STAINLESS STEEL
Non-Corrosive & Rust-Resistant Austenitic, Martensitic & Ferritic Stainless Steel Bars, Plates, Pipes & Forgings
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Non-Corrosive & Rust-Resistant
High Chrome & Nickel Alloying
Controlled Magnetisability
Superior Heat & Oxidation Resistance
~3x Density of Aluminium
Ready Stock
STAINLESS STEEL SUPPLIER IN MUMBAI
Stainless steel has different corrosion properties which include being non-corrosive, rust-resistant steel, which is simply designated as stainless steel. In comparison with aluminium, stainless steel is approximately 3 times heavier.
Stainless steel, like steel itself, is an alloy. An alloy always consists of different materials. Among the most frequent alloying elements in non-corrosive stainless steel is chrome, where nickel, molybdenum and further elements are used for special requirements.
The magnetisability, as well as the corrosion resistance, are two of these requirements which are controlled by the different alloys.
ROUND BARS
SQUARE BARS
HEX BARS
FLAT BARS
PLATES & SHEETS
STAINLESS STEEL CLASSIFICATION
CATEGORIES OF STAINLESS STEEL
Stainless steels are categorized by crystal structure and alloying composition into Austenitic (300/200 Series), Martensitic & Ferritic (400 Series), and High-Temperature Heat-Resistant Alloys.
AUSTENITIC STAINLESS STEEL (300 & 200 SERIES)
- Grades AISI 304/L, AISI 316/L, AISI 303, AISI 321, AISI 202
- Non-Magnetic, Superior Corrosion & Pitting Resistance
- High Ductility, Weldability & Formability
- Chemical Equipment, Marine, Food & Pharma
MARTENSITIC & FERRITIC STAINLESS STEEL (400 SERIES)
- Grades AISI 410, AISI 416, AISI 420, AISI 431, AISI 440B, AISI 446
- Magnetic, High Hardness & Heat Treatable
- High Tensile Strength & Wear Resistance
- Cutlery, Pump Shafts, Valves & Steam Turbines
HIGH-TEMPERATURE & HEAT-RESISTANT ALLOYS
- Grades AISI 310, AISI 330
- High Nickel-Chromium Alloy Composition
- Resists Scaling & Oxidation Up To 1150°C
- Furnace Liners, Kilns, Thermal Retorts & Heat Exchangers
INDUSTRIAL ADAPTABILITY
APPLICATIONS OF STAINLESS STEEL
Stainless steel products deliver unmatched durability, hygienic cleanliness, and corrosion resistance across demanding industries.
CHEMICAL & PETROCHEMICAL PROCESSING
FOOD, BEVERAGE & PHARMACEUTICAL
MARINE & OFFSHORE STRUCTURES
PUMP SHAFTS, VALVES & FITTINGS
ARCHITECTURAL & DECORATIVE HARDWARE
FURNACE & THERMAL EQUIPMENT
CUTLERY & SURGICAL INSTRUMENTS
AUTOMOTIVE EXHAUST & FASTENERS
GRADE FINDER
STAINLESS STEEL GRADES AVAILABLE
Use the options below to filter by series, search specific stainless steel grades, and request quick rates.
DATA SHEET
TECHNICAL INFORMATION
Detailed metallurgical specifications, chemical compositions, mechanical properties, and available sizes of our stainless steel products.
