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ASTM A372 Grade L Steel vs. SAE-AISI 1552 Steel

Both ASTM A372 grade L steel and SAE-AISI 1552 steel are iron alloys. They have a very high 97% 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 1552 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
11 to 14
Fatigue Strength, MPa 670
290 to 400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 700
460 to 510
Tensile Strength: Ultimate (UTS), MPa 1160
760 to 840
Tensile Strength: Yield (Proof), MPa 1040
460 to 650

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
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
51
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 54
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
81 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
560 to 1130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 41
27 to 30
Strength to Weight: Bending, points 31
24 to 25
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 34
26 to 29

Alloy Composition

Carbon (C), % 0.38 to 0.43
0.47 to 0.55
Chromium (Cr), % 0.7 to 0.9
0
Iron (Fe), % 95.2 to 96.3
97.9 to 98.3
Manganese (Mn), % 0.6 to 0.8
1.2 to 1.5
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