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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

Iron (Fe)Fe 71.5 to 75.5
Chromium (Cr)Cr 11 to 12.5
Nickel (Ni)Ni 10.2 to 11.3
Molybdenum (Mo)Mo 1.8 to 2.3
Aluminum (Al)Al 1.4 to 1.8
Titanium (Ti)Ti 0.2 to 0.5
Manganese (Mn)Mn 0 to 0.1
Silicon (Si)Si 0 to 0.1
Carbon (C)C 0 to 0.015
Phosphorus (P)P 0 to 0.010
Nitrogen (N)N 0 to 0.010
Sulfur (S)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