Automotive and Transport
Bus bodies, rail interiors, and exhaust heat shields start as SS sheet. Stainless Steel 409 Sheets & Plates handle exhaust heat economically, 439 and 441 cover welded hot joints, and 430 dresses trim.
About Stainless Steel Sheets & Plates
Stainless steel sheets and plates are flat-rolled products supplied as cut lengths rather than wound coils. Thickness and rolling route separate the two forms. Cold-rolled sheets carry the thinner gauges and smoother faces; hot-rolled plates cover heavier sections for tanks, structures, and process vessels. Chromium at 10.5% minimum builds a passive oxide film that repairs itself after scratches, so panels resist corrosion without coating.
Our Mumbai warehouse carries around 1000 tonnes of stock annually. CR sheets run 3.8 mm to 6 mm, HR plates run 6 mm and above, and heavier stainless steel plates are made-to-order. Standard widths cover 1000 mm, 1220 mm, 1500 mm, and 2000 mm, with lengths up to 6000 mm. Every consignment ships with mill documentation upon request.
Grades We Supply
Fifteen stainless steel grades across three families are reserved in our sheet and SS plate stock.
A
Austenitic Stainless Steel Sheets & Plates
10 gradesTen austenitic grades anchor the range, covering fabrication, chemical, and heat-facing duties.
Stainless Steel 301 Sheets & Plates
Cold work strengthens Stainless Steel 301 Sheets & Plates fast, suiting formed panels needing extra stiffness.
View gradeStainless Steel 304 Sheets & Plates
Stainless Steel 304 Sheets & Plates move faster than any other grade we stock, balancing corrosion resistance, formability, and price.
View gradeStainless Steel 304L Sheets & Plates
Fabricators weld Stainless Steel 304L Sheets & Plates into tanks without carbide precipitation, due to the lower carbon ceiling.
View gradeStainless Steel 309 Sheets & Plates
Furnace casings and combustion chambers use Stainless Steel 309 Sheets & Plates for scaling resistance.
View gradeStainless Steel 310S Sheets & Plates
Kiln linings and radiant sections keep Stainless Steel 310S Sheets & Plates in sustained high-temperature duty.
View gradeStainless Steel 316L Sheets & Plates
Molybdenum carries Stainless Steel 316L Sheets & Plates through chloride exposure, and low carbon keeps welded seams sound.
View gradeStainless Steel 317L Sheets & Plates
Extra molybdenum takes Stainless Steel 317L Sheets & Plates into scrubber linings and harsher acid streams.
View gradeStainless Steel 321 Sheets & Plates
Titanium stabilisation protects Stainless Steel 321 Sheets & Plates from intergranular attack after welding or heat soaks.
View gradeStainless Steel 347 Sheets & Plates
Niobium does the stabilising in Stainless Steel 347 Sheets & Plates, so refineries weld them for hot service.
View gradeStainless Steel 904L Sheets & Plates
Copper joins high nickel and molybdenum in Stainless Steel 904L Sheets & Plates to blunt sulphuric acid attack.
View grade
F
Ferritic Stainless Steel Sheets & Plates
4 gradesLow nickel keeps the four ferritic grades economical for exhaust, appliance, and trim work.
Stainless Steel 409 Sheets & Plates
Exhaust fabricators buy Stainless Steel 409 Sheets & Plates for moderate corrosion resistance at minimum alloy cost.
View gradeStainless Steel 430 Sheets & Plates
Appliance panels and architectural trim take Stainless Steel 430 Sheets & Plates for their clean, rolled surface.
View gradeStainless Steel 439 Sheets & Plates
A titanium addition lets Stainless Steel 439 Sheets & Plates weld cleanly in exhaust and heat exchanger fabrication.
View gradeStainless Steel 441 Sheets & Plates
Twin stabilisers hold weld integrity in Stainless Steel 441 Sheets & Plates through repeated exhaust heat cycles.
View grade
M
Martensitic Stainless Steel Sheets & Plates
1 gradeOne martensitic grade completes the fifteen, hardening by heat treatment instead of cold work.
Surface Finishes
The rolling route decides the finish: hot-rolled plates ship pickled (No.1), while cold-rolled sheets take the smoother finishes below.
HR
No.1 (HR Pickled)
Hot-rolled plates arrive annealed and pickled to a descaled matt-grey face for structural and process fabrication.
2B
2B
Annealing, pickling, and a light final pass give 2B sheets a smooth, semi-reflective surface, the default for CR stock.
BA
BA (Bright Annealed)
Bright annealing delivers a near-mirror surface straight from the line, saving polishing on decorative panels.
No. 4
No.4 brushed
Kitchen and elevator panel makers pick the No.4 brushed texture since fingerprints stay hidden.
Matte
Matte
Low reflectivity makes matte sheets the pick for transport interiors where glare distracts.
Industries We Serve for Stainless Steel Sheets & Plates
3 industrial sectors use most of the stainless steel sheets and plates leaving our warehouse. Corrosion exposure and temperature decide the grade.
Food Processing and Kitchen Equipment
Dairies and commercial kitchens fabricate counters, tanks, and hoods from Stainless Steel 304 Sheets & Plates, which shrug off daily washdown chemistry. Brine contact pushes buyers to 316L, and a 2B or No.4 brushed face suits food-contact surfaces.
Chemical and Petrochemical
Reactor shells, scrubber housings, and vessel cladding need proven chloride performance. Stainless Steel 316L Sheets & Plates cover most process streams; 317L takes harsher scrubber duty; 321 and 347 handle welded hot spots, and 904L serves sulphuric acid circuits.
Certifications of Stainless Steel Sheets & Plates
As a certified stainless steel sheet supplier in India, Riddhi Siddhi Impex backs every dispatch with 3 ISO certifications and mill-level traceability.
3.1EN 10204
Mill Test Certificate
Each dispatch carries an EN 10204 Type 3.1/ 3.2 mill test certificate traced to the originating heat. Type 3.2 comes on request.
9001ISO
ISO 9001
Our ISO 9001:2015 certification keeps quality management consistent from procurement to dispatch.
14001ISO
ISO 14001
Environmental practice across storage, cutting, and waste handling runs under ISO 14001:2015.
45001ISO
ISO 45001
ISO 45001:2018 governs occupational health and safety throughout our warehouse and processing operations.
Why Choose Riddhi Siddhi Impex?
Fast delivery
Best Quality
Availability of all materials
Frequently Asked Questions
What is the HS Code for Stainless Steel Sheets & Plates?
Flat-rolled stainless 600 mm or wider falls under HS heading 7219, which covers most sheets and plates; narrower material moves under 7220. Confirm the exact subheading with your customs broker.
Do you keep Stainless Steel Sheets & Plates in ready stock?
Yes, stainless steel sheets and plates stay in stock year-round as our two fastest movers. Standard dispatch takes 4 to 5 days; urgent orders leave in 2 to 3 days.
Can you slit Stainless Steel Sheets and Plates to custom sizes?
Yes. Beyond standard sizes such as 1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, and 2000 x 6000 mm, we cut sheets and plates to custom sizes on request.
Where can I buy Stainless Steel Sheets & Plates in India?
Riddhi Siddhi Impex has stocked and supplied SS sheets and plates from Mumbai since 2002, serving India and 60+ export markets. Call or WhatsApp our team for a quote within 24 hours.