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ACI-ASTM CK35MN Steel vs. EN 1.4865 Stainless Steel

Both ACI-ASTM CK35MN steel and EN 1.4865 stainless steel are iron alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
6.8
Fatigue Strength, MPa 270
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 650
470
Tensile Strength: Yield (Proof), MPa 310
250

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.9
5.8
Embodied Energy, MJ/kg 81
81
Embodied Water, L/kg 210
200

Common Calculations

PREN (Pitting Resistance) 48
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
27
Resilience: Unit (Modulus of Resilience), kJ/m3 240
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.3
3.1
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.035
0.3 to 0.5
Chromium (Cr), % 22 to 24
18 to 21
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.4 to 51.8
34.4 to 44.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 6.8
0 to 0.5
Nickel (Ni), % 20 to 22
36 to 39
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.020
0 to 0.030