Alloy 800HT/N08811

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• Material:	Alloy 800HT/N08811
  Other Brands:	Alloy 800HT, N08811
  Source Stock:	Customized
  Supplier:	Shanghai Hite Special Alloy Co., Ltd.
  Contacts:	Mr.KayDuan
  Email:	sales02@hitealloy.com

• Alloy 800HT/N08811 Details

  
  
  

  Alloy800HT is a high-temperature alloy composed of elements such as nickel, iron, chromium, titanium, etc. It has good oxidation resistance, corrosion resistance, high temperature resistance, thermal creep resistance, quenching and work hardening properties, and is widely used in high-temperature and high-pressure equipment in fields such as petroleum, chemical, energy, and power.

  
  

  Alloy 800HT chemical composition under ASTM B408-2016 standard:

  Grade	Chemical composition,%
  	Ni	Cr	Fe	Mn	C	Cu
  alloy N08810	30.0-35.0	19.0-23.0	≥39.5	≤1.5	0.05-0.1	≤0.75
  alloy N08810	30.0-35.0	19.0-23.0	≥39.5	≤1.5	0.06-0.1	≤0.75
  Grade	Chemical composition,%
  	Si	S	Al	Ti	Al+Ti
  alloy N08810	≤1.0	≤0.015	0.15-0.6	0.15-0.6	/
  alloy N08811	≤1.0	≤0.015	0.15-0.6	0.15-0.6	0.85-1.2

  
  

  Alloy 800HT main produce standards:

  Wire,Rod, Bar	Forging	Plate/Sheet/Strip	Seamless Tube/Pipe
  ASTM B408	ASTM B564	ASTM B409 ASME	ASTM B163 ASME SB163 ASTM B407 ASME SB407
  ASME SB408	ASME SB564	SB409  AMS5871

  
  

  Corrosion resistance of alloy 800HT:

  The alloy has good corrosion resistance to nitric acid, organic acids, oxidizing and non oxidizing salts except halogenated salts. Especially, it is resistant to high-temperature corrosion and has good resistance to carburization. When the alloy is heated between 593 and 816, intergranular corrosion occurs, which has good stress corrosion resistance. However, long-term aging at 650 degrees Celsius may significantly reduce the stress corrosion sensitivity of the alloy. The stress resistance in NaOH and NACL depends on concentration and level.

  
  

  Application fields of alloy 800HT:

  It has excellent stress corrosion resistance in water containing chloride and low concentration of NAOH. Widely used to replace 18-8 austenitic steel in manufacturing stress corrosion resistant equipment, used in pressurized water reactor evaporators, high-temperature gas cooled reactors, sodium cooled fast reactor heat exchangers, and superheated steam pipelines in the power industry. Used for various heat exchange equipment in nitric acid coolers, acetic anhydride cracking tubes, and the chemical industry.