Titanium Condenser Tubes
Standard: ASTM B338
Materials: pure titanium Gr1/Gr2
Type: seamless tube/ welding tubes
General specifications can be provided by the warehouse
Product Introduction
Titanium condenser tube has today replaced copper alloys as the most favored tube material for salt water-cooled condensers. The main reason is the excellent corrosion resistance of titanium in chloride-containing environments. Titanium is today to be regarded as the standard tube material for surface condensers in salt or brackish water-cooled condensers in steam power plants of any significant size. The use of titanium is also increasing in power plants with cooling tower circuits as well as in fresh water-cooled plants. As the manufacturers, we promise to meet the standard of ASME SB338, follow 100% Eddy current tested, and 100% Ultrasonic tested. The experience of titanium tubed condensers is usually more than satisfactory.
Specification
Materials | Gr2 |
Standard | ASTM B338 |
Type | Seamless tube/ welding tube |
Out diameter | 19.05mm |
Thickness | 0.5-1.2mm |
Length | 6-10m |
Chemical Composition(wt.%)
Sample | N | C | H | Fe | O | Ti |
Sampling | 0.004 | 0.004 | 0.003 | 0.058 | 0.097 | Allowance |
ASTM B338 Grade 2 | ≤0.03 | ≤0.08 | ≤0.015 | ≤0.30 | ≤0.25 | Allowance |
Tensile properties data at room temperature
| Sample | Tensile Strength Rm/MPa | Yield Strength RP 0.2/MPa | Post-break Elongation A/% |
| Sampling | 458 | 386 | 34.6 |
| ASTM B338 Standard Value | ≥345 | 275~450 | ≥20 |
Salt or brackish water is used as cooling water for 75% of the titanium condensers. The remaining titanium condensers are evenly divided between cooling tower circuits and once-through fresh water cooling.
Characteristics
It has the characteristics of corrosion resistance, high strength, low density, etc., but can only be welded with pure titanium or some titanium alloys during welding, and the welding environment has high requirements. In the welding process, the liquid droplets and the pool metal have a strong role in absorbing hydrogen, oxygen, and nitrogen, and in the solid state, these gases have interacted with them. As the temperature increases, the ability of titanium and titanium alloys to absorb hydrogen, oxygen, and nitrogen also increases significantly. It starts to absorb hydrogen at about 250°C, absorbs oxygen at 400°C, and absorbs nitrogen at 600°C. These gases After being absorbed will directly cause embrittlement of the welded joint, which is an extremely important factor affecting the welding quality. When welding titanium and titanium alloys, pores are often encountered, but the welds generally do not produce cracks.
In summary, titanium tubes have the characteristics of corrosion resistance, high strength, and low density. The heat transfer performance is almost the same as that of copper alloy tubes. Due to the influence of material cost and the welding process, the finished condenser is relatively high. Considering the economic performance impact of long service life and low maintenance cost, it is more secure to select titanium condenser tubes in some special industries or projects.
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