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EN 1.4578 Stainless Steel vs. EN 1.4935 Stainless Steel

Both EN 1.4578 stainless steel and EN 1.4935 stainless steel are iron alloys. They have 80% 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 1.4578 stainless steel and the bottom bar is EN 1.4935 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
16 to 18
Fatigue Strength, MPa 200
350 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 400
480 to 540
Tensile Strength: Ultimate (UTS), MPa 550
780 to 880
Tensile Strength: Yield (Proof), MPa 200
570 to 670

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 410
380
Maximum Temperature: Mechanical, °C 930
740
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
24
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.7
2.9
Embodied Energy, MJ/kg 51
42
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 25
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
130
Resilience: Unit (Modulus of Resilience), kJ/m3 100
830 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
28 to 31
Strength to Weight: Bending, points 19
24 to 26
Thermal Diffusivity, mm2/s 3.9
6.5
Thermal Shock Resistance, points 12
27 to 30

Alloy Composition

Carbon (C), % 0 to 0.040
0.17 to 0.24
Chromium (Cr), % 16.5 to 17.5
11 to 12.5
Copper (Cu), % 3.0 to 3.5
0
Iron (Fe), % 62.3 to 68.5
83 to 86.7
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 2.0 to 2.5
0.8 to 1.2
Nickel (Ni), % 10 to 11
0.3 to 0.8
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0.2 to 0.35