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EN 1.4650 Stainless Steel vs. ACI-ASTM CN3M Steel

Both EN 1.4650 stainless steel and ACI-ASTM CN3M steel are iron alloys. They have 78% 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 1.4650 stainless steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 48
34
Fatigue Strength, MPa 230
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 620
500
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 970
1100
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.1
5.9
Embodied Energy, MJ/kg 43
80
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 20
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 4.1
3.4
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18.5 to 20
20 to 22
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 65.8 to 72.5
42.4 to 52.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 9.0 to 10
23 to 27
Nitrogen (N), % 0 to 0.080
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030