Stainless Steel 304 Round Bars Manufacturer, Supplier & Exporter in India
Stainless Steel 304 Round Bars are one of the most widely used stainless steel long products across industries due to their excellent corrosion resistance, strength, formability, and long service life. We manufacture, supply, and export a complete range of Stainless Steel 304/304L/304H Round Bar & Rods in various sizes, finishes, and standards to meet both domestic and international requirements.
With years of hands-on experience in stainless steel products, we understand what engineers, fabricators, and project managers actually need on-site—consistent quality, precise dimensions, and reliable material performance. That real-world experience is reflected in every SS 304 Round Bar we supply.
What is Stainless Steel 304?
Stainless Steel 304 is an austenitic chromium-nickel stainless steel known for its outstanding corrosion resistance, good mechanical strength, and excellent weldability. It contains approximately 18% chromium and 8% nickel, which gives it superior resistance to oxidation and corrosion in most environments.
We offer ASTM A276 Stainless Steel Bar and ASTM A479 Round Bar grades suitable for pressure vessels, structural use, and general engineering applications.
Stainless Steel 304 Grades We Offer
To suit different operating temperatures and applications, we supply multiple variants:
Stainless Steel 304 Round Bars
- General-purpose grade
- Excellent corrosion resistance
- Used in food processing, construction, and chemical industries
Stainless Steel 304L Round Bar
- Low-carbon version
- Ideal for welding applications
- Prevents carbide precipitation
- Available as 304L Stainless Steel Polished Round Bar
- Supplied as ASTM A276 Stainless Steel 304L Rods Exporter
Stainless Steel 304H Round Bar
- Higher carbon content
- Suitable for high-temperature applications
- Offered as ASME SA276 SS 304H Round Bar Supplier in India
Also available as ASTM A276 Stainless Steel 304H Hex Bar Supplier
Key Properties of Stainless Steel 304 Round Bars
- Excellent corrosion resistance
- Good tensile and yield strength
- High ductility and toughness
- Easy to machine and weld
- Performs well in cryogenic and high-temperature environments
- Long service life with low maintenance
These properties make SS 304H Round Bar Manufacturer in India products suitable for critical industrial use.
Applications of SS 304 / 304L / 304H Round Bars
Our Stainless Steel 304 Round Bars are widely used in:
- Food processing equipment
- Pharmaceutical machinery
- Chemical processing plants
- Oil & gas industries
- Heat exchangers
- Pressure vessels
- Construction and architecture
- Automotive components
- Marine applications
- Power generation plants
Engineers prefer ASTM A276 Stainless Steel 304L Rods for welded structures, while 304H bars are selected for elevated temperature services.
Manufacturing Process & Finishes
Our bars are produced using advanced manufacturing processes to match application needs:
Hot Rolled Bars
- Supplied as UNS S30400 Hot Rolled Bar Trader
- Suitable for heavy engineering and fabrication
Cold Rolled Bars
- Higher dimensional accuracy
- Better surface finish
- Supplied as ASTM A276 SS 304 Cold Rolled Round Bars
Bright Bars
- Smooth and polished finish
- Ideal for decorative and precision components
- Available as ASME SA276 SS 304 Bright Bar
Forged Bars
- Improved grain structure
- Higher strength
- Supplied as Stainless Steel 304 Forged Bar
Stainless Steel 304 Bars – Specifications Chart
| Standard | Specification |
| ASTM | ASTM A276 / ASTM A479 |
| ASME | ASME SA276 / SA479 |
| UNS Number | UNS S30400 |
| DIN | DIN 1.4301 |
| JIS | SUS 304 |
| Product Forms | Round Bar, Square Bar, Hex Bar, Flat Bar, Rectangular Bar |
| Manufacturing Process | Hot Rolled, Cold Rolled, Bright Drawn, Forged |
| Surface Finish | Black, Bright, Polished, Rough Turned |
| Condition | Annealed |
| Size Range | 3 mm to 500 mm (custom sizes available) |
SS 304 Bars – Chemical Composition Chart (% by Weight)
| Element | Composition (%) |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 18.00 – 20.00 |
| Nickel (Ni) | 8.00 – 10.50 |
| Iron (Fe) | Balance |
ASTM A276 Stainless Steel Bar – Mechanical Properties Chart
| Property | Value |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness (Brinell) | ≤ 201 HB |
| Hardness (Rockwell) | ≤ 92 HRB |
| Modulus of Elasticity | 193 GPa |
Stainless Steel 304 Forged Bars – Physical Properties Chart
| Property | Value |
| Density | 8.0 g/cm³ |
| Melting Point | 1400 – 1450°C |
| Thermal Conductivity | 16.2 W/m·K (at 100°C) |
| Specific Heat | 500 J/kg·K |
| Electrical Resistivity | 0.72 µΩ·m |
| Coefficient of Thermal Expansion | 17.2 µm/m·°C |
| Magnetic Properties | Non-magnetic (may become slightly magnetic after cold working) |
SS 304/304L/304H Product Forms & Shapes Available
We manufacture and supply stainless steel bars in a wide variety of shapes and finishes:
- SS 304 Round Bar
- SS 304 Bright Bar
- ASTM A276 SS 304 Cold Rolled Round Bars
- UNS S30400 Hot Rolled Bar
- SS 304 Forged Bar
- SS 304L Square Bar
- SUS 304 Square Bar
- Stainless Steel 304H Rectangular Bar
- SS ASTM A276 304L Flat Bar
- SS DIN 1.4307 Flat Bars
- ASTM A276 Stainless Steel 304H Hex Bar
- Stainless Steel UNS S30403 / S30409 Hex Bar
- WNR 1.4301 Hex Bar
- DIN 1.4301 Round Rods
- AMS 5639 Flat Bar Stock
Each product is manufactured with tight dimensional tolerances and inspected to ensure uniformity, straightness, and surface quality.
Standards & Specifications for SS 304 Round Bars
We strictly follow international standards to ensure quality and performance:
- ASTM A276 Stainless Steel Bar
- ASTM A479 Round Bar
- ASME SA276
- UNS S30400 / S30403 / S30409
- DIN 1.4301 / DIN 1.4307
- AMS 5639
- JIS SUS 304
As one of the trusted ASTM A479 Round Bar Suppliers in India, we ensure all materials meet required chemical and mechanical properties.
Why Choose Us as Your Stainless Steel Rod Manufacturer?
As a leading Stainless Steel Rod Manufacturer and Stainless Steel Round Bar Manufacturer in India, we focus on real customer needs, not just product supply.
- Decades of industry experience
- Strict quality control at every stage
- Ready stock of standard and custom sizes
- In-house testing and third-party inspection support
- Export-ready packaging
- Competitive pricing
- On-time delivery across India and overseas
We are also recognized as reliable 304L Stainless Steel Polished Round Bar Stockists and global exporters.
Stainless Steel 304 Round Bars Supplier and Traders in India
If you are looking for a dependable Stainless Steel 304 Round Bars supplier, manufacturer, or exporter in India, we are here to support your project with quality material, technical expertise, and responsive service. Our wide range of SS 304 / 304L / 304H Round Bars & Rods ensures you get the right product for the right application—every time. Whether you need SS 304 Bright Bar, SS 304L Square Bar, or 304H Hex Bar, we deliver exactly what your application demands.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality SS 304/304l/304h Bars. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
