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EN 1.4470 Stainless Steel vs. EN 1.4859 Stainless Steel

Both EN 1.4470 stainless steel and EN 1.4859 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 1.4470 stainless steel and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 320
140
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 680
490
Tensile Strength: Yield (Proof), MPa 480
210

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 430
560
Maximum Temperature: Mechanical, °C 1060
1050
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 18
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.6
6.2
Embodied Energy, MJ/kg 49
88
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 34
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
91
Resilience: Unit (Modulus of Resilience), kJ/m3 570
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 4.8
3.4
Thermal Shock Resistance, points 18
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 21 to 23
19 to 21
Iron (Fe), % 63.7 to 71.9
40.3 to 49
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.5
Nickel (Ni), % 4.5 to 6.5
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0.5 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.030