Solution Annealed (+AT) 1.4606 Stainless Steel
EN 1.4606 +AT steel is EN 1.4606 stainless steel in the solution annealed (AT) condition. The graph bars on the material properties cards below compare EN 1.4606 +AT steel to: wrought precipitation-hardening stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
180
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
39 %
Fatigue Strength
240 MPa 35 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
410 MPa 60 x 103 psi
Tensile Strength: Ultimate (UTS)
600 MPa 87 x 103 psi
Tensile Strength: Yield (Proof)
280 MPa 41 x 103 psi
Thermal Properties
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
770 °C 1430 °F
Maximum Temperature: Mechanical
910 °C 1680 °F
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1380 °C 2520 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
14 W/m-K 8.1 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.2 % IACS
Otherwise Unclassified Properties
Base Metal Price
26 % relative
Density
7.9 g/cm3 500 lb/ft3
Embodied Carbon
6.0 kg CO2/kg material
Embodied Energy
87 MJ/kg 37 x 103 BTU/lb
Embodied Water
170 L/kg 20 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
190 MJ/m3
Resilience: Unit (Modulus of Resilience)
200 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
3.7 mm2/s
Thermal Shock Resistance
21 points
Alloy Composition
| Fe | 49.2 to 59 | |
| Ni | 24 to 27 | |
| Cr | 13 to 16 | |
| Ti | 1.9 to 2.3 | |
| Mn | 1.0 to 2.0 | |
| Mo | 1.0 to 1.5 | |
| Si | 0 to 1.0 | |
| V | 0.1 to 0.5 | |
| Al | 0 to 0.35 | |
| C | 0 to 0.080 | |
| P | 0 to 0.025 | |
| S | 0 to 0.015 | |
| B | 0.0010 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010