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

Both SAE-AISI 1552 steel and ASTM A372 grade G steel are iron alloys. Their average alloy composition is basically identical. 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 SAE-AISI 1552 steel and the bottom bar is ASTM A372 grade G steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
200 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
20 to 22
Fatigue Strength, MPa 290 to 400
310 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 460 to 510
410 to 570
Tensile Strength: Ultimate (UTS), MPa 760 to 840
650 to 910
Tensile Strength: Yield (Proof), MPa 460 to 650
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 51
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 47
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
500 to 810
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 30
23 to 32
Strength to Weight: Bending, points 24 to 25
21 to 27
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 26 to 29
19 to 27

Alloy Composition

Carbon (C), % 0.47 to 0.55
0.25 to 0.35
Chromium (Cr), % 0
0.4 to 0.65
Iron (Fe), % 97.9 to 98.3
97.4 to 98.4
Manganese (Mn), % 1.2 to 1.5
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.010

Comparable Variants