Combining high strength properties with ease of fabrication, Nickel Alloy 625 and Inconel® 625 is a popular nickel-chromium alloy pipe used in nuclear power production, marine engineering, and aerospace. With the addition of molybdenum and niobium, Nickel Alloy 625 pipe features enhanced strength characteristics. It offers outstanding thermal fatigue strength over a wide range of temperatures ranging from cryogenic to 1800 ºF (982 ºC). Nickel Alloy 625 is also resistant to oxidation as well as other corrosive elements. Nickel Alloy 625 is made with a minimum of 58% Nickel along with 20-23% Cr, 8-10% Mo, and 3.15-4.15% Nb. It also contains a maximum of 5% Fe, 1% Co, 0.50% Si, 0.15% P, and 0.15% S.

Alloy 625 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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Item #

Item Name

Thickness

Nominal Diameter (Standard)

Nominal Diameter (Metric)

A625-10-500-840 N/A 1/2 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 1/2 inches N/A 15 mm
A625-10-750-1050 N/A 3/4 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 3/4 inches N/A 20 mm
A625-10-000-1315 N/A 1 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 1 inches N/A 25 mm
A625-10-1250-1660 N/A 1 1/4 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 1 1/4 inches N/A 32 mm
A625-10-1500-1900 N/A 1 1/2 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 1 1/2 inches N/A 40 mm
A625-10-2000-2375 N/A 2 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 2 inches N/A 50 mm
A625-10-2500-2875 N/A 2 1/2 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 2 1/2 inches N/A 65 mm
A625-10-3000-3500 N/A 3 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 3 inches N/A 80 mm
A625-10-3500-4000 N/A 3 1/2 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 3 1/2 inches N/A 90 mm
A625-10-4000-4500 N/A 4 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 4 inches N/A 100 mm
A625-10-5000-5563 N/A 5 Inch Sch. 10 Alloy 625 Seamless or Welded Pipe N/A Sch. 10 N/A 5 inches N/A 125 mm
A625-40-375-675 N/A 3/8 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 3/8 inches N/A 10 mm
A625-40-500-840 N/A 1/2 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 1/2 inches N/A 15 mm
A625-40-750-1050 N/A 3/4 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 3/4 inches N/A 20 mm
A625-40-000-1315 N/A 1 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 1 inches N/A 25 mm
A625-40-1250-1660 N/A 1 1/4 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 1 1/4 inches N/A 32 mm
A625-40-1500-1900 N/A 1 1/2 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 1 1/2 inches N/A 40 mm
A625-40-2000-2375 N/A 2 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 2 inches N/A 50 mm
A625-40-2500-2875 N/A 2 1/2 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 2 1/2 inches N/A 65 mm
A625-40-3000-3500 N/A 3 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 3 inches N/A 80 mm
A625-40-3500-4000 N/A 3 1/2 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 3 1/2 inches N/A 90 mm
A625-40-4000-4500 N/A 4 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 4 inches N/A 100 mm
A625-40-5000-5563 N/A 5 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 5 inches N/A 125 mm
A625-40-6000-6625 N/A 6 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 6 inches N/A 150 mm
A625-40-8000-8625 N/A 8 Inch Sch. 40 Alloy 625 Seamless or Welded Pipe N/A Sch. 40 N/A 8 inches N/A 200 mm
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