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SAE-AISI T4 Steel vs. ASTM A182 Grade F6b

Both SAE-AISI T4 steel and ASTM A182 grade F6b are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T4 steel and the bottom bar is ASTM A182 grade F6b.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
850

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1750
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
25
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 55
8.0
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
2.2
Embodied Energy, MJ/kg 130
30
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 37
14
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
30
Strength to Weight: Bending, points 20 to 39
26
Thermal Diffusivity, mm2/s 5.4
6.7
Thermal Shock Resistance, points 24 to 64
31

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.15
Chromium (Cr), % 3.8 to 4.5
11.5 to 13.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 66.3 to 72.3
81.2 to 87.1
Manganese (Mn), % 0.1 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
0.4 to 0.6
Nickel (Ni), % 0 to 0.3
1.0 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0