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EN 1.4959 Stainless Steel vs. EN 1.4525 Stainless Steel

Both EN 1.4959 stainless steel and EN 1.4525 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 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 1.4959 stainless steel and the bottom bar is EN 1.4525 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
5.6 to 13
Fatigue Strength, MPa 170
480 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 630
1030 to 1250
Tensile Strength: Yield (Proof), MPa 190
840 to 1120

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 510
430
Maximum Temperature: Mechanical, °C 1090
860
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
18
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.8
Embodied Energy, MJ/kg 76
39
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
68 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 96
1820 to 3230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
36 to 45
Strength to Weight: Bending, points 20
29 to 33
Thermal Diffusivity, mm2/s 3.2
4.7
Thermal Shock Resistance, points 15
34 to 41

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Carbon (C), % 0.050 to 0.1
0 to 0.070
Chromium (Cr), % 19 to 22
15 to 17
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
2.5 to 4.0
Iron (Fe), % 39.4 to 50.5
70.4 to 79
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 30 to 34
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.030
0 to 0.050
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 0.25 to 0.65
0