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ASTM A372 Grade L Steel vs. SAE-AISI 9310 Steel

Both ASTM A372 grade L steel and SAE-AISI 9310 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade L steel and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
17 to 19
Fatigue Strength, MPa 670
300 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
510 to 570
Tensile Strength: Ultimate (UTS), MPa 1160
820 to 910
Tensile Strength: Yield (Proof), MPa 1040
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
4.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 22
24
Embodied Water, L/kg 54
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
540 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 41
29 to 32
Strength to Weight: Bending, points 31
25 to 27
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 34
24 to 27

Alloy Composition

Carbon (C), % 0.38 to 0.43
0.080 to 0.13
Chromium (Cr), % 0.7 to 0.9
1.0 to 1.4
Iron (Fe), % 95.2 to 96.3
93.8 to 95.2
Manganese (Mn), % 0.6 to 0.8
0.45 to 0.65
Molybdenum (Mo), % 0.2 to 0.3
0.080 to 0.15
Nickel (Ni), % 1.7 to 2.0
3.0 to 3.5
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0.2 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.012