F22 NQT - UNS K21590

 

F22 is a Low Alloy Steel which meets NACE MR0175 requirements for sour service environments whwn heat treated to a maximum hardness of of 22 HRC. F22 has very good through hardenability allowing uniform properties across thick cross-sections. It is usually used in oil field equipment for wellheads, BOPs, hangers and valves.

 

F22 NQT Specification/Condition

  • ASTM A182 / NACE MR0175

F22 NQT applications

  • wellhead applications in oil patch, such as connectors, hangars and
    block valves

F22 NQT technical data

  • UTS (KSI): 95 Min
  • Yield 0.2% Offset (KSI): 75 Min
  • EL (% Min): 18
  • RA (% Min): 35
  • Hardness (HRC): 22
  • Charpy Impact Min. ft-lbs: –

F22 NQT dimensions

  • 12.25-23.75 in

F22 NQT Chemical composition (Wt %)

 

Carbon
(C)
Manganes
(Mn)
Phosphorus
(P)
Sulfur
(S)
Silicon
(Si)
Nickel
(Ni)
Cobalt
(Co)
0.05-0.15 Max 0.30-0.60 Max 0.040 Max 0.040 Max 0.50 Max

 

Chromium
(Cr)
Manganese
(Mo)
Niobium + Tantalum
(Nb (Cb) + Ta)
Titanium
(Ti)
Copper
(Cu)
Aluminum
(Al)
Iron (Fe) & Others
2.0-2.5 0.87-1.13 Fe– Balance, V– 0.050 Max

 

Contact us
cancel
cancel

My account settings

Please have a little patience. Your request is being processed.

Please use a browser that is not outdated.

You are using an outdated web browser.

Errors may occur when using the website.