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Stainless Steel 304 | Product Overview
Introduction To Austenitic Stainless Steel 304
MOKSH TUBES & FITTINGS LLP is a premier manufacturer, supplier, exporter, importer, and stockist of Austenitic Stainless Steel 304 products including pipes, tubes, sheets, plates, bars, and fittings.
Austenitic Stainless Steel 304, is the most widely used austenitic stainless steel grade, known for its excellent corrosion resistance, good mechanical properties, and ease of fabrication. It contains high levels of chromium (18-20%) and nickel (8-12%), providing outstanding resistance to oxidation, corrosion, and various chemicals. SS 304 is non-magnetic in the annealed condition and maintains strength and toughness over a broad temperature range.
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Technical Specifications – Stainless Steel 304 (UNS S30400 / EN 1.4301)
| Category | Details |
|---|---|
| Material | Austenitic Stainless Steel 304 |
| UNS No. | S30400 |
| EN / DIN | 1.4301 |
| Alloy Type | Chromium–Nickel Austenitic Stainless Steel |
| Chromium | 18 – 20 % |
| Nickel | 8 – 12 % |
| Magnetic Properties | Non-Magnetic (Annealed) |
| Heat Treatable | ❌ No |
| Strengthening Method | Cold Working |
| Corrosion Resistance | Excellent |
| Weldability | Excellent |
| Typical Use | Food, Chemical, Structural Applications |
Chemical Composition of Stainless Steel 304
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Nitrogen (N) | ≤ 0.10 |
Physical Properties of Stainless Steel 304
| Property | Imperial Units | Metric Units |
|---|---|---|
| Density | 0.289 lb/in³ | 8.00 g/cm³ |
| Melting Point | 2550 – 2650 °F | 1399 – 1454 °C |
| Modulus of Elasticity | 28 × 10³ ksi | 193 GPa |
| Poisson’s Ratio | 0.27 | — |
Heat Treatment & Fabrication of Stainless Steel 304
| Process | Temperature Range | Purpose |
|---|---|---|
| Solution Annealing | 1010 – 1120 °C | Restore corrosion resistance |
| Cooling | Water / Rapid Air | Maintain austenitic structure |
| Stress Relieving | 300 – 450 °C | Reduce residual stress |
| Cold Working | — | Increase strength |
| Welding | TIG / MIG / SMAW | Excellent weldability |
📌 Stainless Steel 304 cannot be hardened by heat treatment; strength is increased by cold work.
Mechanical Properties of Stainless Steel 304 (Annealed)
| Property | Annealed | Cold-Drawn | Sheet |
|---|---|---|---|
| Tensile Strength | 485 – 620 MPa | 550 – 760 MPa | 515 – 690 MPa |
| Yield Strength (0.2%) | 205 – 310 MPa | 310 – 485 MPa | 240 – 415 MPa |
| Elongation | 40 – 60 % | 20 – 40 % | 35 – 55 % |
| Brinell Hardness | 120 – 180 | 160 – 210 | 140 – 190 |
| Rockwell Hardness | 80 – 95 B | 90 – 105 B | 85 – 95 B |
Available Forms & Size Range – Stainless Steel 304
| Product Form | Size Range |
|---|---|
| Pipes & Tubes | OD 6 – 600 mm, WT 1 – 40 mm |
| Sheets & Plates | 0.5 – 100 mm |
| Coils & Strips | 0.1 – 6 mm |
| Bars (Round / Flat / Hex) | Ø 6 – 350 mm |
| Wire & Mesh | Standard & custom |
| Fittings & Flanges | ASME / DIN |
| Custom Components | As per drawing |
International Standards & Equivalent Grades – SS 304
| Standard | Equivalent Grade |
|---|---|
| UNS | S30400 |
| ASTM | A240, A312, A276 |
| ASME | SA240, SA312 |
| EN | 1.4301 |
| DIN | X5CrNi18-10 |
| JIS | SUS 304 |
| BS | 304S31 |
| ISO | X5CrNi18-10 |
Products in Austenitic Stainless Steel 304
Austenitic Stainless Steel 304 is available in:
Austenitic Stainless Steel 304 products are produced to the following global standards:
Uses and Advantages
Excellent corrosion resistance to a wide range of environments
Good mechanical strength and toughness
Non-magnetic in annealed condition
Easy to weld, fabricate, and form
High ductility and impact resistance
Applications of Austenitic Stainless Steel 304
Austenitic Stainless Steel 304 finds widespread use in:
Food Processing & Beverage Industry
Equipment, storage tanks, and piping due to excellent hygiene and corrosion resistance.
Chemical & Petrochemical
Chemical tanks, heat exchangers, and process equipment exposed to mild corrosive media.
Architectural & Construction
Exterior cladding, handrails, and decorative elements due to attractive finish and weather resistance.
Automotive & Aerospace
Exhaust components, trims, and structural parts requiring corrosion resistance and strength.
Medical Equipment
Surgical instruments, hospital equipment, and implants due to biocompatibility and sterilization resistance.
Household Appliances
Sinks, cookware, and kitchen equipment for corrosion resistance and durability.
WHY CHOOSE US?
STAINLESS STEEL 304 PRICE PER KG (INDIA)
Typical Range: ₹180 – ₹350 per kg
(Price varies by OD, wall thickness, form, and finish)
Contact us for exact quotation based on size and quantity.
FAQ's
What is Austenitic Stainless Steel 304 and why is it widely used?
Austenitic Stainless Steel 304 is the most common stainless steel grade, known for its excellent corrosion resistance, durability, and ease of fabrication. With 18–20% chromium and 8–12% nickel, it resists rust, oxidation, and chemical attacks, making it suitable for food processing, chemical, medical, and construction industries.
What are the key properties of Stainless Steel 304?
SS 304 offers high tensile strength (485–620 MPa), excellent ductility, and toughness even at low temperatures. It is non-magnetic in the annealed condition, has good weldability, and provides long lasting corrosion resistance against water, mild chemicals, and atmospheric conditions.
Where is Stainless Steel 304 commonly used?
Stainless Steel 304 is widely used in food and beverage processing, chemical plants, medical equipment, construction, automotive, and household appliances. Typical applications include tanks, heat exchangers, kitchen sinks, cookware, architectural cladding, and surgical instruments.
Is Stainless Steel 304 corrosion resistant in all environments?
Yes, Stainless Steel 304 has excellent resistance to corrosion and oxidation in most environments. However, in highly saline or chloride-rich conditions, it may be prone to localized corrosion, where Stainless Steel 316 (with molybdenum) is often preferred.
Who is the leading supplier of Stainless Steel 304 in India?
Moksh Tubes & Fittings LLP is a trusted manufacturer, supplier, exporter, importer, and stockist of Stainless Steel 304 pipes, tubes, sheets, plates, bars, and fittings. With custom size availability, certified quality, and global delivery, Moksh Tubes & Fittings LLP ensures reliable supply for industrial and commercial applications.
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For inquiries or quotations on Austenitic Stainless Steel 304 products, contact Moksh Tubes & Fittings LLP — your reliable partner for stainless steel solutions.
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