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ACI-ASTM CN7M Steel vs. S35000 Stainless Steel

Both ACI-ASTM CN7M steel and S35000 stainless steel are iron alloys. They have 68% 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 CN7M 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, % 44
2.3 to 14
Fatigue Strength, MPa 190
380 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 480
1300 to 1570
Tensile Strength: Yield (Proof), MPa 200
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1410
1460
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
14
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.2
Embodied Energy, MJ/kg 78
44
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 29
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1070 to 3360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
46 to 56
Strength to Weight: Bending, points 17
34 to 38
Thermal Diffusivity, mm2/s 5.6
4.4
Thermal Shock Resistance, points 12
42 to 51

Alloy Composition

Carbon (C), % 0 to 0.070
0.070 to 0.11
Chromium (Cr), % 19 to 22
16 to 17
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
72.7 to 76.9
Manganese (Mn), % 0 to 1.5
0.5 to 1.3
Molybdenum (Mo), % 2.0 to 3.0
2.5 to 3.2
Nickel (Ni), % 27.5 to 30.5
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), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030