Incoloy 800 is a solid solution strengthened alloy of nickel, chromium, and iron with small additions of aluminum and titanium. ASTM B163 B407 ASME SB163 SB407 N08800 Incoloy 800 Seamless Tubing is
particularly useful for high-temperature equipment in the petrochemical industry because the alloy doesn't form the embrittling sigma phase after long time of exposure at 1200°F (649°C). Excellent
resistance to chloride stress-corrosion cracking is another important feature of alloy 800 pipe, alloy 800 tube.
INCOLOY 800/N08800 NICKEL ALLOY PIPE/TUBE EQUIVALENT SPECIFICATION
Country Body Grade
USA UNS N08800
France AFTER Z8NC 32.21
GB BS NA 15
Germany DIN 1.4876
INCOLOY 800 PIPE/TUBE PHYSICAL PROPERTIES
Properties Metric Units
Density 7,940 kg /m3 @ 20℃
Melting Range 1357-1385. ℃
Electrical Resistivity 0.989 micro-ohm. m @ 20℃
Specific Heat 460y / kg. ℃@ 20℃
Mean Coefficient of Expansion 14. 4x10 / ℃ @ 20℃
Thermal Conductivity 11. 5W / m. @ 20℃
Curie Temperature -115℃
Modulus of Elasticity
Tension 196.5 Gpa @ 20℃
Torsion 73.4 Gpa @ 20℃
Poisson's Ratio 0 . 339 @ 20℃
UNS N08800/ALLOY 800 SEAMLESS TUBE CHEMICAL COMPOSITION
Element Incoloy 800 Incoloy 800H Incoloy 800HT
Nicke 30.00-35.00 30.00-35.00 30.00-35.00
Chromium 19.00-23.00 19.00-23.00 19.00-23.00
Iron 39.50 min 39.50 min 39.50 min
Carbon 0.10 max 0.10 max 0.10 max
Aluminum 0.15-0.60 0.15-0.60 0.25-0.60
Titanium 0.15-0.60 0.15-0.60 0.25-0.60
Aluminum + Titanium 0.30-1.20 0.30-1.20 0.30-1.20
ASTM Grain Size Not Specified 5 or Coarser
INCOLOY ALLOY 800 SEAMLESS TUBE MECHANICAL PROPERTIES
ASTM B407 - Seamless Pipe&Tube Yield Strength Tensile Strength Elongation
Mpa Mpa %
Incoloy 800, 800H, 800HT Hot Finished Annealed 170 450 30
Incoloy 800 Cold Worked. Annealed 205 520 30
INCOLOY 800/N08800 NICKEL ALLOY PIPE/TUBE HIGHLIGHTS
Incoloy 800 pipe, incoloy 800 tubes are designed to resist Oxidation and Carburization. The general corrosion resistance is excellent. Incoloy alloy 800 pipe is a widely used material of
construction for equipment that must have high strength and oxidation resistance, carburization, and other harmful effects of high-temperature exposure.
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