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Annealed (+A) 1.4122 Stainless Steel

EN 1.4122 +A steel is EN 1.4122 stainless steel in the annealed condition. The graph bars on the material properties cards below compare EN 1.4122 +A steel to: wrought martensitic 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

240

Elastic (Young's, Tensile) Modulus

200 GPa 29 x 106 psi

Elongation at Break

14 %

Fatigue Strength

260 MPa 38 x 103 psi

Poisson's Ratio

0.28

Rockwell B Hardness

86

Shear Modulus

77 GPa 11 x 106 psi

Shear Strength

480 MPa 70 x 103 psi

Tensile Strength: Ultimate (UTS)

790 MPa 110 x 103 psi

Tensile Strength: Yield (Proof)

450 MPa 66 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

400 °C 750 °F

Maximum Temperature: Mechanical

870 °C 1590 °F

Melting Completion (Liquidus)

1440 °C 2630 °F

Melting Onset (Solidus)

1400 °C 2550 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

15 W/m-K 8.7 BTU/h-ft-°F

Thermal Expansion

10 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.5 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

7.7 g/cm3 480 lb/ft3

Embodied Carbon

2.4 kg CO2/kg material

Embodied Energy

33 MJ/kg 14 x 103 BTU/lb

Embodied Water

120 L/kg 14 gal/lb

Common Calculations

PREN (Pitting Resistance)

20

Resilience: Ultimate (Unit Rupture Work)

93 MJ/m3

Resilience: Unit (Modulus of Resilience)

520 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

28 points

Strength to Weight: Bending

25 points

Thermal Diffusivity

4.0 mm2/s

Thermal Shock Resistance

28 points

Alloy Composition

Iron (Fe)Fe 77.2 to 83.4
Chromium (Cr)Cr 15.5 to 17.5
Molybdenum (Mo)Mo 0.8 to 1.3
Manganese (Mn)Mn 0 to 1.5
Silicon (Si)Si 0 to 1.0
Nickel (Ni)Ni 0 to 1.0
Carbon (C)C 0.33 to 0.45
Phosphorus (P)P 0 to 0.040
Sulfur (S)S 0 to 0.015

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes

Welding Metallurgy, 2nd ed., Sindo Kou, 2003

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

Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005

EN 10088-1: Stainless steels - Part 1: List of stainless steels

Corrosion of Stainless Steels, A. John Sedriks, 1996

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010