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EN 1.8888 Steel vs. EN 1.4578 Stainless Steel

Both EN 1.8888 steel and EN 1.4578 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 33 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 1.8888 steel and the bottom bar is EN 1.4578 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
51
Fatigue Strength, MPa 470
200
Impact Strength: V-Notched Charpy, J 110
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510
400
Tensile Strength: Ultimate (UTS), MPa 830
550
Tensile Strength: Yield (Proof), MPa 720
200

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 420
930
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
3.7
Embodied Energy, MJ/kg 26
51
Embodied Water, L/kg 54
160

Common Calculations

PREN (Pitting Resistance) 2.0
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 24
12

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.040
Chromium (Cr), % 0 to 1.5
16.5 to 17.5
Copper (Cu), % 0 to 0.3
3.0 to 3.5
Iron (Fe), % 91.9 to 100
62.3 to 68.5
Manganese (Mn), % 0 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.7
2.0 to 2.5
Nickel (Ni), % 0 to 2.5
10 to 11
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0