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SAE-AISI T4 Steel vs. ACI-ASTM CG6MMN Steel

Both SAE-AISI T4 steel and ACI-ASTM CG6MMN steel are iron alloys. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T4 steel and the bottom bar is ACI-ASTM CG6MMN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
670

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1810
1420
Melting Onset (Solidus), °C 1750
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
22
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
4.8
Embodied Energy, MJ/kg 130
68
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 37
34
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
24
Strength to Weight: Bending, points 20 to 39
22
Thermal Shock Resistance, points 24 to 64
14

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
20.5 to 23.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 66.3 to 72.3
51.9 to 62.1
Manganese (Mn), % 0.1 to 0.4
4.0 to 6.0
Molybdenum (Mo), % 0.4 to 1.0
1.5 to 3.0
Nickel (Ni), % 0 to 0.3
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0.1 to 0.3