H2S Stress Corrosion Resistant Oil Casing – Product IntroductionI'm sorry, but it seems that there is no text provided for translation. Please provide the text you would like me to translate.

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Engineered with Cr-Mo-Nb-V microalloyed steel, this casing series (CB80S-CB110SS grades) achieves HRC≤22 hardness through precise quenching & tempering, effectively resisting sulfide stress cracking (SSC) in environments with H2S partial pressure >0.0003MPa. The metallurgical design incorporates ultra-low sulfur (S≤0.005%) and phosphorus (P≤0.025%) to minimize hydrogen-induced cracking risks.

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• I'm sorry, but it seems that there is no text provided for translation. Please provide the text you would like me to translate.Standards Compliance: API 5CT with NACE MR0175/ISO 15156 certification
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  • SSC resistance verified per NACE TM0177 Method A/D testing
  • CAL IV gas-tight connection qualification (ISO 13679)
• I'm sorry, but it seems that there is no text provided for translation. Please provide the text you would like me to translate.Service Limits: 150℃ max temperature in 15% H2S environments

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• Sour gas wells (>0.01% H2S concentration)
• High-pressure acid gas injection systems

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• Internal epoxy coatings for enhanced corrosion protection
• CBS/FJ series premium connections with metal-to-metal seals