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EN 1.4805 Stainless Steel vs. EN 1.4646 Stainless Steel

Both EN 1.4805 stainless steel and EN 1.4646 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4805 stainless steel and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0
34
Fatigue Strength, MPa 130
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 490
750
Tensile Strength: Yield (Proof), MPa 250
430

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1000
910
Melting Completion (Liquidus), °C 1390
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 26
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.7
2.8
Embodied Energy, MJ/kg 66
41
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 22
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 11
16

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.020 to 0.1
Chromium (Cr), % 19 to 23
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 44.9 to 56.8
59 to 67.3
Manganese (Mn), % 0 to 2.0
10.5 to 12.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 23 to 27
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015