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EN 1.8936 Steel vs. S40945 Stainless Steel

Both EN 1.8936 steel and S40945 stainless steel are iron alloys. They have 89% 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 1.8936 steel and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 250
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 370
270
Tensile Strength: Ultimate (UTS), MPa 600
430
Tensile Strength: Yield (Proof), MPa 370
230

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.2
Embodied Energy, MJ/kg 24
31
Embodied Water, L/kg 50
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
89
Resilience: Unit (Modulus of Resilience), kJ/m3 370
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 17
15

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 0 to 0.3
10.5 to 11.7
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 95.5 to 98.9
85.1 to 89.3
Manganese (Mn), % 1.0 to 1.7
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 1.0
0 to 0.5
Niobium (Nb), % 0 to 0.050
0.18 to 0.4
Nitrogen (N), % 0 to 0.020
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0.050 to 0.2
Vanadium (V), % 0 to 0.2
0