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S20910 Stainless Steel vs. EN 1.8509 Steel

Both S20910 stainless steel and EN 1.8509 steel are iron alloys. They have 60% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 39
11
Fatigue Strength, MPa 310 to 460
580
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 500 to 570
680
Tensile Strength: Ultimate (UTS), MPa 780 to 940
1130
Tensile Strength: Yield (Proof), MPa 430 to 810
940

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1080
440
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
39
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.6
Embodied Energy, MJ/kg 68
22
Embodied Water, L/kg 180
65

Common Calculations

PREN (Pitting Resistance) 34
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
120
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
2340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 33
40
Strength to Weight: Bending, points 24 to 27
31
Thermal Diffusivity, mm2/s 3.6
10
Thermal Shock Resistance, points 17 to 21
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.060
0.38 to 0.45
Chromium (Cr), % 20.5 to 23.5
1.5 to 1.8
Iron (Fe), % 52.1 to 62.1
95.5 to 97.1
Manganese (Mn), % 4.0 to 6.0
0.4 to 0.7
Molybdenum (Mo), % 1.5 to 3.0
0.2 to 0.35
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0.1 to 0.3
0