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EN 1.8509 Steel vs. S44535 Stainless Steel

Both EN 1.8509 steel and S44535 stainless steel are iron alloys. They have 79% 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 1.8509 steel and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 580
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 680
290
Tensile Strength: Ultimate (UTS), MPa 1130
450
Tensile Strength: Yield (Proof), MPa 940
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
1000
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.4
Embodied Energy, MJ/kg 22
34
Embodied Water, L/kg 65
140

Common Calculations

PREN (Pitting Resistance) 2.6
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
16
Strength to Weight: Bending, points 31
17
Thermal Diffusivity, mm2/s 10
5.6
Thermal Shock Resistance, points 33
15

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0 to 0.5
Carbon (C), % 0.38 to 0.45
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 95.5 to 97.1
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0.4 to 0.7
0.3 to 0.8
Molybdenum (Mo), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.050
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.020
Titanium (Ti), % 0
0.030 to 0.2