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AISI 446 Stainless Steel vs. EN 1.4912 Stainless Steel

Both AISI 446 stainless steel and EN 1.4912 stainless steel are iron alloys. They have 89% 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 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
40
Fatigue Strength, MPa 200
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 360
420
Tensile Strength: Ultimate (UTS), MPa 570
610
Tensile Strength: Yield (Proof), MPa 300
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
520
Maximum Temperature: Mechanical, °C 1180
940
Melting Completion (Liquidus), °C 1510
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.8
Embodied Energy, MJ/kg 35
55
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 27
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 230
130
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
20
Thermal Diffusivity, mm2/s 4.6
4.2
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.2
0.040 to 0.1
Chromium (Cr), % 23 to 27
17 to 19
Iron (Fe), % 69.2 to 77
64.6 to 73.6
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 0 to 0.75
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.25
0
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