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EN 1.4986 Stainless Steel vs. EN 1.4634 Stainless Steel

Both EN 1.4986 stainless steel and EN 1.4634 stainless steel are iron alloys. They have 82% 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 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
21
Fatigue Strength, MPa 350
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 460
340
Tensile Strength: Ultimate (UTS), MPa 750
540
Tensile Strength: Yield (Proof), MPa 560
280

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
500
Maximum Temperature: Mechanical, °C 940
900
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 25
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.8
2.9
Embodied Energy, MJ/kg 67
42
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 22
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
93
Resilience: Unit (Modulus of Resilience), kJ/m3 790
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 4.0
5.8
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0
0.2 to 1.5
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
17.5 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 59.4 to 66.6
74.9 to 81.8
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
0 to 0.5
Nickel (Ni), % 15.5 to 17.5
0 to 0.5
Niobium (Nb), % 0.4 to 1.2
0.3 to 1.0
Phosphorus (P), % 0 to 0.045
0 to 0.050
Silicon (Si), % 0.3 to 0.6
0.2 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.050