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ACI-ASTM CK35MN Steel vs. AISI 445 Stainless Steel

Both ACI-ASTM CK35MN steel and AISI 445 stainless steel are iron alloys. They have 69% 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 AISI 445 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
25
Fatigue Strength, MPa 270
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 650
480
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
480
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.9
2.6
Embodied Energy, MJ/kg 81
38
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 48
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
98
Resilience: Unit (Modulus of Resilience), kJ/m3 240
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 3.3
5.6
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.020
Chromium (Cr), % 22 to 24
19 to 21
Copper (Cu), % 0 to 0.4
0.3 to 0.6
Iron (Fe), % 43.4 to 51.8
74.9 to 80.7
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 0.6
Niobium (Nb), % 0
0 to 0.8
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 0.012