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ACI-ASTM CK35MN Steel vs. S39274 Stainless Steel

Both ACI-ASTM CK35MN steel and S39274 stainless steel are iron alloys. They have 82% 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 CK35MN steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 40
17
Fatigue Strength, MPa 270
380
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 650
900
Tensile Strength: Yield (Proof), MPa 310
620

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
16
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
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.9
4.3
Embodied Energy, MJ/kg 81
60
Embodied Water, L/kg 210
180

Common Calculations

PREN (Pitting Resistance) 48
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
140
Resilience: Unit (Modulus of Resilience), kJ/m3 240
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 3.3
4.2
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.030
Chromium (Cr), % 22 to 24
24 to 26
Copper (Cu), % 0 to 0.4
0.2 to 0.8
Iron (Fe), % 43.4 to 51.8
57 to 65.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
2.5 to 3.5
Nickel (Ni), % 20 to 22
6.0 to 8.0
Nitrogen (N), % 0.21 to 0.32
0.24 to 0.32
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5