Technology and application of stainless steel BA pipe
It is the abbreviation of atmosphere protection heat treatment (Bright Annealed), common names: stainless steel BA tube, bright annealed tube, seamless tube, gas line tube, clean tube, ferrule tube, high purity gas line pipeline.
Material: 304 precision stainless steel tube, 316L Standards: ASTM A249, A269, A270, 3A and BPE standard, G3459. JIS G3447.
Forming method: mainly multi-roll cold rolling, the product size accuracy can reach 0.2%, the product inner surface finish Ra < 0.45 um.
Product features: accurate size, overall cleanliness, smooth surface, the inner surface is better than polished finish when not polished
Raw materials: special requirements can use double furnace steel ingots, meet ASTM A269 standards.
Manufacturing method: cold rolling + fine drawing, the size accuracy reaches about 0.05mm, the inner surface Ra is about 0.4 microns.
Heat treatment: bright solution (annealing) under the protection of reducing atmosphere.
Cleaning method: Ultrasonic cleaning with SC2286 cleaning agent, that is, degreasing and deoiling must be done.
Inspection: water pressure + eddy current non-destructive testing and other methods.
Finishing: straightening + polishing + sizing.
Packaging: inkjet printing + PE bag + cap + shock-absorbing packaging + dust packaging + protective protection.
Application: special gas or liquid transportation, and also the base material of EP pipe.
Applicable industries: biopharmaceuticals, electronic clean workshops, high-purity gases, high requirements, clean laboratories, solar photovoltaics, liquid crystal displays, polysilicon and other fields. Semiconductor industry, pharmaceutical industry, liquid crystal industry, compressed air, instrumentation systems, ultra-high purity gases, chemical systems, WFI systems and other gas pipeline systems or clean rooms or equipment with high purity and ultra-high purity requirements.
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