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Titanium seamless tubes shall be made of hollow billets by any cold drawing or cold reduction process, with continuous periphery at all stages of manufacturing operation. Titanium welded pipes shall be made of annealed, flat rolled plates by automatic arc welding or other welding processes.
Titanium welded pipe can be used for heat exchanger and condenser, and various corrosive fluid transportation
Pipeline system, titanium bicycle pipe, automobile exhaust pipe and marine aquaculture, etc.
1. Titanium is a rare non-ferrous metal. Its density is 4.5 g/cm3, only 60% of that of steel. Therefore, it is much lighter than most other metals. We can use it to make high strength, good rigidity and light products.
2. Titanium metal is also famous for its high strength and can work continuously at a high temperature of 450-500 ° C.
3. Excellent corrosion resistance: can work in humid air, sea water, strong acid and strong alkali
4. Non-magnetic: Because it is a non-magnetic metal, it is not easy to magnetize. Moreover, it is non-toxic and has good compatibility with human tissues and blood. Therefore, it is widely used in the field of medical science.
Characteristics of titanium
1. Excellent corrosion resistance
2. Excellent strength to weight ratio
3. Low density
4. High heat resistance
5. Good thermal conductivity
6. Very good oxidation capacity
7. High melting point
8. Low elasticity module
9. Excellent corrosion resistance
10. Low thermal expansion coefficientApplication:
| 1.Tensile requirements | |||||
| Grade | Tensil strength(≥) |
Yeild strength(≥)) |
Elongation(≥)%) | ||
| ksi | Mpa | ksi | Mpa | ||
| GR1 | 35 | 240 | 20 | 138 | 24 |
| GR2 | 50 | 345 | 40 | 275 | 20 |
| GR3 | 65 | 450 | 55 | 380 | 18 |
| GR4 | 80 | 550 | 70 | 483 | 15 |
| GR5 | 130 | 895 | 120 | 828 | 10 |
| GR7 | 50 | 345 | 40 | 275 | 20 |
| GR9 | 90 | 620 | 70 | 483 | 15 |
| GR12 | 70 | 483 | 20 | 345 | 18 |
| GR23 | 120 | 828 | 110 | 760 | 10 |
| 2.Chemical requirements | |||||||||||
| Grade | N(≤) | C(≤) | H(≤) | Fe(≤) | O(≤) | Al(≤) | V(≤) | Pd(≤) | Mo(≤) | Ni(≤) | Ti |
| GR1 | 0.03 | 0.08 | 0.015 | 0.2 | 0.18 | / | / | / | / | / | bal |
| GR2 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | / | / | / | / | / | bal |
| GR3 | 0.05 | 0.08 | 0.015 | 0.3 | 0.35 | / | / | / | / | / | bal |
| GR4 | 0.05 | 0.08 | 0.015 | 0.2 | 0.4 | / | / | / | / | / | bal |
| GR5 | 0.05 | 0.08 | 0.015 | 0.4 | 0.2 | 5.5~6.75 | 3.5~4.5 | / | / | / | bal |
| GR7 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | / | / | 0.12~0.25 | / | / | bal |
| GR9 | 0.03 | 0.08 | 0.015 | 0.25 | 0.15 | 2.5~3.5 | 2.0~3.0 | / | / | / | bal |
| GR12 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | / | / | / | 0.2~0.4 | 0.6~0.9 | bal |
| GR23 | 0.05 | 0.08 | 0.012 | 0.25 | 0.13 | 5.5~6.5 | 3.5~4.5 | bal | |||
Grade 1: Pure Titanium, relatively low strength and high ductility.
Grade 2: The pure titanium most used. The best combination of strength, weldability.
Grade 3: High strength Titanium, used for Matrix-plates in shell and tube heat exchangers.
Grade 5: The most manufactured titanium alloy. Exceedingly high strength. high heat resistance.
Grade 7: Superior corrosion resistance in reducing and oxidizing environments.
Grade 9: Very high strength and corrosion resistance.
Grade 12: Better heat resistance than pure Titanium. Applications as for Grade 7 and Grade 11.
Grade 23: Titanium-6Aluminum- 4Vanadium ELI. Alloy for surgical implant application.
Titanium Seamless Tube/PipeTitanium Sponge→Compacting Electrodes →Melting →Forging→ Billet→ Extruding→ Rolling→ Straightening→ Seamless Tube
Titanium Welded Tube/PipeTitanium Sponge→Compacting Electrodes→Melting →Forging→ Slab→ Hot Rolling→ Cold Rolling→ Ti Strip →Welding →Welded Tube
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