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EN 1.4945 Stainless Steel vs. S66286 Stainless Steel

Both EN 1.4945 stainless steel and S66286 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19 to 34
17 to 40
Fatigue Strength, MPa 230 to 350
240 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 430 to 460
420 to 630
Tensile Strength: Ultimate (UTS), MPa 640 to 740
620 to 1020
Tensile Strength: Yield (Proof), MPa 290 to 550
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
780
Maximum Temperature: Mechanical, °C 920
920
Melting Completion (Liquidus), °C 1490
1430
Melting Onset (Solidus), °C 1440
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
26
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.0
6.0
Embodied Energy, MJ/kg 73
87
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 23
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
190 to 1150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
22 to 36
Strength to Weight: Bending, points 20 to 22
20 to 28
Thermal Diffusivity, mm2/s 3.7
4.0
Thermal Shock Resistance, points 14 to 16
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.040 to 0.1
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
13.5 to 16
Iron (Fe), % 57.9 to 65.7
49.1 to 59.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 15.5 to 17.5
24 to 27
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0
0.1 to 0.5