The use of stainless steel has become more widespread with the development of the economy. People are closely related to stainless steel in daily life, but many people don't know much about the performance of stainless steel, and know less about the maintenance of stainless steel. Many people think that stainless steel will never rust. In fact, stainless steel has good corrosion resistance. The reason is that the surface forms a passivation film, which exists in the form of a more stable oxide in nature. That is to say, although stainless steel is different in oxidation depending on the conditions of use, it is eventually oxidized. This phenomenon is usually called corrosion.
All metal surfaces exposed to corrosive environments undergo electrification or chemical reactions and are uniformly corroded. The part of the stainless steel surface passivation film with weak corrosion resistance forms a pitting reaction due to the self-excited reaction, and generates small holes, and the chloride ions are close to form a strong corrosive solution to accelerate the corrosion reaction rate. There is also intergranular corrosion cracking inside the stainless steel, all of which destroys the passivation film on the stainless steel surface. Therefore, the stainless steel surface must be regularly cleaned and maintained to maintain its gorgeous surface and extend its service life. When cleaning the stainless steel surface, care must be taken not to cause surface scratching. Avoid using bleaching ingredients and abrasive cleaning liquids, steel balls, grinding tools, etc. To remove the washing liquid, rinse the surface with clean water at the end of washing.
The surface of the stainless steel is dusty and easy to remove dirt. It can be washed with soap, weak detergent or warm water.
The trademark and film of the stainless steel surface are washed with warm water, weak detergent, and the binder component is scrubbed with alcohol or organic solvent (ether, benzene).
The grease, oil and lubricating oil on the surface of stainless steel are contaminated, wiped clean with a soft cloth, and then cleaned with a neutral detergent or ammonia solution or with a special detergent.
The surface of the stainless steel is bleached and various acids are attached. Rinse immediately with water, dip with ammonia solution or neutral carbonated soda solution, and wash with neutral detergent or warm water.
The stainless steel surface has a rainbow pattern, which is caused by excessive use of detergent or oil. It can be washed with warm water detergent when washing.
The rust caused by dirt on the surface of stainless steel can be washed with 10% nitric acid or grinding detergent, or with special washing drugs.
As long as we use the correct maintenance method, we can extend the service life of stainless steel and keep it clean, bright and gorgeous.
ASTM A269 Stainless Steel Pipes
Stainless Steel Sanitary ASTM A269 Stainless Steel Tubes is the main tubing line for a piping system. Generally, ASTM A269 Stainless Steel Tubes are made in stainless steel 304 and 316l, but we provide other grade too such as hastelloy C22, 316Ti, Titanium and nickel alloy etc. Kaysen offer both sanitary seamless tubes and Sanitary Welded Tubes to ASTM A270, ASTM A249, A269, ASTM A554, DIN11850, and size is up to 12″. Inner and outer surface is polished to meet the high purity requirement of hygienic industries. Kaysen is ability to supplying qualified ASTM A269 Stainless Steel Tubes comply to your your condition and FDA,GMP requirement.
ASTM A269 Stainless Steel Tubes - Sanitary Tubing
Material: SS304, SS316L, EN 1.4301, EN 1.4404, etc
OD diameter: 1/2" - 12"
Thickness: 0.5mm - 6mm
Standard: ASTM, JIS, DIN, JIS, SUS, GB
Length: 6m or customer made
Tolerance: OD. ±0.2mm; Thickness: ±0.02mm; Length: ±0.5mm
Surface Treatment: Matt Finish or Mirror Finish (320# 400# 600#) etc
Application: Boiler, heat exchanger, construction, hygienic, pharmacy, power, petrochemical
Strength:
Heat Treatment of solution annealing for the sanitary tubings and fittings are available
High precision on dimension and wall thickness
Both seamless and welded sanitary tubings are available
Length is up to 12 meters.
Min. order quantity of sanitary tubings is from 300Kgs.
Offer industrial pipe and tubes according to order.
PMI test to verify material grade.
Visual and surface 100% examination before shipment.
End protected for shipment.
ASTM A269 Stainless Steel Pipes, 1.4301 A269 Steel Pipes, SS316L Sanitary Pipes
Kaysen Steel Industry Co., Ltd. , https://www.chinasanitaryvalve.com