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ACI-ASTM CN7M Steel vs. S13800 Stainless Steel

Both ACI-ASTM CN7M steel and S13800 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 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 CN7M steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
11 to 18
Fatigue Strength, MPa 190
410 to 870
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 480
980 to 1730
Tensile Strength: Yield (Proof), MPa 200
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 32
15
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.6
3.4
Embodied Energy, MJ/kg 78
46
Embodied Water, L/kg 210
140

Common Calculations

PREN (Pitting Resistance) 29
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
35 to 61
Strength to Weight: Bending, points 17
28 to 41
Thermal Diffusivity, mm2/s 5.6
4.3
Thermal Shock Resistance, points 12
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.070
0 to 0.050
Chromium (Cr), % 19 to 22
12.3 to 13.2
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
73.6 to 77.3
Manganese (Mn), % 0 to 1.5
0 to 0.2
Molybdenum (Mo), % 2.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 27.5 to 30.5
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 1.5
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.0080