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Refinery Grade Stainless Steel Butt Weld Elbows in 304 and 316L custom

Refinery Grade Stainless Steel Butt Weld Elbows in 304 and 316L Manufacturers

-- Steady & Reliable Manufacturer --

Heavy-Duty Refinery Grade Elbows

Oil refineries operate under some of the most stressful conditions, involving high temperatures, fluctuating pressures, and volatile hydrocarbons. Our Refinery Grade Stainless Steel Butt Weld Elbows are specifically designed to meet these challenges, offering the structural density and thermal stability required for downstream processing. We manufacture these elbows in both 304 for general process water and steam lines, and 316L for high-corrosion areas such as distillation units and hydrotreaters. As a professional manufacturer, we focus on the wall thickness uniformity at the outer radius (back wall) to ensure that the elbow remains the strongest part of the pipeline. Our refinery-grade components are heat-treated to ensure maximum ductility and toughness, providing a critical safety margin against the mechanical vibrations and thermal expansion cycles common in heavy industrial complexes.

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Refinery Technical Specifications

Technical FeatureRefinery Specification Detail
Material OptionsASTM A403 WP304/304L, WP316/316L, WP321/321H
Design StandardASME B16.9, ASME B31.3 Process Piping
Size Range2" to 48" (DN50 - DN1200)
Wall ThicknessSchedule 40S, 80S, 160, XXS
Nondestructive TestingRT (Radiography), UT (Ultrasonic), PT (Penetrant)
CertificationFull MTC 3.1, NACE MR0175 compliant available

Petrochemical & Refinery Applications

These refinery-grade elbows are indispensable for the transportation of fluids within Crude Oil Distillation Units (CDU) and Vacuum Distillation Units (VDU). In the petrochemical industry, they are used for ethylene production lines and aromatic processing plants. Our 316L elbows are specifically favored for sulfuric and phosphoric acid service, as well as in sour gas treatment units where H2S is present. They are also essential for heat exchanger interconnection piping and boiler feed systems. Due to their high-temperature stability, our 321H variants are utilized in catalyst regeneration and flare gas lines. Every elbow is designed to maintain its geometric integrity under the high-velocity flow of erosive slurries or high-pressure steam, ensuring a 24/7 continuous operation without unexpected shutdowns.

High-Stress Performance Advantages

  • Extreme Wall Uniformity: Controlled hot-forming ensures minimal thinning at the extrados, maintaining full pressure rating.
  • NACE Compliance: Available in materials tested for resistance to sulfide stress cracking, vital for sour service oil and gas.
  • Thermal Cycle Resilience: Superior ductility allows the elbows to expand and contract without developing stress fractures.
  • High Velocity Tolerance: Smooth internal geometry minimizes erosion from high-speed fluid and gas transport.

Procurement & Export Services

We support payments via T/T and Irrevocable L/C at sight. For refinery maintenance projects (Turnarounds), we offer expedited production schedules to meet critical "down-time" windows. Our elbows are protected with anti-rust oil or specialized coatings and shipped in reinforced seaworthy wooden crates. We provide comprehensive documentation including heat treatment charts, NDT reports (Radiographic and Ultrasonic), and Mill Test Certificates to ensure compliance with ASME B31.3. Shipping is managed through major ports like Shanghai or Ningbo, with full tracking services. Our export team is well-versed in the complex compliance requirements of the global energy sector, ensuring smooth customs clearance and on-site delivery.

  • Q: Do your elbows undergo radiographic testing?
  • A: For refinery-grade applications, we offer 100% X-ray (RT) testing on the weld seams for welded elbows to ensure zero-defect structural integrity.
  • Q: Can you provide elbows in Schedule 160 or XXS?
  • A: Yes, we specialize in heavy-wall elbows for high-pressure refinery applications, manufactured to meet the exact wall thickness requirements of your system.
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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 Refinery Grade Stainless Steel Butt Weld Elbows in 304 and 316L 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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