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EN 1.5663 Steel vs. S40945 Stainless Steel

Both EN 1.5663 steel and S40945 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.5663 steel and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 450
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 470
270
Tensile Strength: Ultimate (UTS), MPa 750
430
Tensile Strength: Yield (Proof), MPa 660
230

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
8.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.2
Embodied Energy, MJ/kg 31
31
Embodied Water, L/kg 63
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
89
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
15
Strength to Weight: Bending, points 23
16
Thermal Shock Resistance, points 22
15

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Iron (Fe), % 88.6 to 91.2
85.1 to 89.3
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 8.5 to 10
0 to 0.5
Niobium (Nb), % 0
0.18 to 0.4
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0
0.050 to 0.2
Vanadium (V), % 0 to 0.010
0