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EN 1.4959 Stainless Steel vs. EN 1.5525 Steel

Both EN 1.4959 stainless steel and EN 1.5525 steel are iron alloys. They have 46% of their average alloy composition in common. There are 30 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 EN 1.4959 stainless steel and the bottom bar is EN 1.5525 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
11 to 21
Fatigue Strength, MPa 170
210 to 310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
310 to 350
Tensile Strength: Ultimate (UTS), MPa 630
440 to 1440
Tensile Strength: Yield (Proof), MPa 190
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
50
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 76
19
Embodied Water, L/kg 200
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
44 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 96
240 to 640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
16 to 51
Strength to Weight: Bending, points 20
16 to 36
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 15
13 to 42

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.050 to 0.1
0.18 to 0.23
Chromium (Cr), % 19 to 22
0 to 0.3
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 39.4 to 50.5
97.7 to 98.9
Manganese (Mn), % 0 to 1.5
0.9 to 1.2
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 0.25 to 0.65
0