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ACI-ASTM CK35MN Steel vs. S44635 Stainless Steel

Both ACI-ASTM CK35MN steel and S44635 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 40
23
Fatigue Strength, MPa 270
390
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 650
710
Tensile Strength: Yield (Proof), MPa 310
580

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
610
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 16
11

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
22
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
4.4
Embodied Energy, MJ/kg 81
62
Embodied Water, L/kg 210
170

Common Calculations

PREN (Pitting Resistance) 48
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
810
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 3.3
4.4
Thermal Shock Resistance, points 14
23

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.025
Chromium (Cr), % 22 to 24
24.5 to 26
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
61.5 to 68.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
3.5 to 4.5
Nickel (Ni), % 20 to 22
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0.21 to 0.32
0 to 0.035
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8