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ACI-ASTM CK35MN Steel vs. EN 1.4031 Stainless Steel

Both ACI-ASTM CK35MN steel and EN 1.4031 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 31 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 EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
11 to 13
Fatigue Strength, MPa 270
220 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 650
670 to 900
Tensile Strength: Yield (Proof), MPa 310
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
30
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.0
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.9
1.9
Embodied Energy, MJ/kg 81
27
Embodied Water, L/kg 210
100

Common Calculations

PREN (Pitting Resistance) 48
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 240
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
24 to 32
Strength to Weight: Bending, points 21
22 to 27
Thermal Diffusivity, mm2/s 3.3
8.1
Thermal Shock Resistance, points 14
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.035
0.36 to 0.42
Chromium (Cr), % 22 to 24
12.5 to 14.5
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
83 to 87.1
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
0
Nitrogen (N), % 0.21 to 0.32
0
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 0.015