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ACI-ASTM CN7MS Steel vs. S35000 Stainless Steel

Both ACI-ASTM CN7MS steel and S35000 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
2.3 to 14
Fatigue Strength, MPa 200
380 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 540
1300 to 1570
Tensile Strength: Yield (Proof), MPa 230
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1040
900
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
3.2
Embodied Energy, MJ/kg 71
44
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 28
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1070 to 3360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
46 to 56
Strength to Weight: Bending, points 19
34 to 38
Thermal Diffusivity, mm2/s 3.2
4.4
Thermal Shock Resistance, points 13
42 to 51

Alloy Composition

Carbon (C), % 0 to 0.070
0.070 to 0.11
Chromium (Cr), % 18 to 20
16 to 17
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 45.4 to 53.5
72.7 to 76.9
Manganese (Mn), % 0 to 1.0
0.5 to 1.3
Molybdenum (Mo), % 2.5 to 3.0
2.5 to 3.2
Nickel (Ni), % 22 to 25
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 2.5 to 3.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030