Titanium Fittings Selection Guide| Elbow tee size judgment in 4 steps

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-23

Equipment procurement supervisor of a chemical plant in Chinatitanium pipeWhen you encounter quotation chaos, 90° Elbow with DN100, TA10 Different suppliers offer a large gap, At the same time, the industry code is written in various ways, If you don't understand the specification code, It is easy to choose the wrong.titanium pipeIt's chemical., chlor-alkali, ocean, Core parts of vacuum salt making equipment pipeline, Although it is not a high proportion of the whole equipment, But fitting selection, Loss of production due to material error, It will be much larger than the price difference of the material itself.Type selection needs to clarify the meaning of code, brand differences, implementation standards, and at the same time do a good job of incoming verification.

titanium pipeParts comply with GB/T27684, GB/T12459 code system, the standard writing format is DN nominal diameter × wall thickness grade × material grade.Elbow, tee and big and small head are the three types of pipe fittings with the highest proportion in industrial projects.Elbow has long radius and short radius, Long radius 1.5D fluid resistance less, belongs to engineering routine selection, Short radius only for installation space limited conditionsT-way is divided into equal diameter, reducing two kinds, adapt to the main branch pipe with the same diameter or different diameter pipeline;The big and small heads are divided into concentric heads, eccentricity, Concentric is mostly used in gas pipelines, horizontal pipeline preferential eccentric structure for liquid transportation, Avoid the accumulation problem.

TA2 industrial pure titanium, TA10 titanium molybdenum nickel alloytitanium pipeMain stream designation, TA2 corresponds to American standard Gr.2, cost-effective, Mostly used in seawater, dilute acid base, ordinary chloride conditionTA10 corresponds to American Standard Gr.12, Add molybdenum nickel alloy element, Better crevice corrosion resistance, Suitable for high temperature chlorine-containing medium, wet chlorine, reducing acid environment, Procurement costs will increase to a certain extent compared to TA2.Type selection can be judged comprehensively from medium, temperature, structure and budget: TA2 is selected for seawater, dilute acid and alkali at normal temperature;TA10 is preferred for high temperature chlorine, wet chlorine and crevice structure conditions.Domestic projects refer to GB/T series standards, Foreign trade joint venture projects mostly adopt ASTM, ASME standard, Note that the plates match.

titanium pipeThe shape of the piece is complex and the fake is concealed. The purchase and receipt can be verified in four steps.First of all, refer to the market situation, the quotation is obviously lower than the conventional interval, so we should be vigilant;Secondly, check the steel seal and the material warranty, the batch number of the steel seal furnace needs to correspond to the warranty one by one, so as to ensure the traceability of raw materials;Conditions allow the use of XRF spectrum detection, TA10 can detect molybdenum, nickel characteristic elements, avoid TA2 pretend to be TA10;simultaneous identification of non-standard traps, Non-standard customization does not mean abandoning size tolerance, flaw detection, material certificate, Non-standard samples without detection data have greater risks.Welding process link,titanium pipeParts welding requires high purity argon protection, Control heat input, Passivation after welding to recover corrosion resistance, It is recommended that the work be carried out by personnel experienced in titanium processing.

Based in Baoji China titanium valley manufacturers can provide elbow, tee, size and other typestitanium pipeParts, support GB, American standard different systems, engineers combined with medium, temperature, pressure to give brand and specification selection recommendations.

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frequently asked questions

Q：titanium pipeHow to interpret the standard code? A: The general format is DN nominal diameter × wall thickness grade × material, such as DN50×Sch80×TA2 90E (L), representing DN50, Sch80 wall thickness, TA2 material 90° long radius elbow.

Q: TA2 and TA10titanium pipeHow to choose? A: Seawater, normal temperature dilute acid and alkali have no obvious gap, TA2 is selected;High temperature contains chlorine, wet chlorine and reducing acid, and there are gaps and dead corners in the pipeline. TA10 is preferred.

Q: How do you choose concentric and eccentric heads? A: concentric size head suitable for gas pipeline;Horizontal layout of the liquid pipeline selection eccentric size head, avoid liquid accumulation.

Q：titanium pipeWhat are the key points of incoming material acceptance? A: Check the steel seal and the furnace batch number in the warranty document. Spectrum sampling inspection can be conducted under key conditions to confirm that the size tolerance and flaw detection report are complete.

disclaimer

This article selection ideas, Price range is based on industry project experience, For technical reference only, Not as engineering design, Direct basis for purchasing contract.Titanium material market fluctuations exist, the actual quotation to order the day the market prevail;Chemical pipeline pipe fittings selection, it is recommended that qualified engineers and technicians combined with working conditions, national standards comprehensive evaluation.