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Incoloy 020

Chemical Composition

%

Ni

Cr

Fe

C

Mn

Si

Cu

Mo

N

Ti

P

S

min

24.0~26.0

19.0~21.0

remainder

=0.02

=2.00

=0.50

0.5

6.0~7.0

0.15

0.6

=0.030

=0.010

Physical Performance

Density

8.1g/m3

Melting Point

1320-1390?

Mechanical Performance(min at room temperature)

Product name

Strength of extension      Rm N/mm2

Yield    strength      RP0.2N/mm2

Ductility      A5%

Incoloy 020

650

295

Product Description

Incoloy 020 characteristics:

• High corrosion resistance and crevice corrosion in halide medium and  acid medium containing H2S

• Effectively resist chloride stress corrosion cracking in practical  application

• Excellent corrosion resistance in oxidation and reduction  environment

• The mechanical properties were greatly improved compared with  Cronifer 1925 lc-alloy 904 L

• The metallurgical stability of the alloy with 18% nickel increased  greatly compared with the same series product

• Have the certification in pressure vessel manufacturing application

 

Incoloy 020 Metallographic Structure:

Facing centered  cubic lattice structure.

Incoloy 020 Corrosion resistance:

020 is  austenitic stainless steel with a similar chemical composition with alloy 904L.  Its nitrogen content is increased to about 0.2%, and molybdenum content is  about 6.5%.The increase of nitrogen and molybdenum content significantly  improved the corrosion resistance and crevice corrosion in the halide medium.
 At the same time, nickel  and nitrogen not only guarantee the stability of metallography, but also reduce  the tendency of crystallization in the process of heat processing or welding.
 Excellent partial  corrosion resistance and 25% nickel content make the alloy 020 particularly  resistant to corrosion in the chloride medium. In chloride concentration of  10000-70000ppm, PH 5-6, working temperature of 50-68 ? in the limestone slurry of all kinds of FGD system test  shows that after 1 to 2 years of trial, alloy 020 is basically no pitting  corrosion and crevice corrosion.
 020 alloys also have good  corrosion resistance in other chemical media, as well as high temperature and  high concentration media, including sulfuric acid, phosphoric acid, acidic gas,  sea water, salt and organic acids.
 The 020 alloy is the  selection of the BAM catalogue of BAM in Berlin (BAM), chapter 6,  "specification for the storage and transportation of dangerous  goods". In addition, only when the material is in the correct  metallurgical state and guaranteed clean conditions can have the best corrosion  resistance.

Product Application

 The Incoloy 020 is a  versatile material that can be used in many industrial fields:

• Fire protection system,  seawater purification system, hydraulic and perfusion piping system in ocean  engineering.

• Bleaching pool in cellulose  pulp production.

• Polished rod in a corrosive oil  well.

• Hose system in ocean  engineering.

• Pipeline, joint and air flow  system in the production of acid gas.

• Components in flue gas  desulfurization system.

• Evaporator, heat exchanger,  filter, mixer and so on in phosphoric acid production.

• Sulphuric acid separation and  condensation system.

• Evaporator of concentrated and  crystallized salt.

• Condensing and piping systems  in power plants using sewage cooling water.

• Shipping containers for  corrosive chemicals.

• Production of organic  derivatives using acid chloride catalyst.

• Reverse osmosis desalination  plant.

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