YUHONG GROUP CO.,LIMITED

Duplex Steel Welded Pipe,Stainless Steel Welded Pipe,Duplex Steel Butt Welded Pipe

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Duplex Steel Welded Pipe

The business keeps to the operation concept "scientific management, premium quality and efficiency primacy, customer supreme for Duplex Steel Welded Pipe,Stainless Steel Welded Pipe,Duplex Steel Butt Welded Pipe Taking the core concept of "to be the Responsible". We will redound up on society for high quality products and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.
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ASME SA928 CLASS 1 UNS S31803 Duplex Steel Welded Pipe
  • Brand: YUHONG
  • Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
  • Min. Order: 1 Metric Ton
  • Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
  • Place of Origin: China, USA, Korea, UE

YUHONG Group deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia,...

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Super Duplex Steel Welded Pipe ASTM A790 S32760
  • Brand: YUHONG
  • Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
  • Supply Ability: 1500 tons per month
  • Min. Order: 500 Kilogram
  • Certificate: ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Super Duplex Stainless Steel Welded Pipe, ASTM 790, ASME SA790 , S31803 (SAF 2205) , S32750 (SAF2507), S32760(1.4501) YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube....

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China Duplex Steel Welded Pipe Suppliers

DUPLEX STAINLESS STEEL

Duplex Stainless Steels Available

Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.


Duplex Stainless Steel Overview

Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.


Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507

Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.


What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability


In what Applications are Duplex Stainless Steels® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts