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EN 1.4655 Stainless Steel vs. EN 1.8838 Steel

Both EN 1.4655 stainless steel and EN 1.8838 steel are iron alloys. They have 71% 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 1.4655 stainless steel and the bottom bar is EN 1.8838 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 25
19
Fatigue Strength, MPa 320
290
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 460
380
Tensile Strength: Ultimate (UTS), MPa 720 to 730
610
Tensile Strength: Yield (Proof), MPa 450 to 480
430

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1050
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.7
Embodied Energy, MJ/kg 41
23
Embodied Water, L/kg 160
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 580
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 20
18

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.054
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 22 to 24
0 to 0.35
Copper (Cu), % 1.0 to 3.0
0 to 0.6
Iron (Fe), % 63.6 to 73.4
95 to 99.985
Manganese (Mn), % 0 to 2.0
0 to 1.8
Molybdenum (Mo), % 0.1 to 0.6
0 to 0.23
Nickel (Ni), % 3.5 to 5.5
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0.050 to 0.2
0 to 0.027
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.65
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.14