Mechanical Tubing & OCTG

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)

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.

Chemical composition

UNS N08825

 
 CSiMnPSCrNiMoCuTiAlFe
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

 
 CSiMnPSCrNiMoCuFe
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”∅

Primarily manufactured in:

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