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Oil and Gas Carbon Steel Pipe Fittings custom

Oil and Gas Carbon Steel Pipe Fittings Manufacturers

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Field-Proven Carbon Steel Oil & Gas Fittings

Carbon steel pipe fittings are the fundamental building blocks of oil and gas piping infrastructure, connecting the flow of hydrocarbons from wellhead to refinery across thousands of kilometers of pipeline. Our Oil and Gas Carbon Steel Pipe Fittings are manufactured from ASTM A234 WPB, A420 WPL6, and high-yield MSS SP-75 WPHY grades, delivering the mechanical strength, impact toughness, and weld compatibility required for upstream, midstream, and downstream applications. As a professional manufacturer, we produce a complete range including long radius elbows, equal and reducing tees, concentric and eccentric reducers, and end caps in all standard schedules. Every fitting is formed using hot-press or mandrel-pull techniques to ensure uniform wall thickness and consistent internal geometry. Our carbon steel fittings are compatible with all standard pipeline coating systems—including FBE, 3LPE, and 3LPP—and can be supplied pre-coated for immediate field installation, minimizing construction time and corrosion risk in pipeline projects worldwide.

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Oil & Gas Fitting Technical Data

ParameterSpecification Detail
Material GradesASTM A234 WPB/WPC, MSS SP-75 WPHY 42/52/60/65
Design StandardASME B16.9, MSS SP-75, API 5L compatible
Size Range1/2" to 72" (DN15 - DN1800)
Wall ThicknessSchedule STD, XS, 40, 80, 120, 160, XXS
Coating OptionsFBE, 3LPE, 3LPP, Coal Tar Epoxy, Bare
Certification3.1 MTC, NACE MR0175, API 5L material match

Upstream, Midstream & Downstream Applications

Carbon steel pipe fittings serve every stage of the oil and gas production and processing chain. In upstream operations, they form the gathering system piping that collects crude oil and natural gas from wellheads and routes it to processing facilities, including all branches, direction changes, and diameter transitions. Midstream pipeline operators use high-yield WPHY 52/60/65 fittings at mainline tie-ins, compressor station piping, and pig launcher/receiver assemblies where high design pressures and impact toughness are mandatory. Downstream refineries depend on A234 WPB fittings for cooling water systems, fuel gas distribution, utility steam, and process piping in lower-temperature services. LNG liquefaction and regasification terminals use low-temperature A420 WPL6 fittings for cryogenic service down to -46°C. Offshore platforms rely on carbon steel fittings for structural topsides piping, firewater mains, and drilling mud systems.

Pipeline-Specific Performance Advantages

  • API 5L Material Compatibility: Manufactured to match the chemistry and mechanical properties of API 5L pipeline steel grades, ensuring consistent weld performance and no dissimilar metal issues.
  • High-Yield Strength Options: WPHY 42 through WPHY 65 grades provide higher strength for high-pressure mainline applications, allowing thinner walls and reduced system weight.
  • Coating System Compatibility: Surface preparation and geometry are optimized for the adhesion of external pipeline coating systems including FBE and 3LPE for underground corrosion protection.
  • Impact Toughness at Low Temperatures: A420 WPL6 grade provides guaranteed Charpy impact values at -46°C for cold climate and LNG applications.

Pipeline Project Supply & Logistics

We support payments via T/T and Irrevocable L/C at sight. For pipeline construction projects, we offer contract pricing for complete fitting schedules with phased delivery aligned to construction progress. All fittings are supplied with bevel ends protected by plastic caps and coated with anti-rust oil. For coated fittings, we apply cutback zones at weld ends per project specification. We use heavy-duty seaworthy wooden crates or steel-banded pallets for sea freight. Complete project documentation is provided including 3.1 Mill Test Certificates, heat treatment records, Charpy impact test results, and dimensional inspection reports. Our logistics team is experienced in delivering to remote pipeline construction sites and offshore fabrication yards globally, with full export customs documentation and project management support.

  • Q: What grade of carbon steel fitting is compatible with API 5L X65 pipeline?
  • A: MSS SP-75 WPHY 65 fittings are the direct match for API 5L X65 pipe, providing equivalent minimum yield strength (65 ksi / 448 MPa) and compatible chemistry for welding without preheat issues.
  • Q: Can you supply fittings with pre-applied FBE coating to match the mainline pipe?
  • A: Yes, we can supply fittings with factory-applied FBE or dual-layer FBE coating with the standard 50-75mm bare metal cutback at each weld end, ready for field welding and field joint coating.
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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
About Us
JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Our company is a professional manufacturer of pressure piping components. As Oil and Gas Carbon Steel Pipe Fittings Manufacturers，Our product range covers butt-weld, socket-weld, and threaded pipe fittings, including flanges and customized non-standard parts. These products are widely used in industries such as oil & gas, chemical processing, power generation, shipbuilding, papermaking, metallurgy, pharmaceuticals, and food processing. We manufacture according to standards such as ASME, EN,JIS,DIN,ANSI,GOST, MSS, GB/T,HG, DL, SH, SY,and have a complete range of inspection equipment, a strict quality control system, and various certifications（PED,AD2000,EAC, ABS,BV, DNV,NORSOK M650, ISO9001,ISO14001,ISO45001,etc.）, making us a leader in the industry.

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