Stainless Steel High Pressure Pipe 316Ti 6" SCH80, ASME SA-312, Chloride Resistance, Offshore Rigs
316Ti Stainless Steel High-Pressure Pipes (6" Sch80) by Jiangsu China Steel Union Industrial Co., Ltd are engineered for extreme offshore and subsea applications requiring robust chloride resistance and high-pressure integrity. Compliant with ASME SA-312, these titanium-stabilized (Ti: 5xC) austenitic stainless steel pipes withstand pressures up to 1,500 psi and resist pitting, crevice corrosion, and stress corrosion cracking (SCC) in seawater, H₂S, and chloride-rich environments. The 6" Sch80 dimensions (OD: 168.3mm, Wall Thickness: 10.97mm) ensure durability in deepwater drilling risers, hydraulic control lines, and injection systems. Seamless construction and rigorous testing guarantee reliability in offshore oil rigs, FPSO vessels, and subsea production systems.
2. Detailed Specifications
| Parameter | Details |
| Material | 316Ti Stainless Steel (UNS S31635 / ASME SA-312 TP316Ti) |
| Element Composition | Cr: 16–18%, Ni: 10–14%, Mo: 2–3%, Ti: 5xC–0.7%, C: ≤0.08%, Mn: ≤2%, Si: ≤1%, Fe: Balance |
| Dimensions | OD: 6" (168.3mm), Wall Thickness: 10.97mm (Sch80), Length: 6–12m (Customizable) |
| Certifications | ASME SA-312, NACE MR0175/ISO 15156, DNV-OS-F101, PED 2014/68/EU, API 5LC |
| Mechanical Properties | Tensile Strength: ≥515 MPa
Yield Strength: ≥205 MPa
Elongation: ≥35%
Hardness: ≤90 HRB |
| Pressure Rating | 1,500 psi at 20°C (Hydrostatic Test: 225 bar) |
| Temperature Range | -50°C to 450°C (Intermittent Service) |
| Surface Finish | Pickled & Passivated, Shot-Blasted, or 3LPE Coated for Subsea Use |
| Applications | Seawater injection lines, subsea manifolds, hydraulic umbilicals, BOP control systems |
3. Advantages of Importing Our Product
- Offshore-Grade Durability: Titanium stabilization prevents sensitization in weld zones during high-temp offshore operations.
- Cost Efficiency: 25% lower cost than U.S./EU suppliers, leveraging Jiangsu’s integrated steelmaking and cold-drawing facilities.
- Rapid Logistics: 15,000-ton annual capacity; 12-day lead time for ASME SA-312-certified orders from Qingdao or Houston hubs.
- Quality Assurance: 100% PMI testing, ultrasonic inspection (UT), and NACE TM0177 sulfide stress cracking (SSC) compliance.
- Custom Fabrication: Beveled ends, API threading, and clad coatings (Inconel 625) for sour service.
4. Key Applications
- Subsea Drilling: High-pressure risers, Christmas tree components, and choke/kill lines in H₂S environments.
- Seawater Injection: Corrosion-resistant piping for enhanced oil recovery (EOR) and reservoir pressure maintenance.
- Hydraulic Systems: Control fluid lines for blowout preventers (BOPs) and subsea production control modules (PCMs).
- Offshore Cooling: Seawater cooling circuits for FPSO power generation and LNG liquefaction systems.
Jiangsu China Steel Union Industrial Co., Ltd delivers ASME SA-312-certified 316Ti stainless steel pipes that redefine safety, longevity, and performance in offshore energy operations, empowering global clients to conquer the harshest subsea challenges.
FAQ
Q1. Where is your factory ?
A1: Our company's processing center is located in Wuxi, Jiangsu, China.
Which is well equipped with kinds of machines, such as laser cutting machine,mirror polishing machine and so on.We can provide a wide range of personalized services according to the customers' needs.
Q2. What are your company's main products ?
A2: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.
Q3. How do you control quality ?
A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.
Q4. What are the advantages of your company ?
A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q5. How many coutries you already exported ?
A5: Exported to more than 50 countries mainly from America, , UK, Kuwait, Egypt, , Turkey, Jordan,
India, etc.
Q6. Can you provide sample ?
A6: Small samples in store and can provide the samples for free.
Customized samples will take about 5-7days.
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316Ti Stainless Steel High Pressure Pipe 6 Inch SCH80 ASME SA-312 Chloride Resistance Images
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