Oil and casing pipes are seamless steel tubes specially used for oil and gas extraction, consisting of two product categories: casings and tubing, manufactured in compliance with API 5CT standard with a full range of sizes and multiple steel grades available.
Line pipes are dedicated steel tubes for oil & gas gathering and long-distance transportation, manufactured to API 5L specification with two product specification levels PSL1 and PSL2. A full range of outer diameters is available, covering multiple steel grades including L245, L360, X60, X70 and X80, with complete seamless, longitudinal submerged arc welded and spiral welded pipe options.
Hydraulic prop tubes are high-precision seamless steel pipes specially for coal mine hydraulic supports and engineering machinery oil cylinders, adopting special alloy materials such as 27SiMn with complete specifications and uniformly controlled wall thickness.
Structural seamless steel pipes are applied for load-bearing structures including machinery manufacturing, steel structure projects, bridge infrastructure and vehicle frames, complying with GB/T 8162 standard. A variety of carbon and alloy steel grades such as 20#, 45#, Q355 and 42CrMo are available with complete outer diameter and wall thickness specifications.
Seamless steel tubes for gas cylinders are special pipes for high-pressure gas storage vessels, manufactured in accordance with GB/T 13483 standard. High-strength alloy steel grades including 34CrMo4, 37Mn and 34Mn2V are available with a full range of outer diameter and wall thickness specifications.
Seamless boiler tubes are specially developed for pressure-bearing working conditions of boilers, heat exchangers and power station pipelines, complying with standards including GB/T 5310 and GB/T 20801. High-pressure boiler-specific steel grades such as 20G, 15CrMoG and 12Cr1MoVG are stocked with a complete range of dimensions.
Line pipes are special steel pipes for long-distance transportation of oil, gas and media, manufactured in accordance with API 5L specification with two product specification levels PSL1 and PSL2. Multiple production processes including seamless pipe, longitudinal welded pipe and spiral welded pipe are available, covering a full series of steel grades such as L245, L360, X60, X70 and X80 with complete outer diameter and wall thickness specifications.
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