ASTM A815 ASTM A312 ASTM A789 ASTM A790 ASTM A928 UNS 32750 Welded pipe seamless pipe steel tube

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.  Electric Resistance Welded Pipe. High Frequency Induction Welded Pipe. Spiral submerged-arc welding pipes.

HT PIPE is the ASTM A 790 UNS S32750 Duplex Steel werkst off nr. 1.4410 Pipes & Tubes Manufacturer, Exporter & Suppliers. Duplex 2507 Seamless Pipe, SAF 2507 Pipes, ASTM SA789 Duplex steel tubes, Duplex Steel 2507 Pipes, S32750 Duplex Steel Seamless Pipe, super duplex 1.4410 Tube, 2507 welded pipe Manufacturer in China.

Super duplex 1.4410 Material Specfication and Dimension Standards:

Super duplex 2507 Pipe Size Range:

The difference between Super duplex UNS S32750 and S32760:

Duplex 2507 Overview

Duplex 2507 is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 pipe has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

Usage of Duplex 2507 should be limited to applications below 600° F (316° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.

Duplex 2507 possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication.

Corrosion Resistance

2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is also highly resistant to inorganic acids, especially if they contain chlorides. Alloy 2507 is highly resistant to carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.

What are the characteristics of Duplex 2507?

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  High resistance to chloride stress corrosion cracking

  
  

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  High Strength

  
  

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  Superior resistance to chloride pitting and crevice corrosion

  
  

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  Good general corrosion resistance

  
  

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  Suggested for applications up to 600° F

  
  

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  Low rate of thermal expansion

  
  

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  Combination of properties given by austenitic and ferritic structure

  
  

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  Good weldability and workability