Alloy 825 & Alloy 28 Tube

UNS N08825 : ASTM B423 (VO2.04) UNS N080287 : ASTM B668 (VO2.04)
Trade Name Incoloy 825 (1), Sanicro 28 (6)

Chemical composition

UNS N08825

C Si Mn P S Cr Ni Mo Cu Ti Al Fe
Min 19.50 38.00 2.50 1.50 0.60 22.00
Max 0.05 0.50 1.00 0.030 23.50 46.00 3.50 3.00 1.20 0.20 0.00

UNS N08028

C Si Mn P S Cr Ni Mo Cu Fe
Min 26.00 30.00 3.00 0.06 0.00
Max 0.03 1.00 2.50 0.030 0.030 28.00 34.00 4.00 1.40 0.00

Mechanical properties

Condition: UNS N08825 Annealed

U.T.S 85 KSI Min
0.2% Proof Stress 35 KSI Min
Elongation 30 %

Condition: UNS N08028 Annealed

U.T.S 73 KSI Min
0.2% Proof Stress 31 KSI Min
Elongation 40 %

Condition: UNS N08825 Cold Worked

U.T.S 125 KSI Min
0.2% Proof Stress 100 KSI Min
Elongation 5 %

Condition: UNS N08028 Cold Worked

U.T.S 120 KSI Min
0.2% Proof Stress 90 KSI Min
Elongation 5 %
Size range: 2.5”∅ - 7.625”∅

General scope

These nickel chromium alloys combine excellent corrosion resistance with a wide range of mechanical strengths. They are used extensively within chemical processing plants and down hole tubulars in deep, sour gas wells.

Primarily manufactured in:

  • Dubai, UAE
  • Edmonton, Canada
  • Houston, Texas
  • Sheffield, England
  • Singapore

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