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ACI-ASTM CK35MN Steel vs. S40910 Stainless Steel

Both ACI-ASTM CK35MN steel and S40910 stainless steel are iron alloys. They have 60% 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 S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
23
Fatigue Strength, MPa 270
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 650
430
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
2.0
Embodied Energy, MJ/kg 81
28
Embodied Water, L/kg 210
94

Common Calculations

PREN (Pitting Resistance) 48
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
80
Resilience: Unit (Modulus of Resilience), kJ/m3 240
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 3.3
6.9
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.030
Chromium (Cr), % 22 to 24
10.5 to 11.7
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
85 to 89.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0.21 to 0.32
0 to 0.030
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0
0 to 0.5