Products Description
Our Advantages
1. High Pressure Resistance
- The Chromoly Tube is available in both hot-rolled and cold-drawn manufacturing processes. Our seamless manufacturing process ensures uniform wall thickness and even stress distribution under high internal pressure.
- Eddy current testing and hydrostatic testing are used to ensure the tubes are free of internal defects, allowing for stable operation in high-pressure boilers and superheaters.
2. Excellent Oxidation and Corrosion Resistance
- Our tubes are made from high-quality chromium-molybdenum alloy material, resistant to chlorides and sulfides, making them suitable for power plant and petrochemical applications.
- The tubes are tested using a spectrometer to ensure the material meets ASTM A213 standards, ensuring a longer service life in high-temperature and high-pressure applications.
3. High Temperature Strength and Creep Resistance
- The Chromoly Tube exhibits excellent high-temperature strength, maintaining superior mechanical properties at high temperatures. Our T91 material is suitable for supercritical boilers. The tubes undergo heat treatments such as solution annealing and tempering to ensure overall creep resistance.
- TORICH tubes undergo high-temperature tensile testing and creep testing to ensure they maintain excellent strength and do not deform under high-temperature applications.
4. Customization and Packaging Services
- We offer customized sizing services with a dedicated team to provide suitable materials according to customer needs, and offer surface treatments such as pickling, passivation, or mechanical polishing.
- Our tubes are protected with plastic caps on both ends, and packaged using plastic film, woven bags, wooden crates, and iron frames to prevent damage or contamination during transportation.
application areas
- Power generation industry: boilers, superheaters, and reheaters, etc.
- Petrochemical and refining: steam pipelines and pressure piping in refinery process units, hydrogen transmission lines, and high-pressure reactors, etc.
- Boiler and heat exchange systems: industrial shell-and-tube heat exchangers, economizers, waste heat boilers, and gas heaters, etc.
- Oil and gas: high-pressure pipelines in upstream and downstream facilities, heat exchangers in offshore and onshore plants, etc.
Chemical Composition
| Element | C | Mn | Si | Cr | Mo | V | Nb |
|---|---|---|---|---|---|---|---|
| T2 | ≤0.15 | 0.30–0.60 | ≤0.50 | 0.50–0.80 | 0.45–0.65 | - | - |
| T5 | ≤0.15 | 0.30–0.60 | ≤0.50 | 4.00–6.00 | 0.45–0.65 | - | - |
| T91 | 0.08–0.12 | 0.30–0.60 | 0.20–0.50 | 8.00–9.50 | 0.85–1.05 | 0.18–0.25 | 0.06–0.10 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
| T2 | ≥415 | ≥205 | ≥30 |
| T5 | ≥415 | ≥205 | ≥30 |
| T91 | ≥585 | ≥415 | ≥20 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| T11 | Suitable for medium-intensity applications, it exhibits good high-temperature strength and is suitable for medium-temperature pressure systems. |
| T22 | It possesses excellent creep strength at high temperatures and conforms to general global standards, making it suitable for high-temperature boiler tubes, superheaters, reheaters, etc. |
| Inconel 718 | It offers superior corrosion and oxidation resistance, making it suitable for offshore oil and gas systems, chemical processing equipment, and other applications. |
Products Show
Testing Equipment
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Factory Equipment
Pickling equipment
Polishing equipment
Cold drawing equipment
Products Package
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