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EN 1.8201 Steel vs. S40930 Stainless Steel

Both EN 1.8201 steel and S40930 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 32 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 1.8201 steel and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23
Fatigue Strength, MPa 310
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 390
270
Tensile Strength: Ultimate (UTS), MPa 630
430
Tensile Strength: Yield (Proof), MPa 450
190

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 450
710
Melting Completion (Liquidus), °C 1500
1450
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
8.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.3
Embodied Energy, MJ/kg 36
32
Embodied Water, L/kg 59
94

Common Calculations

PREN (Pitting Resistance) 5.7
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 530
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 1.9 to 2.6
10.5 to 11.7
Iron (Fe), % 93.6 to 96.2
84.7 to 89.4
Manganese (Mn), % 0.1 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.050 to 0.3
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0.020 to 0.080
0.080 to 0.75
Nitrogen (N), % 0 to 0.015
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.0050 to 0.060
0.050 to 0.2
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0