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EN 1.4959 Stainless Steel vs. AISI 445 Stainless Steel

Both EN 1.4959 stainless steel and AISI 445 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 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 1.4959 stainless steel and the bottom bar is AISI 445 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
25
Fatigue Strength, MPa 170
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 430
310
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 510
480
Maximum Temperature: Mechanical, °C 1090
950
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.4
2.6
Embodied Energy, MJ/kg 76
38
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 21
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
98
Resilience: Unit (Modulus of Resilience), kJ/m3 96
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.2
5.6
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Carbon (C), % 0.050 to 0.1
0 to 0.020
Chromium (Cr), % 19 to 22
19 to 21
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0.3 to 0.6
Iron (Fe), % 39.4 to 50.5
74.9 to 80.7
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 30 to 34
0 to 0.6
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0 to 0.030
0 to 0.030
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.012
Titanium (Ti), % 0.25 to 0.65
0