Within our 800 alloy family, we sell a unique nickel-iron-chromium alloy known as Incoloy® 800HT and Nickel Alloy 800HT pipe that is designed to provide optimal performance at higher temperatures. While similar in characteristics to many other 800 alloy pipes, 800HT offers the same chemical composition as Incoloy® 800H but with differing levels of carbon, aluminum, and titanium.

Alloy 800H/HT Pipe is available in Seamless or Welded from Size ranges 1/8" up to 26". Listed below are common sizes. Please contact for sizes not listed.
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Thickness (in)

O.D. (inches)

O.D. (mm)

Nominal Diameter (Standard) (inches)

Nominal Diameter (Metric) (mm)

Item #

Item Name

Thickness

Nominal Diameter (Standard)

Nominal Diameter (Metric)

N/A 1/2 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.083 in N/A 1/2 inches N/A 15 mm
N/A 3/4 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.083 in N/A 3/4 inches N/A 20 mm
N/A 1 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.109 in N/A 1 inches N/A 25 mm
N/A 1 1/4 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.109 in N/A 1 1/4 inches N/A 32 mm
N/A 1 1/2 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.109 in N/A 1 1/2 inches N/A 40 mm
N/A 2 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.109 in N/A 2 inches N/A 50 mm
N/A 2 1/2 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.120 in N/A 2 1/2 inches N/A 65 mm
N/A 3 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.120 in N/A 3 inches N/A 80 mm
N/A 3 1/2 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.120 in N/A 3 1/2 inches N/A 90 mm
N/A 4 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.120 in N/A 4 inches N/A 100 mm
N/A 5 Inch Sch. 10 Alloy 800H/HT Seamless or Welded Pipe N/A 0.134 in N/A 5 inches N/A 125 mm
N/A 3/8 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.091 in N/A 3/8 inches N/A 10 mm
N/A 1/2 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.109 in N/A 1/2 inches N/A 15 mm
N/A 3/4 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.113 in N/A 3/4 inches N/A 20 mm
N/A 1 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.133 in N/A 1 inches N/A 25 mm
N/A 1 1/4 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.140 in N/A 1 1/4 inches N/A 32 mm
N/A 1 1/2 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.145 in N/A 1 1/2 inches N/A 40 mm
N/A 2 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.154 in N/A 2 inches N/A 50 mm
N/A 2 1/2 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.203 in N/A 2 1/2 inches N/A 65 mm
N/A 3 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.216 in N/A 3 inches N/A 80 mm
N/A 3 1/2 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.226 in N/A 3 1/2 inches N/A 90 mm
N/A 4 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.237 in N/A 4 inches N/A 100 mm
N/A 5 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.258 in N/A 5 inches N/A 125 mm
N/A 6 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.280 in N/A 6 inches N/A 150 mm
N/A 8 Inch Sch. 40 Alloy 800H/HT Seamless or Welded Pipe N/A 0.322 in N/A 8 inches N/A 200 mm
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