Solution Annealed (+AT) 1.4612 Stainless Steel
EN 1.4612 +AT steel is EN 1.4612 stainless steel in the solution annealed (AT) condition. The graph bars on the material properties cards below compare EN 1.4612 +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
290
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Poisson's Ratio
0.28
Shear Modulus
76 GPa 11 x 106 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
450 °C 840 °F
Maximum Temperature: Mechanical
790 °C 1450 °F
Melting Completion (Liquidus)
1450 °C 2640 °F
Melting Onset (Solidus)
1400 °C 2560 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Expansion
11 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
16 % relative
Density
7.9 g/cm3 490 lb/ft3
Embodied Carbon
3.6 kg CO2/kg material
Embodied Energy
50 MJ/kg 21 x 103 BTU/lb
Embodied Water
140 L/kg 17 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
190 to 210 MJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
60 to 65 points
Strength to Weight: Bending
40 to 43 points
Thermal Shock Resistance
58 to 63 points
Alloy Composition
| Fe | 71.5 to 75.5 | |
| Cr | 11 to 12.5 | |
| Ni | 10.2 to 11.3 | |
| Mo | 1.8 to 2.3 | |
| Al | 1.4 to 1.8 | |
| Ti | 0.2 to 0.5 | |
| Mn | 0 to 0.1 | |
| Si | 0 to 0.1 | |
| C | 0 to 0.015 | |
| P | 0 to 0.010 | |
| N | 0 to 0.010 | |
| S | 0 to 0.0050 |
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
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010