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ASTM A372 Grade L Steel vs. SAE-AISI 1005 Steel

Both ASTM A372 grade L steel and SAE-AISI 1005 steel are iron alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is ASTM A372 grade L steel and the bottom bar is SAE-AISI 1005 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
95
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
23
Fatigue Strength, MPa 670
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
210
Tensile Strength: Ultimate (UTS), MPa 1160
330
Tensile Strength: Yield (Proof), MPa 1040
260

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
18
Embodied Water, L/kg 54
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
70
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 41
12
Strength to Weight: Bending, points 31
13
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 34
10

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.060
Chromium (Cr), % 0.7 to 0.9
0
Iron (Fe), % 95.2 to 96.3
99.5 to 100
Manganese (Mn), % 0.6 to 0.8
0 to 0.35
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.010
0 to 0.050