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EN 1.8838 Steel vs. EN 1.4640 Stainless Steel

Both EN 1.8838 steel and EN 1.4640 stainless steel are iron alloys. They have 73% 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 1.8838 steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
51
Fatigue Strength, MPa 290
230 to 250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 380
440 to 460
Tensile Strength: Ultimate (UTS), MPa 610
620 to 650
Tensile Strength: Yield (Proof), MPa 430
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
930
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
40
Embodied Water, L/kg 50
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 500
150 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
22 to 23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 18
14 to 15

Alloy Composition

Aluminum (Al), % 0.015 to 0.054
0
Carbon (C), % 0 to 0.18
0.030 to 0.080
Chromium (Cr), % 0 to 0.35
18 to 19
Copper (Cu), % 0 to 0.6
1.3 to 2.0
Iron (Fe), % 95 to 99.985
67.4 to 73.6
Manganese (Mn), % 0 to 1.8
1.5 to 4.0
Molybdenum (Mo), % 0 to 0.23
0
Nickel (Ni), % 0 to 0.85
5.5 to 6.9
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.027
0.030 to 0.11
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.65
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.14
0