321 Stainless Steel Pipe

Description

321 Stainless Steel Pipe
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ASTM A790 ASTM A789 UNS S31803 Duplex Pipe Tube
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The 321 stainless steel pipe tube, a versatile stainless steel tube that widely use to make equipment and parts that require good overall performance (corrosion resistance and molding).

321 stainless steel pipe tube, the most widely use stainless steel, heat resistant steel. Use in food production equipment, chemical equipment, nuclear power, etc.

321 stainless steel pipe tube chemical composition specification C Si Mn P S Cr Ni (nickel) Mo

SUS304 less than or less than 0.08 is less than or equal to 1.00 or less than 0.03, or less than 0.05, or 0.03, 18.00-20.00, 8.25 ~ 10.50 –

In air or chemical corrosion resistant to corrosion medium of a kind of high alloy steel. stainless steel is a beautiful surface and corrosion resistant performance is good, need not after surface treatment, such as color of plating and the surface of the stainless steel inherent performance, used in a variety of steel a, often called stainless steel. It represents the performance of 13 chrome steel, 18-8 chrome nickel steel.

From the perspective of metallography analysis, because the stainless steel containing chromium and make the surface form very thin chromium film, the film is isolated from intrusion in the steel corrosion of oxygen. To maintain the corrosion resistance inherent in stainless steel, steel must contain more than 12 percent chromium.

321 stainless steel pipe seamless steel pipe (ASTM A312/213 TP321 ) use in the manufacture of various structural low intermediate pressure boiler superheated steam pipe, water pipe and locomotive boiler superheated steam pipe, pipes, small pipe and arch brick works of high quality carbon structural steel hot rolling and cold drawing (rolling) seamless steel tube.

321 stainless steel pipe mainly use in the manufacture of high pressure and over pressure steam boiler pipes, etc.

With high quality carbon structural steel.

alloy steel and stainless heat resistant steel seamless steel tube, the boiler tube by the party under high temperature and high pressure pipe and works in high temperature flue gas and steam will happen under the action of oxidation and corrosion. so the steel pipe with high rupture strength, high oxidation resistance, and have good organizational stability, hydraulic prop.

The stainless steel pipe has a steel number:

There are 20G, 20MnG and 25MnG steel. 304 stainless steel pipe.

The alloy structural steel number 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.

Rust resistant steel use in 1Cr18Ni9 and 1Cr18Ni11Nb high pressure boiler tube except for the chemical composition and mechanical properties, the water pressure test should be done by the root, which should be expanded and flat test.

The stainless steel tube shall deliver in heat treatment.

In addition, there are certain requirements for the microstructure, grain size and decarburizing layer of finished steel tube. A seamless steel tube for geological drilling and oil drilling.

In order to ascertain the structure of underground strata, groundwater, oil, natural gas and mineral resources, the drill use to drill Wells