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EN 1.6982 (GX3CrNi13-4) Cast Stainless Steel

EN 1.6982 stainless steel is a martensitic stainless steel formulated for casting. Cited properties are appropriate for the quenched and tempered condition. 1.6982 is the EN numeric designation for this material. GX3CrNi13-4 is the EN chemical designation.

The graph bars on the material properties cards below compare EN 1.6982 stainless steel to: cast 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

Elastic (Young's, Tensile) Modulus

190 GPa 28 x 106 psi

Elongation at Break

17 %

Fatigue Strength

350 MPa 50 x 103 psi

Impact Strength: V-Notched Charpy

56 J 41 ft-lb

Poisson's Ratio

0.28

Shear Modulus

76 GPa 11 x 106 psi

Tensile Strength: Ultimate (UTS)

800 MPa 120 x 103 psi

Tensile Strength: Yield (Proof)

570 MPa 82 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

390 °C 740 °F

Maximum Temperature: Mechanical

770 °C 1420 °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

25 W/m-K 14 BTU/h-ft-°F

Thermal Expansion

10 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.7 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.2 % IACS

Otherwise Unclassified Properties

Base Metal Price

10 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

2.4 kg CO2/kg material

Embodied Energy

33 MJ/kg 14 x 103 BTU/lb

Embodied Water

110 L/kg 13 gal/lb

Common Calculations

PREN (Pitting Resistance)

14

Resilience: Ultimate (Unit Rupture Work)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

820 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

6.6 mm2/s

Thermal Shock Resistance

29 points

Alloy Composition

Among cast stainless steels, the composition of EN 1.6982 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) 78.7 to 84.5
Chromium (Cr) 12 to 13.5
Nickel (Ni) 3.5 to 5.0
Manganese (Mn) 0 to 1.0
Silicon (Si) 0 to 1.0
Molybdenum (Mo) 0 to 0.7
Carbon (C) 0 to 0.050
Phosphorus (P) 0 to 0.035
Sulfur (S) 0 to 0.015

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

Followup Questions

Similar Alloys

Further Reading

ISO 4991: Steel castings for pressure purposes

EN 10293: Steel castings - Steel castings for general engineering uses

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

Corrosion of Stainless Steels, A. John Sedriks, 1996

Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015