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ACI-ASTM CK35MN Steel vs. S82012 Stainless Steel

Both ACI-ASTM CK35MN steel and S82012 stainless steel are iron alloys. They have 71% 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 CK35MN steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 270
480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 650
800
Tensile Strength: Yield (Proof), MPa 310
560

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.9
2.4
Embodied Energy, MJ/kg 81
35
Embodied Water, L/kg 210
140

Common Calculations

PREN (Pitting Resistance) 48
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
290
Resilience: Unit (Modulus of Resilience), kJ/m3 240
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 3.3
3.9
Thermal Shock Resistance, points 14
23

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.050
Chromium (Cr), % 22 to 24
19 to 20.5
Copper (Cu), % 0 to 0.4
0 to 1.0
Iron (Fe), % 43.4 to 51.8
71.3 to 77.9
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 6.0 to 6.8
0.1 to 0.6
Nickel (Ni), % 20 to 22
0.8 to 1.5
Nitrogen (N), % 0.21 to 0.32
0.16 to 0.26
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.0050