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EN 1.8509 Steel vs. S21600 Stainless Steel

Both EN 1.8509 steel and S21600 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.8509 steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 580
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 680
500
Tensile Strength: Ultimate (UTS), MPa 1130
710
Tensile Strength: Yield (Proof), MPa 940
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
3.6
Embodied Energy, MJ/kg 22
50
Embodied Water, L/kg 65
160

Common Calculations

PREN (Pitting Resistance) 2.6
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
270
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 31
23
Thermal Shock Resistance, points 33
15

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.080
Chromium (Cr), % 1.5 to 1.8
17.5 to 22
Iron (Fe), % 95.5 to 97.1
57.6 to 67.8
Manganese (Mn), % 0.4 to 0.7
7.5 to 9.0
Molybdenum (Mo), % 0.2 to 0.35
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030