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ACI-ASTM CB30 Steel vs. SAE-AISI H42 Steel

Both ACI-ASTM CB30 steel and SAE-AISI H42 steel are iron alloys. They have 82% 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 ACI-ASTM CB30 steel and the bottom bar is SAE-AISI H42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 500
700 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1430
1620
Melting Onset (Solidus), °C 1380
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 21
24
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.3
8.8
Embodied Energy, MJ/kg 33
130
Embodied Water, L/kg 130
98

Common Calculations

PREN (Pitting Resistance) 20
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
23 to 65
Strength to Weight: Bending, points 18
21 to 42
Thermal Diffusivity, mm2/s 5.6
6.5
Thermal Shock Resistance, points 17
20 to 57

Alloy Composition

Carbon (C), % 0 to 0.3
0.55 to 0.7
Chromium (Cr), % 18 to 21
3.8 to 4.5
Copper (Cu), % 0 to 1.2
0 to 0.25
Iron (Fe), % 72.9 to 82
79.3 to 83.8
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0 to 2.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2