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Shrioum Chemicals

Satara, Maharashtra

| GST  27AEVPR2070J1ZW

| Verified Supplier

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Shrioum Chemicals - Manufacturer of aluminum pickling, titanium passivation & vikram cement p h e scale in Satara, Maharashtra.
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Aluminum Pickling

Aluminum Pickling

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Aluminum is the 3rd widely used element in metal industry. Aluminum is light weight metal with good ductility and malleability. It is good conductor of the electricity . Aluminum is susceptible for getting attack of atmospheric air as well as the oxidizing agents.To prevent the unequal oxidation of the aluminum the process is adopted called Anodizing. The hard anodizing is forming the hard (thick). Layer of the aluminum oxide over the surface. This prevents further oxidation.

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Titanium Passivation

Titanium Passivation

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A possible limiting factor of titanium alloy application in aqueous chlorides can be crevice corrosion in metal to metal joints, gasket to metal interfaces or under process stream deposits. Given these potential crevices in hot chloride containing media, localized corrosion of unalloyed titanium and other alloys may occur depending on pH and temperature .

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Vikram Cement P H E Scale
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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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The process specified is to "pickle and passivate" - a two step method - in order to create a surface on stainless steel that would be resistant to corrosion. Pickling (or Chemical Descaling) is done to remove scale. Passivation is done to make the surface more passive and corrosion resistant. Passivation is the formation of a hard non-reactive surface film that inhibits further corrosion. This layer is usually an oxide or nitride that is a few atoms thick.

Passivation is a process performed to make a surface passive, i.e., a surface film is created that causes the surface to lose its chemical reactivity. Passivation unipotentializes the stainless steel with the oxygen absorbed by the metal surface, creating a monomolecular oxide film

Passivation is performed when free iron, oxide scale, rust, iron particles, metal chips or other nonvolatile deposits might adversely affect the metallurgical or sanitary condition or stability of the surface, the mechanical operation of a part, component or system, or contaminate the process fluid.

Passivation is performed on clean stainless steel, providing the surface has been thoroughly cleaned or descaled. Since the term "passivation" is used to describe distinctly different operations or processes relating to stainless steels, it is necessary to define precisely what is meant by passivation.

1. Passivation is the process by which stainless steel will spontaneously form a chemically inactive surface when exposed to air or other oxygen-containing environments. Steels containing more than 11% Chromium are capable of forming an invisible, inert or passive, self-repairing oxide film on their surface. It is this passive layer that gives stainless steels their corrosion resistance. If a stainless steel surface is scratched, then more Chromium is exposed which reacts with oxygen allowing the passive layer to reform. However, if a particle of carbon steel is embedded in the scratch then the passive layer cannot reform and corrosion will occur when the metal is wetted or exposed to a corrosive environment. 

2. Passivation is the chemical treatment of a stainless steel surface with a mild oxidant such as citric acid passivation solution. This process is to accelerate the process noted above in No. 1.

3. Passivation is the removal of exogenous iron or iron compounds from the surface of stainless steel by means of a chemical dissolution, most typically by a treatment with an citric acid passivation solution that will remove the surface contamination but will not significantly affect the stainless steel itself.

This is necessary because during handling and processing such as rolling, forming, machining, pressing, tumbling, and lapping, particles of iron or tool steel or abrasive particles may be embedded in or smeared on or into the surfaces of stainless steel components. If allowed to remain, these particles may corrode and produce rust spots on the stainless steel. This is due to the formation of a galvanic couple between two dissimilar metals that can promote a corrosive reaction. To dissolve the embedded or smeared iron and prevent this condition, as well as restore the original corrosion-resistant surface, semi-finished or finished parts are given a 'passivation' treatment. 

