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EN 1.4109 Stainless Steel vs. EN 1.8516 Steel

Both EN 1.4109 stainless steel and EN 1.8516 steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4109 stainless steel and the bottom bar is EN 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
330
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19
11
Fatigue Strength, MPa 270
570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 480
660
Tensile Strength: Ultimate (UTS), MPa 770
1100
Tensile Strength: Yield (Proof), MPa 420
910

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 820
470
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
3.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 30
22
Embodied Water, L/kg 110
61

Common Calculations

PREN (Pitting Resistance) 17
5.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 460
2190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
39
Strength to Weight: Bending, points 24
30
Thermal Diffusivity, mm2/s 8.1
10
Thermal Shock Resistance, points 28
32

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.2 to 0.27
Chromium (Cr), % 14 to 16
3.0 to 3.5
Iron (Fe), % 80.7 to 85
94.6 to 96.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 0.8
0.5 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035