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ASTM A372 Grade D Steel vs. SAE-AISI 1117 Steel

Both ASTM A372 grade D steel and SAE-AISI 1117 steel are iron alloys. They have a very high 99% 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 D steel and the bottom bar is SAE-AISI 1117 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17 to 26
Fatigue Strength, MPa 340
190 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 500
320 to 330
Tensile Strength: Ultimate (UTS), MPa 810
490 to 540
Tensile Strength: Yield (Proof), MPa 510
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 51
52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 700
180 to 550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
17 to 19
Strength to Weight: Bending, points 25
18 to 19
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 26
15 to 17

Alloy Composition

Carbon (C), % 0.4 to 0.5
0.14 to 0.2
Iron (Fe), % 97.1 to 97.9
98.3 to 98.8
Manganese (Mn), % 1.4 to 1.8
1.0 to 1.3
Molybdenum (Mo), % 0.17 to 0.27
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
0.080 to 0.13