Grade12 Titanium Pipe UNS R53400 ASTM B861 SCH10 SCH40 SCH80 Process Piping

Опубликовано Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd от 2026-10-25

1. Core Parameters

• Material: Grade12 Titanium Ti‑0.3Mo‑0.8Ni, UNS R53400
• Product Forms: Seamless & welded titanium process pipe
• Outer Diameter: 6 mm‑219 mm; Wall: SCH10, SCH40, SCH80 or custom wall thickness
• Length: Random length, fixed cut‑length or custom length
• Surface: Pickled surface, special polishing upon request
• Target Industries: Chemical process plant, brine treatment, corrosive medium transfer, pressure piping system
• Lead‑time: Standard SCH stock 10‑18 working days; non‑standard wall / OD custom 26‑42 working days

2. Product Definition

Grade12 titanium process pipe refers to large‑size pressure‑bearing piping for on‑site process fluid transfer, different from small‑bore heat‑exchanger tubing. It follows standard SCH wall‑thickness series for pressure piping design, available in seamless and welded construction for corrosive industrial pipeline network.

• By manufacturing process: Cold‑drawn seamless pressure pipe, welded & stress‑relieved pipe
• By structure usage: Standard SCH‑rated process pipe, custom heavy‑wall special piping

3. Material Advantage: Material‑Medium‑Corrosion‑Cleanliness

Ti‑0.3Mo‑0.8Ni (Grade12) offers moderate resistance to reducing‑type corrosive fluid without palladium additive cost, designed for continuous fluid transportation under pressure.

• Process medium: Suitable for hot brine, dilute wet chlorine, chloride‑containing mixed process fluid; improves crevice‑corrosion performance compared with Grade2 pure titanium pipe.
• Corrosion behaviour: Not suitable for highly concentrated hot hydrochloric acid; select Grade7 if strong reducing condition occurs. Pipe inner‑surface cleanliness prevents sediment deposition which triggers crevice corrosion.
• Surface cleanliness: Pickling removes scale and iron contamination; inner bore free of grinding residue, avoid sediment accumulation during long‑time fluid delivery.

4. Technical Standards

• Primary standards: ASTM B861 seamless titanium pipe, ASTM B338 welded titanium pipe
• Pressure piping reference: ASME B31.3 process piping code compliance basis
• Domestic reference standard: GB/T 3625
• Documentation: EN10204 3.1 MTC; hydro‑test report, NDT records, full batch traceability for pressure‑related orders.

5. Full Manufacturing Workflow: From Drawing To Finished Goods

1. Raw material incoming inspection: Verify Grade12 billet / coil strip chemical composition and surface condition.
2. Seamless route: Piercing, multi‑pass cold drawing, intermediate heat treatment to reach target SCH wall thickness.
3. Welded route: Strip slitting, roll forming, GTAW welding, full post‑weld stress‑relief annealing.
4. Pickling treatment for inner and outer surface oxide removal.
5. Mandatory hydrostatic pressure test per ASTM requirement for every pipe lot.
6. Eddy‑current non‑destructive inspection for weld seam or pipe body defects.
7. Dimension verification, marking with grade, standard, SCH number; export‑ready bundled packaging.

6. Key Component Performance

• Weld performance: Welded pipe requires full stress‑relief annealing; un‑annealed weld joint will reduce anti‑corrosion performance in chloride medium.
• Non‑destructive test: Hydrostatic pressure test, eddy‑current inspection; ultrasonic testing optional for heavy‑wall pipes.
• Pressure bearing: SCH wall thickness strictly matches design pressure requirement; wall thickness tolerance controlled for long‑term pipeline safety.
• Bore quality: Strict inspection for inner surface defect to avoid medium sediment and local corrosion starting point.

7. Application Industry — Medium‑Equipment‑Process

• Chemical process piping
  • Medium: Hot brine, dilute wet‑chlorine mixed fluid
  • Equipment & parts: Plant transfer pipeline, pressure‑rated process manifold
  • Process: Site cutting, flange welding, pressure test before commissioning
• Brine & salt‑solution treatment plant
  • Medium: High‑chloride salt solution, circulating brine
  • Equipment & parts: Brine delivery main pipe, auxiliary branch pipeline
  • Process: Site assembly, long‑term continuous fluid transportation
• Corrosive‑medium auxiliary system
  • Medium: Salt‑containing circulating cooling medium
  • Equipment & parts: Auxiliary pressure piping for reactor periphery
  • Process: Pre‑fabrication in workshop, on‑site installation

8. Selection Reference Table

Selection Type	Scenario	Suggested Option
Process‑based selection	Higher design pressure, critical process loop	Seamless Grade12 titanium pipe
Process‑based selection	Large diameter, medium‑pressure non‑critical branch pipeline	Fully annealed welded Grade12 pipe
Structure‑based selection	General‑purpose pressure design	SCH40 standard wall pipe
Structure‑based selection	High‑pressure heavy‑duty working condition	SCH80 heavy wall pipe

9. Customizable Items & Accessories

• Custom service: Non‑standard OD, custom wall thickness, fixed project cut‑length.
• Surface options: Standard pickled surface; inner‑outer polishing for special clean‑process requirements.
• Auxiliary service: End facing preparation for welding, marking per customer project code, bundled packing for site construction.

10. Lead‑Time, Test Report & Warranty

• Standard SCH stocked items:10‑18 working‑days upon order confirmation.
• Custom seamless / welded pipe:26‑42 working‑days, subject to dimension and wall complexity.
• Delivery documents: Mill Test Certificate, hydrostatic test report, eddy‑current inspection record, batch traceability documents.
• Quality warranty: Material complies ASTM B861 / ASTM B338; quality complaint supported within receiving inspection period.

Why Choose SXQYTD

SXQYTD provides Grade12 seamless and welded titanium process pipe with SCH standard wall series for chemical plant piping projects. We export pressure‑rated titanium piping to USA, Europe, Southeast Asia and Middle‑East. Send your piping specification or drawing for formal quotation.

Website: www.sxqytd.com

Contact us for your titanium project inquiry.