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EN 1.4310 (X10CrNi18-8) Stainless Steel

EN 1.4310 stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. 1.4310 is the EN numeric designation for this material. X10CrNi18-8 is the EN chemical designation.

It can have a moderately high tensile strength among wrought austenitic stainless steels. In addition, it has a moderately low base cost and a moderately low embodied energy.

The properties of EN 1.4310 stainless steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.4310 stainless steel to: wrought austenitic 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

200 to 270

Elastic (Young's, Tensile) Modulus

200 GPa 29 x 106 psi

Elongation at Break

14 to 45 %

Fatigue Strength

240 to 330 MPa 35 to 47 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

77 GPa 11 x 106 psi

Shear Strength

510 to 550 MPa 74 to 79 x 103 psi

Tensile Strength: Ultimate (UTS)

730 to 900 MPa 110 to 130 x 103 psi

Tensile Strength: Yield (Proof)

260 to 570 MPa 38 to 83 x 103 psi

Thermal Properties

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

410 °C 770 °F

Maximum Temperature: Mechanical

910 °C 1680 °F

Melting Completion (Liquidus)

1420 °C 2590 °F

Melting Onset (Solidus)

1380 °C 2520 °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

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % IACS

Otherwise Unclassified Properties

Base Metal Price

14 % relative

Density

7.8 g/cm3 480 lb/ft3

Embodied Carbon

2.9 kg CO2/kg material

Embodied Energy

42 MJ/kg 18 x 103 BTU/lb

Embodied Water

140 L/kg 16 gal/lb

Common Calculations

PREN (Pitting Resistance)

20

Resilience: Ultimate (Unit Rupture Work)

110 to 260 MJ/m3

Resilience: Unit (Modulus of Resilience)

170 to 830 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

26 to 32 points

Strength to Weight: Bending

23 to 27 points

Thermal Diffusivity

4.0 mm2/s

Thermal Shock Resistance

15 to 18 points

Alloy Composition

Among wrought stainless steels, the composition of EN 1.4310 stainless steel is notable for containing comparatively high amounts of nickel (Ni) and chromium (Cr). Nickel is primarily used to achieve a specific microstructure. In addition, it has a beneficial effect on mechanical properties and certain types of corrosion. Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance.

Iron (Fe) 66.4 to 78
Chromium (Cr) 16 to 19
Nickel (Ni) 6.0 to 9.5
Manganese (Mn) 0 to 2.0
Silicon (Si) 0 to 2.0
Molybdenum (Mo) 0 to 0.8
Carbon (C) 0.050 to 0.15
Nitrogen (N) 0 to 0.1
Phosphorus (P) 0 to 0.045
Sulfur (S) 0 to 0.015

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

Followup Questions

Similar Alloys

Further Reading

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

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

Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002

Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984

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