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EN 1.4646 Stainless Steel vs. ACI-ASTM CK35MN Steel

Both EN 1.4646 stainless steel and ACI-ASTM CK35MN steel are iron alloys. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
40
Fatigue Strength, MPa 340
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 750
650
Tensile Strength: Yield (Proof), MPa 430
310

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.9
Embodied Energy, MJ/kg 41
81
Embodied Water, L/kg 160
210

Common Calculations

PREN (Pitting Resistance) 23
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
210
Resilience: Unit (Modulus of Resilience), kJ/m3 460
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
21
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0.020 to 0.1
0 to 0.035
Chromium (Cr), % 17 to 19
22 to 24
Copper (Cu), % 1.5 to 3.0
0 to 0.4
Iron (Fe), % 59 to 67.3
43.4 to 51.8
Manganese (Mn), % 10.5 to 12.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
6.0 to 6.8
Nickel (Ni), % 3.5 to 4.5
20 to 22
Nitrogen (N), % 0.2 to 0.3
0.21 to 0.32
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020