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SAE-AISI 1132 Steel vs. SAE-AISI 12L14 Steel

Both SAE-AISI 1132 steel and SAE-AISI 12L14 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1132 steel and the bottom bar is SAE-AISI 12L14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 18
11 to 25
Fatigue Strength, MPa 240 to 380
190 to 290
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39 to 46
39 to 51
Shear Modulus, GPa 73
72
Shear Strength, MPa 400 to 440
280 to 370
Tensile Strength: Ultimate (UTS), MPa 640 to 720
440 to 620
Tensile Strength: Yield (Proof), MPa 350 to 590
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
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 97
64 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 940
180 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 25
15 to 22
Strength to Weight: Bending, points 21 to 23
16 to 20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 19 to 22
14 to 20

Alloy Composition

Carbon (C), % 0.24 to 0.34
0 to 0.15
Iron (Fe), % 97.8 to 98.3
97.9 to 98.7
Lead (Pb), % 0
0.15 to 0.35
Manganese (Mn), % 1.4 to 1.7
0.85 to 1.2
Phosphorus (P), % 0 to 0.040
0.040 to 0.090
Sulfur (S), % 0.080 to 0.13
0.26 to 0.35

Comparable Variants