4. Passivation also is accomplished by electropolishing. Electropolishing is an electrochemical process that is a super passivator of stainless steel and results in a more passive surface than the other methods mentioned above

 

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Aluminum is the 3rd widely used element in metal industry. Aluminum is light weight metal with good ductility and malleability. It is good conductor of the electricity . Aluminum is susceptible for getting attack of atmospheric air as well as the oxidizing agents. 
To prevent the unequal oxidation of the aluminum the process is adopted called Anodizing. The hard anodizing is forming the hard (thick). Layer of the aluminum oxide  over the surface. This prevents further oxidation.

We provide pre anodizing chemicals which enables the aluminum surface uniformity to set the anodizing on the metal. This also removes the staining at final finish after stripping. This gives luster polish as well as the passivation effect apart from its aesthetic look.

 

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A possible limiting factor of titanium alloy application in aqueous chlorides can be crevice corrosion in metal to metal joints, gasket to metal interfaces or under process stream deposits. Given these potential crevices in hot chloride containing media, localized corrosion of unalloyed titanium and other alloys may occur depending on pH and temperature .

Though ‘Titanium” is immune to corrosive attack by salt water or marine atmospheres. It also exhibits exceptional resistance to a broad range of acids, alkalis, natural waters and industrial chemicals. in certain condition Metal get attacked. Biometrically non acceptable .

Chemical Passivation according to active standard ASTM F86-01 standard practice. For Forgings for Surgical Implants. ... The pH of the solution was adjusted to 7.4±0.1 and the temperature during the test was maintained at 37±0.2ºC. 

Titanium is "passive" so a separate treatment is not called out, however, it is for the medical industry and usuallyASTM B600-91 is cited for cleaning and descaling of titanium. It is referenced in ASTM F86 which describes practice for prepping "metallic surgical implants." for corrosion cleaning and descaling procedure useful to producers, users, and fabricators of titanium and titanium alloys for the removal of ordinary shop soils, oxides, and scales resulting from heat treatment operations and foreign substances present as surface contaminants.

Passivation  treatments provide a controlled and uniformly oxidized surface state. The Passivation leads to a dense and stable oxide film and improves corrosion resistance (decreases ion release). The Passivation procedure involves nitric acid eliminating metallic contaminants from the surface. It has however practically no influence on the overall surface topography of Titanium surface. The resulting layer of this chemical treatment is a TiO 2 film in a thickness of two to six nanometers.

 

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alpha beta brasses alpha (Cu70Zn30)/ beta( CusoZnso) brass

The purpose of the treatment is to clean and produce a level of Passivation of the surface of brass articles to resist staining by handling residues and atmospheric contaminants. 
free from stains and have the color of the brass substrate.

It is normally intended as a final process before assembly or packaging. The Passivation films produced are extremely thin Process consist of Cleaning , Pickling , and Chromate Passivation, Rinsing with Pressure Jet and drying with hot air .

Based on alloy composition and end use, finish. We give proprietary Bath Solutions for total process. We had observed 4 years of shelf life for Passivated brass with our product.

 

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Passivation Chemicals

Passivation Chemicals

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Passivation Chemicals

Passivation Chemicals

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Chromate Passivation of Brass articles
The purpose of the treatment is to clean and produce a level of Passivation of the surface of brass articles to resist staining by handling residues and atmospheric contaminants. free from stains and have the color of the brass substrate.

It is normally intended as a final process before assembly or packaging. The Passivation films produced are extremely thin Process consist of Cleaning, Pickling, and Chromate Passivation, and hot air drying.

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Casting Passivation

Casting Passivation

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Orthopedic Insertations

Orthopedic Insertations

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Pressure Jet

Pressure Jet

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Water Blasting

Water Blasting

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Aluminum Passivation

Aluminum Passivation

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Aluminum Passivation

Aluminum Passivation

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Brass Passivation

Brass Passivation

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Brass Passivation

Brass Passivation

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Ispat Sip

Ispat Sip

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Nalco Phe Scale

Nalco Phe Scale

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Shrioum Chemicals - Manufacturer of aluminum pickling, titanium passivation & vikram cement p h e scale in Satara, Maharashtra.

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27AEVPR2070J1ZW
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