Embodied Energy, MJ/kg 140
33
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 28
20
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 76
18
Strength to Weight: Bending, points 23 to 46
18
Thermal Diffusivity, mm2/s 6.0
5.6
Thermal Shock Resistance, points 25 to 71
17

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.3
Chromium (Cr), % 3.8 to 4.5
18 to 21
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 1.2
Iron (Fe), % 73.4 to 78.9
72.9 to 82
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 3.3 to 4.3
0
Nickel (Ni), % 0 to 0.3
0 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0