Stainless Steel Sheets Suppliers in Mumbai

Stainless Steel Sheets Suppliers in Mumbai

Extensive Stockholder, Supplier & Exporter of Stainless Steel Sheets/Plates/Coils


Stainless Steel Sheets /Plates / Coils

At “ASTEC” We hold a comprehensive stock of 200 | 300 | 400 SERIES STAINLESS STEEL SHEETS |PLATES |COILS of following grades, Ready to deliver.

 

200 Series SS Sheets, Plates & Coils

202 SS

300 Series SS Sheets, Plates & Coils

304/304L SS
308 SS
309 SS
310 SS
316/316L/316Ti SS
317L SS
321/321H SS
347H SS

400 Series SS Sheets, Plates & Coils

410 SS
420 SS
430 SS

Stainless Steel Sheets are the iron alloys which has at least 10.5 % of chromium in its composition. There are also other alloy elements which are added to enhance its properties & structure. These elements can be Nickel, copper, Molybdenum, Titanium etc. Non metal additions like Carbon, nitrogen are also done.
The major requirement of a stainless steel Sheet/Plate is that it must be Anti-corrosive for a given environment & applications.
There are five types of SS classified according to their crystalline structure. Three of which have specialized properties which are:

Martensitic
Precipitation Hardening
Duplex

The other two types of stainless steel which are widely used across all industries are:

Ferritic
Austenitic

Ferritic SS has better engineering properties than Austenitic type but this type of SS has less corrosive resistant because they have low chromium and nickel content. They usually are cost effective.

Austenitic SS has two types which are 200 series & 300 series. This type of SS has market share of above 70% of total stainless steel production.

200 series
Also called chrome manganese stainless steel which further has two types 201 & 202.
It’s an austenite series which has low Nickel content due to which it is cheaper than 300 series.
This series suffers from lower formability compared to 300 series however this can be improved with the addition of copper.

300 series
These stainless steels are austenitic. They can be hardenable only by cold working methods. As their major alloying elements these grades s have chromium around. 18 to 30% and nickel around 6 to 20%.
300 series SS sheets are corrosion resistant can survive at high temperatures and can be easily maintained. 300 series SS is preferred in the aerospace, construction & automotive industries.

400 Series
This group includes both ferritic as well as martensitic steels.
The 400 series of stainless steels consists of higher carbon content, which gives it a martensitic crystalline structure which in result gives high strength and more wear resistance.
400 series Ferritic steels are non hardening hence they are suitable for applications requiring high temperatures
400 series martensitic steels have ability to get hardened & are ideal for various common applications like cutlery,multi purpose tools.

Know About Stainless Steel

Stainless Steel Sheets are the iron alloys which has at least 10.5 % of chromium in its composition. There are also other alloy elements which are added to enhance its properties & structure. These elements can be Nickel, copper, Molybdenum, Titanium etc. Non metal additions like Carbon, nitrogen are also done.
The major requirement of a stainless steel Sheet/Plate is that it must be Anti-corrosive for a given environment & applications.
There are five types of SS classified according to their crystalline structure. Three of which have specialized properties which are:

Martensitic
Precipitation Hardening
Duplex

The other two types of stainless steel which are widely used across all industries are:

Ferritic
Austenitic

Ferritic SS has better engineering properties than Austenitic type but this type of SS has less corrosive resistant because they have low chromium and nickel content. They usually are cost effective.

Austenitic SS has two types which are 200 series & 300 series. This type of SS has market share of above 70% of total stainless steel production.

200 series
Also called chrome manganese stainless steel which further has two types 201 & 202.
It’s an austenite series which has low Nickel content due to which it is cheaper than 300 series.
This series suffers from lower formability compared to 300 series however this can be improved with the addition of copper.

300 series
These stainless steels are austenitic. They can be hardenable only by cold working methods. As their major alloying elements these grades s have chromium around. 18 to 30% and nickel around 6 to 20%.
300 series SS sheets are corrosion resistant can survive at high temperatures and can be easily maintained. 300 series SS is preferred in the aerospace, construction & automotive industries.
304 grade & 316 grade are the most extensively used austenitic Steels.

400 Series
This group includes both ferritic as well as martensitic steels.
The 400 series of stainless steels consists of higher carbon content, which gives it a martensitic crystalline structure which in result gives high strength and more wear resistance.
400 series Ferritic steels are non hardening hence they are suitable for applications requiring high temperatures
400 series martensitic steels have ability to get hardened & are ideal for various common applications like cutlery,multi purpose tools.

How Stainless Steel Sheets are made

Stainless steel is one of the most recycled materials in the whole world. More than 80% of Stainless steel is recycled every year.

The Process

 

Melting, Casting & Grinding

To make ferritic steel iron & chromium is added and for austenitic steel Nickel is added to the mixing process. This mixture is then melted in electric furnace. Then it is refined & decarburized in AOD vessels by expelling oxygen, argon & nitrogen onto the steel.
Now the refined SS goes through continuous casting machines to produce SS slabs. These slabs can be subjected to grinding process to get rid of surface defects.

Hot rolling

Hot rolling is the process of metal working which is done at temperatures above recrystallization temperature of the material. Slabs are subjected to temperatures between 1100 to 1300 °C.

After which the slabs are rolled on a reversing four high mill to gauges of particular length. Once the proposed gauge is attained the material can be then coiled or cut into the plates.

Annealing, Pickling & Cold Rolling

These hot rolled products are the annealed (softened) & acid pickled (descaled) to produce the finished product.
Cold rolling is mostly carried out in cluster mills. These mills can measure strip thickness, flatness and profile, they also have different actuators to control the flatness and profiles of the coils. Cold rolling of the product gives shiny, smooth & cold pressed Stainless steel product.
To restore the properties of the product after cold rolling it is then heat treated to recover and recrystallize the deformed microstructure which is done in a continuous annealing & pickling line.

It is then processed through skin-pass mill which ensures a smooth surface.
The main purpose of skin pass rolling is to enhance the shape, remove smudge, surface finishing & to produce relevant mechanical properties.
These cold rolled SS coils are then cut into stainless steel sheets or smaller coils.

Final Processing

This is the stage where Stainless Steel Sheets/plate/coils are customized for customer’s requirements.
This may includes following processes:
-Edge trimming
-Leveling of a sheet/plate with roller leveler
-Cutting the coil in standard or tailored length sheets (Cut to length)
-Application of plastic coat for surface protection
-Grinding, Pattern rolling, Marking

Our Mission is to satisfy the needs of our customers

We are a highly professional supplier & exporter of the stainless steel sheets | plates |Coils which are made in world class mills across the world.

We are able to supply cut to size/length Stainless Steel sheets and in any quantity & finishing.

Material Brand Origin:
Europe, India, Japan, Korea, Taiwan,Thailand, United States

Material Manufacturers:

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