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EN 1.4590 Stainless Steel vs. SAE-AISI 9260 Steel

Both EN 1.4590 stainless steel and SAE-AISI 9260 steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4590 stainless steel and the bottom bar is SAE-AISI 9260 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 26
21
Fatigue Strength, MPa 190
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 310
420
Tensile Strength: Ultimate (UTS), MPa 480
660
Tensile Strength: Yield (Proof), MPa 270
380

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
45
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.5
1.5
Embodied Energy, MJ/kg 37
20
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 7.0
12
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0 to 0.030
0.56 to 0.64
Chromium (Cr), % 16 to 17.5
0
Iron (Fe), % 79.7 to 83.7
96.1 to 96.9
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Niobium (Nb), % 0.35 to 0.55
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.8 to 2.2
Sulfur (S), % 0 to 0.015
0 to 0.040
Zirconium (Zr), % 0 to 0.15
0