Gr2 Titanium Welded Tube ASTM B862 ≤114mm OD Cold Hot Rolled Weld Pipe
Опубликовано Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd от 2026-10-25
1. Product Identity
We are professional titanium manufacturer located in Shaanxi Baoji China. Gr2 titanium welded tube (TA2) is manufactured by titanium strip roll‑forming and GTAW welding followed by full annealing treatment, complying with ASTM B862 specification. Mainly used for medium‑low pressure corrosive process pipelines, brine circulation and chemical auxiliary piping system. Standard stock and custom dimension production are available for global industrial clients.
2. Core Technical Parameters
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Material Grade: Grade2 Commercially Pure Titanium (TA2, UNS R50400)
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Executive Standard: ASTM B862
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Outer Diameter: ≤114 mm
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Wall Thickness: ≥0.5 mm
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Max Single Length: 6000 mm
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Manufacturing Technique: Cold Rolled / Hot Rolled strip, roll forming, GTAW welding, full stress‑relief annealing
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Surface Condition: Polished / Pickling surface
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Certification: ISO，EN10204 3.1，EN10204 3.2 optional
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Application: Chemical corrosive pipeline, brine circulating pipe, heat‑exchanger auxiliary tubing
3. Chemical Composition (wt%, ASTM Standard)
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Grade
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Ti
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Fe
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O
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C
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N
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H
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Alloy Elements
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Gr2
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Balance
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≤0.30
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≤0.25
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≤0.08
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≤0.03
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≤0.015
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—
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4. Mechanical & Corrosion Performance
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Tensile Strength: ≥345 MPa
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Yield Strength: ≥275 MPa
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Elongation: ≥20%
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Corrosion Resistance: Excellent anti‑pitting performance in seawater, brine and chloride‑containing medium. Full post‑weld annealing guarantees weld seam keeps same corrosion resistance as base metal.
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Processing Feature: Good ductility for cutting, bending and on‑site secondary welding; full annealing eliminates welding residual stress to avoid stress‑corrosion risk.
5. Full Size Range
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Outer Diameter: OD ≤114 mm
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Wall Thickness: Minimum wall 0.5 mm, up to custom heavy wall
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Length: Max single length up to 6000 mm; support fixed‑length cutting per project requirement
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Custom options: Special tolerance, end‑face preparation for field welding, partial polishing for inner bore.
6. Surface Treatment Options
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Pickling surface: Remove welding & annealing oxide layer, standard for general chemical pipeline delivery.
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Polished surface: Inner‑outer polished finish, reduce medium sediment for circulating brine loop.
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Degreasing cleaning: Remove processing oil residue for high‑purity medium service.
7. Material Comparison: Gr2 Welded Titanium Tube vs Gr2 Seamless Titanium Tube
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Item
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Gr2 Welded Titanium Tube ASTM B862
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Gr2 Seamless Titanium Tube
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Cost level
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Cost‑effective for medium‑low pressure
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Higher manufacturing cost
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Pressure suitability
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Medium‑low pressure piping
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Suitable for high‑pressure working loop
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Max OD limitation
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Below 114 mm for this series
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Wide OD range by piercing process
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Weld seam requirement
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Must be fully annealed for corrosion performance
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No welding seam exists
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Gr2 welded titanium tube is economical alternative under medium‑low corrosive pressure condition, when full‑annealed and passed mandatory non‑destructive inspection.
8. Strict Quality Control & Test Items
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Raw titanium strip incoming inspection for chemical composition and surface quality.
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Welding process monitoring; full stress‑relief annealing parameter record.
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Full dimension inspection: Outer diameter, wall‑thickness, length measurement.
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NDT test: Eddy‑current inspection for weld seam; air‑tight / hydrostatic pressure test for each production lot.
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Surface visual inspection: No crack, pinhole or iron contamination on weld seam and tube body.
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Issued documents: EN10204 3.1 / optional 3.2 MTC, hydro‑test report, eddy‑current inspection record, batch traceability file.
9. Export Packaging & Shipment
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Inner packing: Anti‑rust plastic end cap for tube port, anti‑rust film wrapping tube bundle.
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Outer packing: Fumigated export wooden crate, spacer protection to prevent scratch and collision.
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Marking: Print grade, standard, dimension, heat number on each tube bundle.
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Trade terms: FOB, CIF, DDP available; sea freight for bulk tubes, air freight for small‑batch urgent orders.
10. Inquiry & Custom Service (Send Your Drawing Now)
We produce Gr2 ASTM B862 welded titanium tube, support EN10204 3.1 or 3.2 special certification according to project requirement.
Please provide following information for accurate quotation: 1) Outer diameter, wall thickness and single length; 2) Surface requirement; 3) Working medium & design pressure; 4) Required certification type; 5) Order quantity and delivery schedule.
Website: www.sxqytd.com
Contact us for technical evaluation and formal quotation.