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SAE-AISI 1137 Steel vs. ASTM A266 Carbon Steel

Both SAE-AISI 1137 steel and ASTM A266 carbon steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
21 to 26
Fatigue Strength, MPa 250 to 400
170 to 200
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 39
34 to 43
Shear Modulus, GPa 73
73
Shear Strength, MPa 430 to 460
320 to 380
Tensile Strength: Ultimate (UTS), MPa 700 to 760
500 to 600
Tensile Strength: Yield (Proof), MPa 370 to 650
230 to 290

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 to 52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18 to 19
Embodied Water, L/kg 48
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
140 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 27
18 to 21
Strength to Weight: Bending, points 22 to 24
18 to 20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 21 to 23
16 to 19