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EN 1.4986 Stainless Steel vs. EN 1.8959 Steel

Both EN 1.4986 stainless steel and EN 1.8959 steel are iron alloys. They have 65% 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 1.4986 stainless steel and the bottom bar is EN 1.8959 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
16
Fatigue Strength, MPa 350
220
Impact Strength: V-Notched Charpy, J 57
30
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 460
350
Tensile Strength: Ultimate (UTS), MPa 750
570
Tensile Strength: Yield (Proof), MPa 560
340

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
420
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.6
Embodied Energy, MJ/kg 67
21
Embodied Water, L/kg 150
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
78
Resilience: Unit (Modulus of Resilience), kJ/m3 790
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 16
17

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.19
Chromium (Cr), % 15.5 to 17.5
0.35 to 0.85
Copper (Cu), % 0
0.2 to 0.6
Iron (Fe), % 59.4 to 66.6
94.9 to 99
Manganese (Mn), % 0 to 1.5
0.45 to 1.6
Molybdenum (Mo), % 1.6 to 2.0
0 to 0.35
Nickel (Ni), % 15.5 to 17.5
0 to 0.7
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.040
Zirconium (Zr), % 0
0 to 0.17