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AISI 446 Stainless Steel vs. EN 1.4650 Stainless Steel

Both AISI 446 stainless steel and EN 1.4650 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 446 stainless steel and the bottom bar is EN 1.4650 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
48
Fatigue Strength, MPa 200
230
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 360
440
Tensile Strength: Ultimate (UTS), MPa 570
620
Tensile Strength: Yield (Proof), MPa 300
240

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1180
970
Melting Completion (Liquidus), °C 1510
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.1
Embodied Energy, MJ/kg 35
43
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 27
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 230
150
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.6
4.1
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 23 to 27
18.5 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 69.2 to 77
65.8 to 72.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 0 to 0.75
9.0 to 10
Nitrogen (N), % 0 to 0.25
0 to 0.080
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015