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EN 1.8509 Steel vs. S39277 Stainless Steel

Both EN 1.8509 steel and S39277 stainless steel are iron alloys. They have 63% 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 S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 580
480
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 680
600
Tensile Strength: Ultimate (UTS), MPa 1130
930
Tensile Strength: Yield (Proof), MPa 940
660

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.2
Embodied Energy, MJ/kg 22
59
Embodied Water, L/kg 65
180

Common Calculations

PREN (Pitting Resistance) 2.6
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
1070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
33
Strength to Weight: Bending, points 31
27
Thermal Diffusivity, mm2/s 10
4.2
Thermal Shock Resistance, points 33
26

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.025
Chromium (Cr), % 1.5 to 1.8
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 95.5 to 97.1
56.8 to 64.3
Manganese (Mn), % 0.4 to 0.7
0 to 0.8
Molybdenum (Mo), % 0.2 to 0.35
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2