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SAE-AISI 1037 Steel vs. SAE-AISI 1080 Steel

Both SAE-AISI 1037 steel and SAE-AISI 1080 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1037 steel and the bottom bar is SAE-AISI 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
220 to 260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 20
11
Fatigue Strength, MPa 220 to 340
300 to 360
Poisson's Ratio 0.29
0.29
Reduction in Area, % 40 to 45
28 to 45
Shear Modulus, GPa 73
72
Shear Strength, MPa 360 to 390
460 to 520
Tensile Strength: Ultimate (UTS), MPa 580 to 640
770 to 870
Tensile Strength: Yield (Proof), MPa 320 to 540
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
11

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
80 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 780
610 to 920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 23
27 to 31
Strength to Weight: Bending, points 20 to 21
24 to 26
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 18 to 20
25 to 29

Alloy Composition

Carbon (C), % 0.32 to 0.38
0.75 to 0.88
Iron (Fe), % 98.5 to 99
98.1 to 98.7
Manganese (Mn), % 0.7 to 1.0
0.6 to 0.9
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050

Comparable Variants