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ACI-ASTM CA6NM Steel vs. S13800 Stainless Steel

Both ACI-ASTM CA6NM steel and S13800 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
11 to 18
Fatigue Strength, MPa 380
410 to 870
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40
39 to 62
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
980 to 1730
Tensile Strength: Yield (Proof), MPa 620
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 770
810
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
3.4
Embodied Energy, MJ/kg 34
46
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
35 to 61
Strength to Weight: Bending, points 26
28 to 41
Thermal Diffusivity, mm2/s 6.7
4.3
Thermal Shock Resistance, points 31
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.060
0 to 0.050
Chromium (Cr), % 11.5 to 14
12.3 to 13.2
Iron (Fe), % 78.4 to 84.6
73.6 to 77.3
Manganese (Mn), % 0 to 1.0
0 to 0.2
Molybdenum (Mo), % 0.4 to 1.0
2.0 to 3.0
Nickel (Ni), % 3.5 to 4.5
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0080