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SAE-AISI 1137 Steel vs. SAE-AISI 1022 Steel

Both SAE-AISI 1137 steel and SAE-AISI 1022 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is SAE-AISI 1022 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
17 to 26
Fatigue Strength, MPa 250 to 400
190 to 300
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 39
45 to 54
Shear Modulus, GPa 73
73
Shear Strength, MPa 430 to 460
310 to 340
Tensile Strength: Ultimate (UTS), MPa 700 to 760
480 to 550
Tensile Strength: Yield (Proof), MPa 370 to 650
260 to 450

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 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 48
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
190 to 530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 27
17 to 19
Strength to Weight: Bending, points 22 to 24
17 to 19
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 21 to 23
15 to 17

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.18 to 0.23
Iron (Fe), % 97.8 to 98.3
98.7 to 99.12
Manganese (Mn), % 1.4 to 1.7
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0.080 to 0.13
0 to 0.050

Comparable Variants