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zheheng steel provide ship with stainless steel tube, has through the ABS American bureau of shipping the authentication, KR Korean register of shipping the authentication, RINA RINA authentication, BV bureau veritas certification and DNV det norsk --stainless steel pipe in chemical industry


Chemical used in many of the stainless steel such as: boiler, exhaust pipe, microwave oven, high temperature furnace bravery, furnaces, waste water treatment equipment, heat exchanger, mechanical and electrical equipment, desalination equipment, petrochemical equipment, pipeline, refining equipment, nuclear power equipment, medical equipment, aerospace machinery, paper making equipment, anti-corrosion containers, reaction kettle, such as high temperature and high pressure equipment corrosion were used stainless steel.

In chemical plant what industry USES stainless steel pipe, as long as there is high temperature and high pressure, corrosive equipment will use stainless steel products.

Stainless steel is resistant to atmospheric corrosion
Industrial areas are areas where heavy industry causes air pollution. Pollution may be caused by gases from fuel, such as oxides of sulphur and nitrogen, or by other gases released by chemical plants or processing plants. Particles suspended in the air, such as dust from steel production or iron oxide deposits, also increase corrosion.

The stainless steel pipe can be divided into Cr series (400 series), cr-ni series (300 series), cr-mn-ni series (200 series) and precipitated hardening series (600 series).200 series - chrome-nickel-manganese austenitic stainless steel 300 series - chrome-nickel austenitic stainless steel.

Rapid development in recent years, domestic 316 l stainless steel pipe, chemical raw materials increase quantity greatly improve, so as to make the large chemical industry grew rapidly and whenever chemical plant before and after the Spring Festival for the annual overhaul, with fine chemical industry, machinery and equipment used parts also increase accordingly. Most used when belong to 321 stainless steel tubes with 316 l stainless steel tubes, respectively introduce below 321 stainless steel tube and 316 l stainless steel tube in the chemical industry's use.

321 stainless steel pipe, the pipe for special use, a lot of times the tube in a high inadequate low not awkward interface, such as the use of 304 stainless steel tube can complete the operation procedures, save cost and can ensure the safety of the material. The high level of modified materials, such as 316 l stainless steel pipe materials, 321 stainless steel pipe can't instead of its use, the 321 stainless steel pipe tube's real use steam, but not very strong corrosion were degree, such as ph, will not be able to use 321 stainless steel tube,

316L stainless steel pipe: 316L stainless steel pipe is used to resist acid and alkali and corrosion. For example, it is used in sea water.

Therefore, the use of 321 stainless steel pipe and 316L stainless steel pipe should be cautious.