Products Description
Product Specifications
| Standards | ASTM B861 |
| Steel Grades | Titanium Grade 2,UNS R50400 |
| Equivalent Standards | DIN 3.7035/EN 3441, JIS H4600 Class 2, GOST VT1-0 |
| Outer Diameter (OD) | 6 mm – 219 mm (0.236"– 8.622") |
| Wall Thickness (WT) | 0.5 mm – 12 mm (0.020"– 0.472") |
| Length | Up to 18 m or Customized |
| Surface Treatment | Bright Annealed, Polished, Pickled |
| Production Process | Cold Drawn, Cold Rolled |
| Condition | Bright Annealed |
Titanium Grade 2 tube is inherently immune to pitting and crevice corrosion in high-temperature, high-concentration chloride media, and offers complete resistance to chloride stress corrosion cracking. It is capable of operating reliably within a temperature range extending from -196°C up to approximately 300°C.
Grade 2 titanium has a density of only 4.51 g/cm³-approximately 45% lighter than stainless steel (8.0 g/cm³) and nearly half the weight of Hastelloy C-276 (8.89 g/cm³). This significantly reduces the structural load on support systems and lowers both transportation and installation costs.
In addition to its resistance to chlorides, Grade 2 titanium exhibits exceptional corrosion resistance in a wide variety of oxidizing acids-such as nitric, chromic, and acetic acids-as well as in various organic acids. Furthermore, it offers an exceptionally long service life in strongly oxidizing media, such as chlorine dioxide bleaching agents and wet chlorine gas.
Customized Services
- TORICH offers custom sizing services, with an outer diameter range from 3 mm to 630 mm and customizable wall thicknesses up to 60 mm.
- We provide various end finishes and machining options, including plain ends, beveled ends (at angles such as 30°, 37.5°, etc.), threaded ends, and clamp-style connection ends.
- Upon request, additional treatments-such as acid passivation, mechanical polishing, or ultra-clean washing-can be applied to meet the stringent requirements of pure water or high-purity media applications.
Chemical Composition
| Element | Ti | Fe | O | C | N | H |
|---|---|---|---|---|---|---|
| Composition, % (Max) | Balance | 0.30 | 0.25 | 0.08 | 0.03 | 0.015 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HB) |
| Requirement | ≥ 345 | ≥ 275 | ≥ 20 | ≤ 200 |
Possible Alternative Grades
- Titanium Grade 1 (UNS R50250) possesses excellent ductility and formability, making it suitable for components requiring extensive forming operations. However, its strength is slightly lower than that of Titanium Grade 2.
- Titanium Grade 7 (UNS R52400), which contains palladium, exhibits high corrosion resistance in strongly reducing acidic environments. It is utilized in demanding processing environments where exceptional chemical corrosion resistance is required, though its cost is relatively high.
- Grade 12 (Ti-0.3Mo-0.8Ni) outperforms Grade 2 in terms of resistance to crevice corrosion and is more affordable than Grade 7; it is well-suited for applications involving hot seawater and acidic brine environments.
application areas
- Reactor Systems: Chlorination reactor coils, hydrogenation reactor liners, polymerization tower heat exchange tubes, etc.
- Heat Exchange Equipment: HCl recovery unit heat exchangers, sulfuric acid coolers, nitric acid condensers, phosphoric acid evaporator tube bundles, and heat exchangers for caustic soda production.
- Transport Pipelines: Chlorine/chloride transport lines, high-purity chemical transport lines, waste acid treatment system piping.
- Pickling & Electroplating: Stainless steel pickling line, acid tanks, plating solution circulation piping, electrolytic copper foil production equipment, PCB etching solution piping.
- Chlor-Alkali Industry: Ion membrane electrolyzers, brine purification systems, chlorine drying towers, and liquid chlorine transport pipelines.
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
FAQ
Q: Can Grade 2 titanium tubing be used in hydrochloric acid or sulfuric acid media?
A: Grade 2 is suitable for oxidizing acids; however, it is susceptible to corrosion in pure, dilute hydrochloric or sulfuric acid. It may be suitable for use in the presence of oxidizing impurities (such as Fe³⁺, Cu²⁺, or nitric acid) or at extremely low acid concentrations; nevertheless, Grade 7 or Grade 12-which contain palladium-are generally recommended.
Q: What is the maximum service temperature limit for titanium tubing in high-temperature environments?
A: The maximum service temperature for Grade 2 titanium tubing is 315°C in oxidizing atmospheres and 260°C in reducing atmospheres. Exceeding these temperatures will result in a reduction in mechanical strength and accelerated oxidation.
Q: What precautions should be observed regarding the transportation and storage of titanium tubing?
A: Avoid direct contact with carbon steel to prevent contamination by iron ions. Store the tubing in a dry, well-ventilated environment, avoiding exposure to moisture and salt spray. Utilize specialized lifting equipment to prevent surface scratches, as such damage can compromise the material's corrosion resistance.
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