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EN 1.4634 Stainless Steel vs. EN 1.4520 Stainless Steel

Both EN 1.4634 stainless steel and EN 1.4520 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
26
Fatigue Strength, MPa 180
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 340
310
Tensile Strength: Ultimate (UTS), MPa 540
480
Tensile Strength: Yield (Proof), MPa 280
220

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 500
500
Maximum Temperature: Mechanical, °C 900
870
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
20
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.2
Embodied Energy, MJ/kg 42
32
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 19
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
100
Resilience: Unit (Modulus of Resilience), kJ/m3 200
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 5.8
5.4
Thermal Shock Resistance, points 19
17

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 17.5 to 18.5
16 to 18
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 74.9 to 81.8
80.1 to 83.9
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.3 to 1.0
0
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0.2 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8