Dublex

Duplex stainless steels are magnetic and are much more corrosion resistant than commonly used stainless steels such as 302 and 316. DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900)

  • Excellent workability
  • High mechanical strength
  • High resistance to tingling and stress corrosion cracking

is a duplex stainless steel.

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) CHEMICAL COMPOSITION

  • Carbon: 0.05
  • Silicon: 1.0
  • Manganese: 2,0
  • Phosphorus: 0,035
  • Sulfur: 0,030
  • Chrome: 25,5
  • Nickel: 5
  • Molybdenum: 1,5
  • Nitrogen: 0,08

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) FEATURES

  • High resistance to stress corrosion cracking (SCC) in chlorinated environments
  • High resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulfide
  • High resistance to general corrosion, pitting and gap corrosion
  • High resistance to erosion corrosion and corrosion fatigue
  • High mechanical strength – about two times more durability than austenitic stainless steel
  • Physical properties with design advantages
  • Good weldability

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) SHAPES SUPPLIED

  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) rod
  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) shaft
  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) plate
  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) sheet metal
  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) pipe
  • DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) wire
  • Weld wire with DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900)

In most environments, DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) has better resistance to general corrosion than ASTM TP316L and TP317L type steels.

The standard austenitic steel ASTM TP304L and ASTM TP316L are prone to stress corrosion cracking (SCC) at temperatures above 60 ° C (140 ° F) in chloride containing solutions. DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) stainless steels are less susceptible to corrosion than this type.

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) has better resistance to range corrosion than ASTM 316L type steels. ASTM 316 type steels are attacked by erosion corrosion if exposed to flowable media containing highly abrasive solid particles. Under these conditions, DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) exhibits very good resistance due to the combination of high hardness and good corrosion resistance.

 DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) has higher strength and better corrosion resistance than normal austenitic stainless steels. As a result, DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) has much better fatigue strength than such steels under corrosive conditions.

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) APPLICATIONS

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) is an extremely suitable material for working in chlorides and hydrogen sulfide-containing media due to its excellent corrosion properties. DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) can be used in refineries and in process tubes contaminated with chloride to produce oil and gas in production pipes and flow lines. DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) is also used as a cooling medium for heat exchangers when chlorinated water or brine is used.

The high strength of DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) makes the material a more attractive alternative to austenitic steels in structures exposed to heavy loads. DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) is an economical choice in many applications with good mechanical and corrosion properties.

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) BENDING

The starting force required for twisting is slightly higher than the standard austenitic grades (ASTM TP304L and TP316L) for DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900).

 

DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) WELDING

The weldability of DUBLEX 1.4460 (AISI 329, SS2324, UNS S32900) is good. Suitable welding methods are manual metal arc welding or gas shielded arc welding with covered electrodes.

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