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EN 1.8516 Steel vs. S31655 Stainless Steel

Both EN 1.8516 steel and S31655 stainless steel are iron alloys. They have 72% 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 1.8516 steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
39
Fatigue Strength, MPa 570
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 660
490
Tensile Strength: Ultimate (UTS), MPa 1100
710
Tensile Strength: Yield (Proof), MPa 910
350

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 470
1010
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.3
Embodied Energy, MJ/kg 22
46
Embodied Water, L/kg 61
160

Common Calculations

PREN (Pitting Resistance) 5.2
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 2190
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 39
25
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 32
16

Alloy Composition

Carbon (C), % 0.2 to 0.27
0 to 0.030
Chromium (Cr), % 3.0 to 3.5
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 94.6 to 96.1
63.2 to 71.9
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.5 to 0.7
0.5 to 1.5
Nickel (Ni), % 0
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015