Titanium is a new type of metal. Its performance is related to the content of impurities such as carbon, nitrogen, hydrogen, and oxygen. The purest titanium iodide has an impurity content of no more than 0.1%, but its strength is low and its plasticity is high. Currently widely used in the petrochemical industry, what are the main characteristics of titanium alloys?
- The lower density can significantly reduce the string load, especially for ultra-deep oil well pipes.
- Higher strength includes: tensile strength, creep strength, fatigue strength, etc.
- Excellent corrosion resistance, excellent seawater corrosion resistance.
- Wide operating temperature range. The operating temperature of conventional titanium alloy ranges from minus 269 ℃ to minus 600 ℃.
- Larger elastic deformation capacity, titanium alloy has high yield strength and low elastic modulus (E), so it is very suitable for springs and other parts, and more importantly, it is suitable for large-reach horizontal wells.
- Lower expansion coefficient. This feature makes the petroleum equipment more adaptable to temperature changes and reduces the internal stress of structural parts.
- Non-magnetic, suitable for the normal use of some detection, communication and control methods in various equipment.
- Better processing performance. Titanium alloys usually have good casting, forging, welding, 3D printing and other technical performance, which is often an important factor in the selection process of various engineering materials.
Titanium alloy pipes, flanges, various bolt fittings, etc. are currently more and more widely used in the petroleum industry. With the improvement and improvement of various titanium processes and technologies, various titanium alloy tubing and casing and other equipment will also increase. The more widely used.
Link to this article：Several characteristics of titanium alloys used in petrochemical industry
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