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S40930 Stainless Steel vs. EN 1.8838 Steel

Both S40930 stainless steel and EN 1.8838 steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 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 S40930 stainless steel and the bottom bar is EN 1.8838 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
19
Fatigue Strength, MPa 130
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 270
380
Tensile Strength: Ultimate (UTS), MPa 430
610
Tensile Strength: Yield (Proof), MPa 190
430

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
44
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.7
Embodied Energy, MJ/kg 32
23
Embodied Water, L/kg 94
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
100
Resilience: Unit (Modulus of Resilience), kJ/m3 94
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 16
18

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.054
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 10.5 to 11.7
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 84.7 to 89.4
95 to 99.985
Manganese (Mn), % 0 to 1.0
0 to 1.8
Molybdenum (Mo), % 0
0 to 0.23
Nickel (Ni), % 0 to 0.5
0 to 0.85
Niobium (Nb), % 0.080 to 0.75
0 to 0.060
Nitrogen (N), % 0 to 0.030
0 to 0.027
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.65
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.050 to 0.2
0 to 0.060
Vanadium (V), % 0
0 to 0.14