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EN 1.8550 Steel vs. S43037 Stainless Steel

Both EN 1.8550 steel and S43037 stainless steel are iron alloys. They have 83% 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 1.8550 steel and the bottom bar is S43037 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
25
Fatigue Strength, MPa 470
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 600
260
Tensile Strength: Ultimate (UTS), MPa 1000
410
Tensile Strength: Yield (Proof), MPa 760
230

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
880
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.3
Embodied Energy, MJ/kg 23
32
Embodied Water, L/kg 67
120

Common Calculations

PREN (Pitting Resistance) 2.3
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
88
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
15
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 29
14

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
16 to 19
Iron (Fe), % 94.4 to 96.3
77.9 to 83.9
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.85 to 1.2
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0.1 to 1.0