Tolerance in Width

For Mill Edge For Slit Edge Range (In mm) 250 to 750 Range (In mm) 5 to 750 Tolerance ± 10 mm in mm Tolerance in width ref. to strip thickness
Width (In mm) Upto 1.00 1.00 to 1.75 1.75 to 2.50 2.50 to 3.00
5 to 10 0.20
11 to 50 0.20 0.20 0.30 0.30
51 to 100 0.20 0.20 0.30 0.30
101 to 200 0.25 0.25 0.30 0.30
201 to 300 0.25 0.25 0.30 0.30
301 to 500 0.40 0.40 0.40 0.40
501 to 600 0.50 0.50 0.50 0.50
601 to 750 0.50 0.50 0.50 0.50

 

Tolerance in Thickness

Strip Thickness (In mm) Maximum Strip Width Tolerance (In mm)
0.15 to 0.25 750 ± 0.03
0.25 to 0.70 750 ± 0.04
0.70 to 1.00 750 ± 0.05
1.00 & above 750 ± 5% of strip thickness

 

Mechanical Properties

Variants of Stainless Steel Flat Rolled Products
Austenitic: This type of stainless steel contains 300 Series type Chromium and Nickel. They also contain 200 Series type Chromium, Nickel and Manganese. Majority of such grade of stainless steel has the ability to get hard through cold-working and are not compatible of heat treatment. Such type of stainless steel is also nonmagnetic in nature in the annealed condition and possesses exceptional corrosion resistance qualities. The standard of such type of stainless steel grade comprise of chemical composition with 18% Chromium and 8% Nickel. Type 304 grade of stainless steel normally forms the core of this type of this metal group and is the most widely used alloy.

Ferritic: This type of stainless steels comprise of upfront 400 Series type Chromium,
making it difficult to harden. However such type of raw material is magnetic in nature and has superior ductility qualities. This grade of raw material is also corrosion and oxidation resistant. Type 430 grade forms the general-purpose stainless steel of this fraternity of metal group.

Martensitic: This type of stainless steels comprise of straight 400 Series type Chromium. It can be hardened by heat treatment and possesses magnetic, mild environment, and corrosion resistant persona. Type 410 grade forms the general-purpose stainless steel of this fraternity of metal group. And this type of raw material has comparatively good ductility.

Details of Mechanical Properties

Particulars UTS N/mm2 Min. 0.2% Proof Stress N/mm2Min. %Elongation on 50 mmGI Min. Hardness RB Max.
J/T (201 03% Ni) 820 390 20 93-97
J4 (201 1% Ni) 650 325 40 98
204Cu 620 310 40 95
204 620 217 40 95
J1 (202 4% Ni) 550 205 40 95
216L 607 352 50
301 515 205 40 95
304 515 205 40 92
304 H 515 205 40 92
304 L 485 170 40 92
310 515 205 40 95
310 S 515 205 40 95
316 515 205 40 95
316 L 485 170 40 95
316 Ti 515 205 40 90
321 515 205 40 90
410 450 205 20 95
420 690 15 96
409 380 170 20 88
410 S 415 205 22 89
430 450 205 22
Ferritic Grade
Martensitic Grade
Austenitic Cr – Mn*
Austenitic Cr – Mn*

Stainless Steel Alternatives

 

NO. 2E Finish

Hot rolled black coils are cold rolled, annealed, scale broken, shot blasted and pickled. Primarily used in manufacturing Tanks, Vessels, Industrial Structural Parts, Structural Parts for Vehicles and Ships, Conveyor Belts, etc.

NO. 2D Finish

Commonly used in industries like Automotive Components, Deep Drawing Parts, Building Components, Pipes and Tube making, etc. The prime characteristic of this raw material is that it is a cold rolled, annealed, pickled and dull finish product.

NO. 2B Finish

 

This type of stainless steel is cold rolled, annealed, pickled, and skin-passed so that it can have the required luster. The glossiness and flatness of this grade of stainless steel is superior then No.2D grade of products. This grade is widely used in Kitchen and Bathroom Accessories Industry, Surface Polishing, Furniture Industry, etc.

NO. 3 Finish

This grade of stainless steel raw material is produced by grinding No. 2D with the help of No. 100 – 120 grinding belt. Such type of stainless steel possess better glossiness and blinking coarse grain and is primarily used Exterior and Interior Decoration of Buildings, Electrical Appliances, and Kitchen Installations, etc.

NO. 4 Finish

This grade of stainless steel raw material is produced by grinding No. 2D with the help of No. 150 – 320 grinding belt. Such type of stainless steel possesses better glossiness and blinking coarse grain, however its grains are better than grade No. 3 products. Such type of stainless steel is also widely used in Elevator Decoration, Exterior and Interior Decoration of Buildings, Electrical Appliances, Kitchen Installations, Front Panels of Electrical Appliance front panel, etc.

HL Finish

This product type is made by grinding of No. 2D surface continuously with the help of polishing abrasive belt. Such raw material is usually used in Building Decoration, Elevator Decoration, etc.

BA Finish

This product type is cold-rolled, bright annealed, and skin passed. It has extremely high-quality surface glossiness and is widely used in Building Decoration, Making Home Appliance Products, and Kitchen Installation, etc.

Dull Finish

Dull finish in stainless steel is achieved by proper rolling of No. 2D or No. 2B surface using dull roll. When complete it gives the Matt finish look. It is prominently used in Building Decoration, Elevator Decoration, etc.

NO. 1 Finish

This type of steel is hot rolled, annealed, and pickled. It is mostly used as cold rolled material and is used in making Industrial Tanks and Devices in Chemical Industry.

Hot Rolled Steel Sheet

Hot rolled steel sheets possess finest qualities like properties like superior strength, better sturdiness, easy machinability, and enhanced weldability. Hot-rolled steel products are widely used in industries like Ship building, Automobile, Large Scale Public Infrastructure Projects, Building Construction, Machinery and Pressure Vessel, along with other Industrial Applications.

Cold Rolled Steel Sheet

The most widely used cold rolled steel sheets have greater processability. It also has superior flatness and excellent surface. Available in different thickness and width variants, cold rolled steel is essentially used across almost all the industries equally. This category of stainless steel is environmental friendly and is completely recyclable. It focuses on high technological content and is mainly available in forms like Hot Rolled Steel Sheet, Cold Rolled Steel Sheet, as also medium thickness Plate of Austenite, Ferrite and Martensite steel grades.