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EN 1.4986 Stainless Steel vs. EN 1.4658 Stainless Steel

Both EN 1.4986 stainless steel and EN 1.4658 stainless steel are iron alloys. They have 84% 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 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 18
28
Fatigue Strength, MPa 350
530
Impact Strength: V-Notched Charpy, J 57
110
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 460
580
Tensile Strength: Ultimate (UTS), MPa 750
900
Tensile Strength: Yield (Proof), MPa 560
730

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
460
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
4.5
Embodied Energy, MJ/kg 67
61
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 22
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 790
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
32
Strength to Weight: Bending, points 23
26
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
24

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 59.4 to 66.6
50.9 to 63.7
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 1.6 to 2.0
4.0 to 5.0
Nickel (Ni), % 15.5 to 17.5
5.5 to 9.5
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0.3 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010