Typical chemical compositions of prominent Stainless Steel grades supplied by Steel Mart:
| Grade | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Carbon (C) | Other Additions |
|---|---|---|---|---|---|
| AISI 304/L | 18.0 – 20.0 % | 8.0 – 10.5 % | - | 0.03 % Max (L) | - |
| AISI 316/L | 16.0 – 18.0 % | 10.0 – 14.0 % | 2.0 – 3.0 % | 0.03 % Max (L) | Superior Chloride Resistance |
| AISI 410 | 11.5 – 13.5 % | 0.75 % Max | - | 0.08 – 0.15 % | Martensitic Heat Treatable |
| AISI 420 | 12.0 – 14.0 % | - | - | 0.15 – 0.40 % | High Hardness Cutlery Grade |
| AISI 310 | 24.0 – 26.0 % | 19.0 – 22.0 % | - | 0.25 % Max | High Temp Scaling Resistance |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Magnetism |
|---|---|---|---|---|
| AISI 304/L | 515 – 700 | 205 Min | 40 Min | Non-Magnetic (Annealed) |
| AISI 316/L | 515 – 710 | 220 Min | 40 Min | Non-Magnetic |
| AISI 410 (Q&T) | 650 – 850 | 450 Min | 15 Min | Magnetic |
| AISI 420 (Q&T) | 700 – 950 | 550 Min | 12 Min | Magnetic |
| AISI 310 | 520 – 750 | 205 Min | 40 Min | Non-Magnetic |
Round Bars: 6 mm to 400 mm diameter in ready stock.
Square Bars: 6 mm to 100 mm A/F.
Hexagonal Bars: 6 mm to 100 mm A/F.
Flat Bars: Thickness 3 mm to 80 mm; Widths up to 300 mm.
Plates & Sheets: Thickness 0.5 mm to 100 mm in 2B / HRAP finish.
We supply Stainless Steel products in multiple finish conditions depending on application demands:
- 2B / HRAP: Hot rolled annealed & pickled or cold rolled smooth finish for structural & process tanks.
- Bright Annealed (BA) & Mirror 8K: Highly reflective aesthetic finish for architectural & food processing equipment.
- Centerless Ground & Polished: Smooth tight tolerance (+/- 0.02mm) bright bar finish for pump shafts & turned parts.
Heat treatment considerations for stainless steel grades:
- Solution Annealing (Austenitic): Heat to 1010°C–1120°C and water quench rapidly to dissolve carbides and restore maximum corrosion resistance.
- Hardening & Tempering (Martensitic): Heat to 980°C–1040°C, oil/air quench and temper at 200°C–650°C for target hardness (40-55 HRC).
Key industrial applications for stainless steel grades:
- Chemical & Marine (304/L, 316/L, 321): Storage tanks, heat exchangers, marine hardware, offshore oil platforms, pharmaceutical reactors.
- Engineering & Heat Equipment (410, 420, 310, 330): Pump shafts, valve spindles, surgical tools, cutlery, industrial furnace retorts.
| American (AISI) | German (DIN / W-Nr) | British Standard (BS / EN) | Japanese (JIS) |
|---|---|---|---|
| AISI 304 / 304L | 1.4301 / 1.4307 | 304S31 / 304S11 | SUS 304 / 304L |
| AISI 316 / 316L | 1.4401 / 1.4404 | 316S31 / 316S11 | SUS 316 / 316L |
| AISI 410 | 1.4006 / X12Cr13 | 410S21 | SUS 410 |
| AISI 420 | 1.4021 / X20Cr13 | 420S37 | SUS 420J1 |
| AISI 310 | 1.4841 / 1.4845 | 310S31 | SUS 310S |
STEEL MART ADVANTAGE
WHY CHOOSE STEEL MART
Over 40 years of engineering supply chain leadership in industrial stainless steel stockholding.
40+ YEARS EXPERIENCE
Decades of metallurgical expertise providing premium metals and forgings since 1986.
READY STOCK
Huge warehouse inventory of standard configurations and diameters for immediate loading.
WORLDWIDE EXPORT
Trusted supplier shipping material batches across European, Middle Eastern, and Asian markets.
FAST DELIVERY
Optimized logistics networks ensuring secure and rapid material transit across India and globally.
NEED HELP SELECTING THE RIGHT STAINLESS STEEL GRADE?
Our metallurgical team is here to assist you in selecting the ideal stainless steel grade for your specific corrosion resistance, heat tolerance, and strength requirements.