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EN 1.8888 Steel vs. EN 1.4658 Stainless Steel

Both EN 1.8888 steel and EN 1.4658 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16
28
Fatigue Strength, MPa 470
530
Impact Strength: V-Notched Charpy, J 110
110
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 510
580
Tensile Strength: Ultimate (UTS), MPa 830
900
Tensile Strength: Yield (Proof), MPa 720
730

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.5
Embodied Energy, MJ/kg 26
61
Embodied Water, L/kg 54
200

Common Calculations

PREN (Pitting Resistance) 2.0
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
1280
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
32
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 11
4.3
Thermal Shock Resistance, points 24
24

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 0 to 1.5
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0 to 0.3
0 to 1.0
Iron (Fe), % 91.9 to 100
50.9 to 63.7
Manganese (Mn), % 0 to 1.7
0 to 1.5
Molybdenum (Mo), % 0 to 0.7
4.0 to 5.0
Nickel (Ni), % 0 to 2.5
5.5 to 9.5
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0.3 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0