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EN 1.8888 Steel vs. EN 1.4401 Stainless Steel

Both EN 1.8888 steel and EN 1.4401 stainless steel are iron alloys. They have 71% 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 1.4401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
14 to 40
Fatigue Strength, MPa 470
200 to 320
Impact Strength: V-Notched Charpy, J 110
91 to 94
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 510
410 to 550
Tensile Strength: Ultimate (UTS), MPa 830
600 to 900
Tensile Strength: Yield (Proof), MPa 720
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 420
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
15
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
3.8
Embodied Energy, MJ/kg 26
52
Embodied Water, L/kg 54
150

Common Calculations

PREN (Pitting Resistance) 2.0
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
130 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
21 to 32
Strength to Weight: Bending, points 25
20 to 26
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 24
13 to 20

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.070
Chromium (Cr), % 0 to 1.5
16.5 to 18.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.9 to 100
62.8 to 71.5
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 13
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