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EN 1.4634 Stainless Steel vs. EN 1.4466 Stainless Steel

Both EN 1.4634 stainless steel and EN 1.4466 stainless steel are iron alloys. They have 69% 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 1.4634 stainless steel and the bottom bar is EN 1.4466 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
42
Fatigue Strength, MPa 180
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 340
440
Tensile Strength: Ultimate (UTS), MPa 540
640
Tensile Strength: Yield (Proof), MPa 280
280

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 500
450
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
5.0
Embodied Energy, MJ/kg 42
70
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 19
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
220
Resilience: Unit (Modulus of Resilience), kJ/m3 200
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 5.8
3.7
Thermal Shock Resistance, points 19
14

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 17.5 to 18.5
24 to 26
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 74.9 to 81.8
45.6 to 52.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.0 to 2.5
Nickel (Ni), % 0 to 0.5
21 to 23
Niobium (Nb), % 0.3 to 1.0
0
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0.2 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.050
0 to 0.010