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AWS E385 vs. SAE-AISI A7 Steel

Both AWS E385 and SAE-AISI A7 steel are iron alloys. They have 53% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS E385 and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 580
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
37
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
13
Embodied Energy, MJ/kg 79
200
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 36
11
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
29 to 77
Strength to Weight: Bending, points 19
25 to 48
Thermal Diffusivity, mm2/s 3.6
10
Thermal Shock Resistance, points 15
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.030
2.0 to 2.9
Chromium (Cr), % 19.5 to 21.5
5.0 to 5.8
Copper (Cu), % 1.2 to 2.0
0 to 0.25
Iron (Fe), % 41.8 to 50.1
81.4 to 87.7
Manganese (Mn), % 1.0 to 2.5
0 to 0.8
Molybdenum (Mo), % 4.2 to 5.2
0.9 to 1.4
Nickel (Ni), % 24 to 26
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2