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Annealed N08800 Stainless Steel

Annealed N08800 stainless steel is N08800 stainless steel in the annealed condition. The graph bars on the material properties cards below compare annealed N08800 stainless steel to: wrought superaustenitic 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

200 GPa 29 x 106 psi

Elongation at Break

34 %

Fatigue Strength

180 MPa 27 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

77 GPa 11 x 106 psi

Shear Strength

400 MPa 58 x 103 psi

Tensile Strength: Ultimate (UTS)

600 MPa 88 x 103 psi

Tensile Strength: Yield (Proof)

230 MPa 34 x 103 psi

Thermal Properties

Curie Temperature

-120 °C -180 °F

Latent Heat of Fusion

300 J/g

Maximum Temperature: Corrosion

490 °C 920 °F

Maximum Temperature: Mechanical

1100 °C 2010 °F

Melting Completion (Liquidus)

1390 °C 2530 °F

Melting Onset (Solidus)

1360 °C 2470 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

12 W/m-K 6.6 BTU/h-ft-°F

Thermal Expansion

14 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

1.7 % IACS

Electrical Conductivity: Equal Weight (Specific)

1.9 % IACS

Otherwise Unclassified Properties

Base Metal Price

30 % relative

Density

8.0 g/cm3 500 lb/ft3

Embodied Carbon

5.3 kg CO2/kg material

Embodied Energy

76 MJ/kg 33 x 103 BTU/lb

Embodied Water

200 L/kg 24 gal/lb

Common Calculations

PREN (Pitting Resistance)

21

Resilience: Ultimate (Unit Rupture Work)

160 MJ/m3

Resilience: Unit (Modulus of Resilience)

140 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

21 points

Strength to Weight: Bending

20 points

Thermal Diffusivity

3.0 mm2/s

Thermal Shock Resistance

15 points

Alloy Composition

Iron (Fe)Fe 39.5 to 50.7
Nickel (Ni)Ni 30 to 35
Chromium (Cr)Cr 19 to 23
Manganese (Mn)Mn 0 to 1.5
Silicon (Si)Si 0 to 1.0
Aluminum (Al)Al 0.15 to 0.6
Titanium (Ti)Ti 0.15 to 0.6
Copper (Cu)Cu 0 to 0.75
Carbon (C)C 0 to 0.1
Phosphorus (P)P 0 to 0.045
Sulfur (S)S 0 to 0.015

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

Followup Questions

Further Reading

ASTM B514: Standard Specification for Welded Nickel-Iron-Chromium Alloy Pipe

ASTM B515: Standard Specification for Welded UNS N08120, UNS N08800, UNS N08810, and UNS N08811 Alloy Tubes

ASTM B409: Standard Specification for Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip

ASTM B407: Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

ASTM B564: Standard Specification for Nickel Alloy Forgings

EN 10095: Heat resisting steels and nickel alloys

ASM Specialty Handbook: Nickel, Cobalt, and Their Alloys, Joseph R. Davis (editor), 2000

Nickel Alloys, Ulrich Heubner (editor), 1998

ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels