GR2 Titanium Welded Tube
Overview
Baoji Yibaite New Materials Technology Co., Ltd. specializes in supplying Grade 2 commercially pure titanium welded tubes (GR2) for chemical processing, heat exchange, marine, and industrial applications. The company is located in "China Titanium Valley" - Baoji, and is a high-tech enterprise dedicated to the processing and sales of titanium alloys.
GR2 is known as the "workhorse" of the commercial pure titanium family, offering a well-balanced combination of moderate strength (tensile strength ≥ 345 MPa), excellent ductility (elongation ≥ 20%), superior weldability, and outstanding corrosion resistance. Our GR2 welded tubes are produced from high-quality titanium strip through precision longitudinal welding and post-weld annealing, delivering consistent weld quality, uniform wall thickness, and excellent dimensional accuracy at a more competitive price than seamless tubing. Fully compliant with ASTM B338 and ASME SB338, they are the preferred material for shell and tube heat exchangers, condensers, chemical reactor coils, seawater desalination systems, power plant cooling circuits, and pharmaceutical processing piping.
Welded or Seamless - Which Tube Do You Need?
Both meet ASTM B338. The right choice depends on your pressure, temperature, and cost requirements.
Welded Tube |
Seamless Tube |
|---|---|
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Lower cost - 20–30% savings vs. seamless |
No weld seam - uniform cross-section |
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Tighter wall thickness control |
Higher pressure capability |
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Better surface finish (inside & out) |
Preferred for extreme pressure/temperature |
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Wider range of thin-wall sizes |
Heavy-wall applications |
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Consistent ID and OD tolerances |
Nuclear / ASME critical service |
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Suitable for heat exchangers & condensers |
When code requires seamless construction |
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Weld seam annealed for full ductility |
Higher cost per meter |
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100% ECT tested for weld integrity |
Limited thin-wall availability |
Quick rule: If your application involves heat exchange, condensation, or process fluid handling at moderate pressure (≤ 30 bar) and temperature (≤ 450°C), welded tube is the smarter buy. You get the same corrosion resistance and material properties as seamless - at lower cost with tighter dimensional control. If your code mandates seamless or you operate above these limits, we supply seamless too.
Weld Quality - Our Priority
The weld seam is the critical quality feature of any welded tube. Our process ensures:
- Full-penetration weld - no lack of fusion or incomplete weld
- Inert gas backing - both ID and OD shielded during welding
- Seam annealing - full recrystallization of weld and HAZ
- 100% ECT inspection - every tube tested for weld discontinuities
Why CP Grade 2?
Grade 2 is the most widely used CP titanium grade for industrial tubing. Its combination of excellent corrosion resistance, good formability for tube bending and fabrication, and sufficient strength (345 MPa UTS) makes it ideal for heat exchangers and process equipment operating in seawater, brines, organic acids, and wet chlorine environments.
Why GR2 Welded Tube Delivers Value
Cost Savings
20–30% lower cost than seamless titanium tube of equivalent size. For heat exchangers and process piping where the weld seam is acceptable, the savings are significant at scale.
Corrosion Resistance
CP Grade 2 titanium resists seawater, brines, wet chlorine, organic acids, and oxidizing media. Outlasts stainless steel and copper alloys by 5–20× in aggressive environments.
Dimensional Precision
Tighter wall thickness control than seamless. OD tolerance ±0.15mm, WT tolerance ±10%. Consistent dimensions improve heat transfer efficiency and simplify tube-to-tubesheet fitting.
Verified Weld Quality
100% eddy current testing (ECT) on every tube. Hydrostatic pressure testing. Seam annealed for full ductility. You can't see the weld inside a heat exchanger - our testing ensures you never need to worry.
Full Size Range
OD 6–102mm, wall 0.5–5.0mm. Thin-wall capability for maximum heat transfer. Custom cut lengths, U-bends, and finned tubes available for heat exchanger fabrication.
Full Documentation
Where GR2 Welded Tubes Go to Work
From offshore platforms to chemical plants - titanium welded tubes handle what other metals can't.
Shell & Tube Heat Exchangers
Condensers, reboilers, and process heat exchangers. Thin-wall welded tubes maximize heat transfer efficiency while titanium's corrosion resistance eliminates tube replacement downtime.
Chemical & Petrochemical
Reactor cooling coils, distillation columns, acid recovery systems, and chlor-alkali cell piping. Withstands wet chlorine, oxidizing acids, and organic solvents.
Seawater & Brine Handling
Desalination plant evaporators, offshore platform cooling systems, and seawater intake piping. Immune to seawater pitting, crevice corrosion, and biofouling.
Power Plant Condensers
Turbine condensers, feedwater heaters, and flue gas desulfurization (FGD) systems. Titanium welded tubes eliminate corrosion-related failures in critical cooling circuits.
Specifications
| Material Grade | Standard | Outer Diameter | Wall Thickness | Length Range | Surface Treatment | Testing & Inspection |
| ASTM F67 / CP Titanium (Grade 1, Grade 2, Grade 3, Grade 4) / UNS R50400 | ASTM B338, ASME SB338, ASTM B265 (Strip Raw Material) Form: Precision Longitudinal Welded Tube | 12.0 mm – 220 mm (Custom diameters available) | 0.3 mm – 5.0 mm | 1,000 mm – 12,000 mm (U-tube bending and custom lengths available) | Pickled, Sandblasted, Polished (Bright surface), Annealed | 100% Eddy Current Testing (ECT), Hydrostatic Test, Flattening Test, Flaring Test, Pneumatic Test |
Your CP Titanium Partner in China
20%Cost Savings
Welded vs. seamless - same corrosion resistance, same GR2 material, lower cost. Save on large-scale heat exchanger tube bundles.
100% ECT Tested
Every tube eddy current tested for weld integrity. Not a sample - every single tube. Your heat exchangers deserve zero-defect tubing.
15+ Years Experience
Dedicated titanium processor in Baoji, China's Titanium Valley. Deep expertise in welded tube production for process industries.
24h Quote Response
Send OD, WT, length, and quantity. Detailed ASTM B338 quotation within 24 hours. Flexible MOQ for all size ranges.
FAQ
Q: Are you a manufacturer or a trading company?
A: We are a professional and experienced titanium products manufacturer in China.
Q: Can you provide customized processing?
A: Yes. Baoji Yibaite supports cutting, bending, stamping, CNC machining, and deep drawing according to customer drawings.
Q: What is the delivery time?
A: Regular size in stock within 3–7 days; customized production about 10–15 working days.
Q: What standards do your GR2 titanium welded tubes comply with?
A: Our Grade 2 titanium welded tubes strictly conform to international industrial specifications including ASTM B338 (for heat exchangers and condensers), ASTM B862 (for general welded pipe), and corresponding ASME SB338 / SB862 pressure vessel standards. Every delivery is supplied with a full EN 10204 3.1 Material Test Certificate (MTC).
Q: What surface finishes are available?
A: Pickled surface, polished, brushed, sandblasted, and mirror finish are all optional.
Our Factory
