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EN 1.4516 Stainless Steel vs. EN 1.7779 Steel

Both EN 1.4516 stainless steel and EN 1.7779 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 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 1.4516 stainless steel and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
16
Fatigue Strength, MPa 210
430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 350
500
Tensile Strength: Ultimate (UTS), MPa 550
810
Tensile Strength: Yield (Proof), MPa 320
660

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 720
470
Melting Completion (Liquidus), °C 1450
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 2.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.8
Embodied Energy, MJ/kg 28
41
Embodied Water, L/kg 97
64

Common Calculations

PREN (Pitting Resistance) 12
5.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 20
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.080
0.17 to 0.23
Chromium (Cr), % 10.5 to 12.5
3.0 to 3.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 83.3 to 89
93.8 to 95.4
Manganese (Mn), % 0 to 1.5
0.3 to 0.5
Molybdenum (Mo), % 0
0.5 to 0.6
Nickel (Ni), % 0.5 to 1.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0.050 to 0.35
0
Vanadium (V), % 0
0.45 to 0.55