-
Industries Overview公司产品主要运用于核电、石油、石化、化工、电力、汽车、造船、化肥、医药、造纸、制糖、机械制造等工业装备行业。 -
Products & Solutions我们的产品：黑色金属矿原料（镍矿、镍铁、铬铁、锰铁、硅铁等）、无缝管、焊管、中厚板、板卷、棒材、 盘条、盘丝、管件、法兰、铸件等。 -
Community公司凭借良好的信誉、完善的服务和充足的资源，在同行业中树立了良好的口碑。 -
Process Visualization公司产品主要运用于核电、石油、石化、化工、电力、汽车、造船、化肥、医药、造纸、制糖、机械制造等工业装备行业。 -
About Us上海鑫鑫荣特钢材料有限公司于2012年通过德国莱茵检测认证服务有限公司TUV Rheinland 的ISO9001国际质量体系认证，现正和英国英国船级社子公司劳氏质量认证公司 LRQA （Lloyd's Register Quality Assurance）申请认证通过ISO9001质量体系、ISO14001国际环境管理体系和ISO45001职业健康管理体系国际认证。
-
Products & Solutions
Metallic Composite Pipe for Oil & Gas Gathering & Transportation
Metallic Composite Pipe for Oil & Gas Gathering & Transportation
Metallic Composite Pipe for Oil & Gas Gathering & Transportation
1) Overview
Metallic composite pipes are dual-layer or multi-layer steel pipes designed to combine the high strength of carbon/line pipe steels with the corrosion resistance of corrosion-resistant alloys (CRA).
The outer layer (API 5L X52/X65/X80) ensures strength and weldability, while the inner layer (316L, 2205 duplex, Inconel 625/825) provides superior resistance to H₂S, CO₂, and chlorides in oil & gas service.
2) Manufacturing Process
• Bimetallic structure: base layer (carbon steel/line pipe steel) + CRA liner
• Bonding methods:
• Metallurgical bonding (explosion bonding, hot rolling, extrusion, drawing) → strong atomic bond, high integrity
• Mechanical bonding (lined pipes) → CRA liner mechanically expanded into base pipe, cost-effective for large diameters
• Post-processing: heat treatment, machining, NDT, dimensional calibration
3) Key Features
• Superior corrosion resistance: suitable for H₂S, CO₂, Cl⁻ environments
• High strength: meets API 5L X52–X80 grade requirements
• Extended service life: 5–10× longer than carbon steel pipes
• Good weldability: base layer is weldable carbon steel
• Cost-effective: lower cost than full CRA pipes with comparable performance
4) Standards
• API Spec 5LD: CRA clad and lined steel pipe
• SY/T 6623 (China): explosion bonded clad steel pipe
• DNV-OS-F101: offshore pipeline design standard
• ISO 3183 (reference): linepipe requirements
5) Typical Material Combinations
• Base Layer (Strength): API 5L X52 / X65 / X70 / X80
• CRA Liner (Corrosion Resistance):
• 316L stainless steel (moderate chloride service)
• 2205 / 2507 duplex stainless steel (chloride stress cracking environments)
• Inconel 625 / 825 (severe sour service, high H₂S/Cl⁻, deepwater)
6) Applications
• Oil & gas gathering pipelines: high water-cut wells
• Subsea pipelines: deepwater HPHT corrosive environments
• Onshore pipelines: CO₂ flooding, sour gas gathering
• Refineries & petrochemicals: corrosive process lines
• Unconventional O&G: shale gas, tight gas, sour fields
7) Quality & Testing
• Bonding strength: shear & peel tests
• Chemical analysis: spectrometer testing for CRA composition
• Mechanical tests: tensile, impact, hardness
• Corrosion tests: HIC, SSC, CO₂/H₂S simulation
• NDT: UT, RT, ECT
• Third-party certification: API, DNV, ISO, SGS
8) Supply & Packaging
• Forms: straight pipes, U-bends, pipe spools
• Dimensions: OD 50–1200 mm, WT 5–40 mm
• Layer ratio: typical 90:10 or 85:15
• Ends: beveled for welding
• Packaging: plastic caps + anti-rust oil + wooden crates/steel racks
• Traceability: MTC (EN 10204 3.1/3.2), API 5LD certified
9) Our Advantages
• Complete material portfolio: carbon steel + CRA (316L, 2205, Inconel 625/825)
• Advanced bonding processes: metallurgical & mechanical lined pipes
• Large diameter supply: up to OD 1200 mm
• Full certifications: API, DNV, ISO, national standards
• Lifecycle service: technical selection → manufacturing → inspection → welding support → field installation
Materials & Dimensions of CRA Clad & Lined Pipes for Oil & Gas Gathering
1. Base Pipes
• Carbon Steel: API 5L Gr.B, X42–X70, ASTM A106 Gr.B
• Low Alloy Steel: ASTM A335 P11, P22
• ➝ Provide strength, pressure containment, weldability, and cost efficiency
Dimensions:
• OD: 4” – 48” (114 – 1219 mm)
• WT: 6 – 40 mm
• Length: 6 m, 12 m, or customized
2. Liner / Cladding Materials
• Stainless Steels: 304L, 316L, 317L, 904L
• Duplex Stainless: 2205, 2507
• Nickel Alloys: Inconel 625, Incoloy 825, Hastelloy C-276
• Titanium & Ti Alloys: Grade 2, Grade 5 for aggressive chloride/corrosive service
Dimensions:
• Liner thickness: 2 – 6 mm
• Ratio of total wall thickness: 10% – 25%
3. Cladding & Lining Technologies
• Explosion Bonding: For thick-walled clad plates/pipes
• Hot Roll Cladding: Large-scale clad plate/tube manufacturing
• Mechanically Lined Pipes (MLP): Carbon steel + thin stainless liner
• Weld Overlay: Applied where high-alloy or localized corrosion resistance is needed
4. Dimensions
• OD: 4” – 48” (114 – 1219 mm)
• WT: 8 – 40 mm (base 6–30 mm + liner 2–6 mm)
• Length: 6 m, 12 m, up to 18 m
• Pressure Rating: ANSI / ASME Class 150 – 2500, API 5000 – 20000 psi
5. Applications
• Gathering Pipelines: crude oil, natural gas, produced water
• Sour Gas Service: H₂S / CO₂ environments, SSC resistant
• Subsea Pipelines: chloride-rich seawater → duplex stainless, nickel alloys
• Refinery & Chemical Piping: corrosive fluids such as sour water, brine
• Cryogenic & Deepwater: LNG transport, ultra-deepwater oil & gas
Tags:
