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ACI-ASTM CA6NM Steel vs. SAE-AISI 1137 Steel

Both ACI-ASTM CA6NM steel and SAE-AISI 1137 steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is SAE-AISI 1137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11 to 17
Fatigue Strength, MPa 380
250 to 400
Poisson's Ratio 0.28
0.29
Reduction in Area, % 40
34 to 39
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 850
700 to 760
Tensile Strength: Yield (Proof), MPa 620
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 770
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 34
19
Embodied Water, L/kg 110
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
360 to 1130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25 to 27
Strength to Weight: Bending, points 26
22 to 24
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 31
21 to 23

Alloy Composition

Carbon (C), % 0 to 0.060
0.32 to 0.39
Chromium (Cr), % 11.5 to 14
0
Iron (Fe), % 78.4 to 84.6
97.8 to 98.3
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13