304L Square Stainless Steel Welded Pipe Large Size Stainless Steel Pipe Astm

***Product Description***
 

Round Sizes:
9.5, 12.7, 16, 17, 17.5, 18, 19, 20, 21, 22, 25.4, 28, 31.8, 36, 38, 42, 42.4, 48, 50.8, 60, 63, 63.5, 76, 76.2, 89, 101.6, 114, 133 .etc
Square Sizes:
10*10, 12.7*12.7, 15*15, 17*17, 18*18, 19*19, 20*20, 22*22, 23*23, 24*24, 25*25, 28*28, 30*30, 35*35, 36*36, 38*38, 40*40, 50*50, 60*60, 80*80 .etc
Rectangular Sizes:
20*10, 23*11, 24*12, 25*13, 30*15, 13*38, 30*20, 40*20, 34*22, 36*23, 38*25, 50*25, 60*30, 60*40, 75*45, 80*40, 95*45 .etc

The difference between 304 and 304L

The steel 304L is 304 to reduce the carbon content to 0.03% or less of the obtained steel, which is generally characteristic 304 is almost the same, but this steel can be suppressed due to the precipitation of chromium carbides caused sensitization between 500 ~ 900oC of improving welding susceptibility to intergranular corrosion caused by, and therefore suitable for large welded structure to be welded directly to use timber and timber fittings.
Forming process of almost 304 species of the same, but the aging cracking sensitivity is minimal.
In general corrosion, stress corrosion cracking, pitting resistance characteristics and the same 304.
Benxi Iron and species characteristics is to improve the intergranular corrosion susceptibility, will reduce the carbon content to not produce thermal welding parts of the practical problem. Between austenitic stainless steel to intergranular corrosion due to the grain boundary chromium carbide (Cr23C6) precipitation, 18 C solid solubility of Cr-8Ni steel last 0.02% at 800 ℃, C content than the solid solubility, the was heated to 600 ~ 900 ℃, chromium carbides will precipitate in the grain boundaries short time, reducing the amount of Cr within the austenite, decreased corrosion resistance. Thus, by reducing the carbon content in order to reduce the amount of precipitation of chromium carbides, improved thermal sensitivity of purpose. Since the phenomenon of intergranular corrosion in the heat affected zone of welding is the most welding is heated to a temperature range of 600 ~ 900 ℃ when it will occur, and the higher the C content of the steel, the more significant, but less than 0.03% when the C content will be sensitized to mitigate does not affect the degree.

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• stainless steel sheet /plate
• Stainless steel coil
• Stainless steel pipe/tube
• Stainless steel bar/rod
• Stainless steel square/angle bar
• Galvanized steel sheet/plate
• Galvanized steel coil
• Galvanized steel pipe/tube

 
Material/Grade : 304 321 316 316L 310S 309S 202 201 430 409L 444 410s 904L 2205 2507 Incoloy 800 800H 800HT 825 Inconel 600 625 718 Monel 400 Hastelloy C-276.etc
   

                                         
             Company Information---The Reason Why You Will Choose Us

• We are an large storage company and have our own factory . We specialize in stainless steel products for 23 years, we can supply Processing services , including cutting ,welding , surface treatment and precision processing.
• Our product line includes stainless steel sheet/plate/circle/coil/strip/pipe/tube/bar. etc and galvanized steel sheet/plate/coil/strip. etc . More than 200 kinds of products for your choice .
• We can also supply special stainless steel product , such as Monel / Incoloy / Inconel / Hastelloy .etc
• we have strict inspection system to ensure the quality, and all processes are carried out according to ISO 9001: 2008.
• we are nominated as the AAA enterprise by Jiangsu government.
• We are powerful manufacturer audited by world top inspection company ISO ,SGS, TUV and BV.
• Our products have been exported to more than 60 countries and regions, including Europe, Middle East, South Asia, South America, Africa, United Arab Emirates .etc.
• The annual production capacity is 50000 tons stainless steel products.

 
     
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