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With excellent mechanical properties, corrosion resistance, and
good weldability, it has a wide range of uses in the oil and gas
industry, marine engineering, chemical industry and other
industries. The length of the oil and gas pipelines laid by duplex
stainless steel in the oil and natural gas industry has exceeded
850Km, most of which are 2205 duplex stainless steel seamless steel
pipes (some of them are S31803 duplex stainless steel pipes and
2507 duplex stainless steel pipes); West-East Gas Pipeline Due to
the strong corrosiveness of the natural gas medium in the project,
the high-pressure pipelines are all made of 2205 duplex stainless
steel.
It has good resistance to chloride ion stress corrosion cracking.
It is a duplex stainless steel composed of 21% chromium, 2.5%
molybdenum and 4.5% nickel-nitrogen alloy. Its yield strength is
twice that of austenitic stainless steel. This feature makes the
designer Reducing the weight when designing the product makes this
alloy more advantageous than 316 and 317L. Due to the high content
of chromium and molybdenum, the steel has excellent resistance to
pitting corrosion and uniform corrosion. The microstructure of the
dual phase head ensures that the steel has a high resistance to
stress corrosion cracking, and the mechanical strength is also
high.
Products Standards | Food Grade Sanitary Tube:JIS G3447 |
Heat exchange tube:ASTM A249 | |
Industrial pipe:ASTM A312 | |
Drinking water tube:GB/T 19228 | |
Mechanical tube:ASTM A554 | |
Production Size | Outer Diameter Range:9.5~2000mm Thickness:As required Length:Up to 18.3 meters per piece |
Shape section of tube | Round,rectangular |
Usage of tube | Sanitary tubing:for food processing industry,beverage industry,sugar mill and so on. Heat exchange tube:condenser,boiler,super heater,evaporator and so on Industrial pipe:for petroleum delivery,gas delivery,petrochemical industry,wastewater treatment,drainage system and so on. Mechanical tube:handrail,railings,balustrade,hence and so on. |
Technique | Hot rolled,cold rolled |
Certification | ISO |
Surface Finish | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D |
Special Pipe | Mild steel pipe |
Alloy Or Not | Non-alloy |
Tolerance | ±3% |
Type | Seamless Steel Pipe |
Processing Service | Bending,Welding,Punching,Cutting |