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EN 1.4905 Stainless Steel vs. EN 1.4959 Stainless Steel

Both EN 1.4905 stainless steel and EN 1.4959 stainless steel are iron alloys. They have 55% 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 1.4905 stainless steel and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
40
Fatigue Strength, MPa 330
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 460
430
Tensile Strength: Ultimate (UTS), MPa 740
630
Tensile Strength: Yield (Proof), MPa 510
190

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
510
Maximum Temperature: Mechanical, °C 660
1090
Melting Completion (Liquidus), °C 1480
1400
Melting Onset (Solidus), °C 1440
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.4
Embodied Energy, MJ/kg 40
76
Embodied Water, L/kg 90
200

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 680
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 7.0
3.2
Thermal Shock Resistance, points 25
15

Alloy Composition

Aluminum (Al), % 0 to 0.040
0.25 to 0.65
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0.050 to 0.1
Chromium (Cr), % 8.5 to 9.5
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 86.2 to 88.8
39.4 to 50.5
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
30 to 34
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0 to 0.030
Phosphorus (P), % 0 to 0.020
0 to 0.015
Silicon (Si), % 0.1 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0