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EN 1.4449 Stainless Steel vs. ACI-ASTM CK35MN Steel

Both EN 1.4449 stainless steel and ACI-ASTM CK35MN steel are iron alloys. They have 82% 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 EN 1.4449 stainless steel and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 48
40
Fatigue Strength, MPa 240
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 620
650
Tensile Strength: Yield (Proof), MPa 250
310

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 3.9
5.9
Embodied Energy, MJ/kg 54
81
Embodied Water, L/kg 150
210

Common Calculations

PREN (Pitting Resistance) 27
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
210
Resilience: Unit (Modulus of Resilience), kJ/m3 160
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.035
Chromium (Cr), % 17 to 18.2
22 to 24
Copper (Cu), % 0 to 1.0
0 to 0.4
Iron (Fe), % 62.4 to 69.3
43.4 to 51.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.3 to 2.8
6.0 to 6.8
Nickel (Ni), % 11.5 to 12.5
20 to 22
Nitrogen (N), % 0 to 0.080
0.21 to 0.32
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020