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ASTM A387 Grade 9 Steel vs. AWS E2593

Both ASTM A387 grade 9 steel and AWS E2593 are iron alloys. They have 69% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is AWS E2593.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 500 to 600
850

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.2
Embodied Energy, MJ/kg 28
59
Embodied Water, L/kg 87
190

Common Calculations

PREN (Pitting Resistance) 12
39
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
30
Strength to Weight: Bending, points 18 to 20
25
Thermal Diffusivity, mm2/s 6.9
4.3
Thermal Shock Resistance, points 14 to 17
21

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.040
Chromium (Cr), % 8.0 to 10
24 to 27
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 87.1 to 90.8
52.7 to 62.5
Manganese (Mn), % 0.3 to 0.6
0.5 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
2.9 to 3.9
Nickel (Ni), % 0
8.5 to 10.5
Nitrogen (N), % 0
0.080 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.040
0