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SAE-AISI T4 Steel vs. ASTM A387 Grade 11 Steel

Both SAE-AISI T4 steel and ASTM A387 grade 11 steel are iron alloys. They have 72% of their average alloy composition in common. There are 22 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 ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1810
1460
Melting Onset (Solidus), °C 1750
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.9
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.6
Embodied Energy, MJ/kg 130
21
Embodied Water, L/kg 120
53

Common Calculations

PREN (Pitting Resistance) 37
3.1
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 24 to 64
18 to 21
Strength to Weight: Bending, points 20 to 39
18 to 20
Thermal Diffusivity, mm2/s 5.4
11
Thermal Shock Resistance, points 24 to 64
15 to 18

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.050 to 0.17
Chromium (Cr), % 3.8 to 4.5
1.0 to 1.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 66.3 to 72.3
96.2 to 97.6
Manganese (Mn), % 0.1 to 0.4
0.4 to 0.65
Molybdenum (Mo), % 0.4 to 1.0
0.45 to 0.65
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.4
0.5 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0

Comparable Variants