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SAE-AISI S4 Steel vs. ASTM A182 Grade F122

Both SAE-AISI S4 steel and ASTM A182 grade F122 are iron alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S4 steel and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
710

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1430
1490
Melting Onset (Solidus), °C 1390
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 44
24
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
12
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
3.0
Embodied Energy, MJ/kg 29
44
Embodied Water, L/kg 48
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 77
25
Strength to Weight: Bending, points 22 to 48
22
Thermal Diffusivity, mm2/s 12
6.4
Thermal Shock Resistance, points 20 to 65
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.5 to 0.65
0.070 to 0.14
Chromium (Cr), % 0.1 to 0.5
10 to 11.5
Copper (Cu), % 0
0.3 to 1.7
Iron (Fe), % 95.2 to 96.9
81.3 to 87.7
Manganese (Mn), % 0.6 to 1.0
0 to 0.7
Molybdenum (Mo), % 0
0.25 to 0.6
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0
0.040 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 1.8 to 2.3
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0.15 to 0.35
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010