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AISI 446 Stainless Steel vs. EN 1.4374 Stainless Steel

Both AISI 446 stainless steel and EN 1.4374 stainless steel are iron alloys. They have 86% 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 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
40
Fatigue Strength, MPa 200
340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 360
550
Tensile Strength: Ultimate (UTS), MPa 570
800
Tensile Strength: Yield (Proof), MPa 300
400

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1180
920
Melting Completion (Liquidus), °C 1510
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.9
Embodied Energy, MJ/kg 35
42
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 27
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 230
400
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0 to 0.2
0.050 to 0.1
Chromium (Cr), % 23 to 27
17.5 to 18.5
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 69.2 to 77
63.5 to 67.9
Manganese (Mn), % 0 to 1.5
9.0 to 10
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.75
5.0 to 6.0
Nitrogen (N), % 0 to 0.25
0.25 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030