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casing and tubing
- H40
  
  The most economical API 5CT grade for shallow, low-pressure well applications.
  
  J55
  
  The industry's go-to carbon steel grades for moderate-depth, non-corrosive well conditions.
  
  K55
  
  The highest-strength API 5CT grade engineered for ultra-deep, extreme-pressure well applications.
  
  L80-1
  
  A controlled-yield-strength grade engineered for mild sour-service and H₂S environments.
  
  L80-9Cr
  
  A 9% chromium alloy grade built for CO₂-corrosive sweet to moderately sour gas wells.
  
  L80-13Cr
  
  A 13% chromium martensitic steel grade purpose-built for high CO₂ gas condensate wells.
  
  C90, C95 & T95
  
  A progressive series of controlled-yield grades balancing increasing strength with sour-service compliance for demanding downhole conditions.
  
  P110
  
  The high-strength workhorse grade for deep, high-pressure non-sour well environments.
  
  Q125
  
  The highest-strength API 5CT grade engineered for ultra-deep, extreme-pressure well applications.
  
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May 8, 2026

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