BS 3059 Grade 320 Tubes Supplier in India | BS 3059- 320 Seamless & ERW Boiler Tubes
Introduction to BS 3059 Grade 320 Tubes
BS 3059 Grade 320 Tubes are premium carbon steel tubes designed specifically for high-pressure and high-temperature applications. These tubes are manufactured according to BS 3059-1 Grade 320 Tubes standards, ensuring consistent quality, dimensional accuracy, and mechanical strength.
We supply these tubes in multiple forms, including BS 3059-1 Grade 320 Carbon Steel Seamless Tubes and welded variants such as ERW tubes. These products are widely used in industries like power plants, petrochemical plants, refineries, and heat exchanger systems.
As a trusted BS 3059-1 Grade 320 Pipes Supplier from India, we ensure every product meets strict quality standards and global industrial requirements.
What is BS 3059-1 Grade 320?
BS 3059-1 Grade 320 refers to a specification under British Standards for carbon steel tubes used in pressure applications. The “Grade 320” indicates the minimum tensile strength of the material, making it suitable for high-stress environments.
These tubes are primarily used in:
- Boilers
- Superheaters
- Heat exchangers
- Pressure vessels
They are known for their:
- High tensile strength
- Excellent thermal resistance
- Good weldability
- Long service life
Types of BS 3059 Grade 320 Tubes
We offer a complete range of BS 3059 Grade 320 Tubes to meet various industrial needs:
1. Seamless Tubes
- BS 3059-1 Grade 320 Carbon Steel Seamless Tubes
- Manufactured without welding seams
- Ideal for high-pressure applications
- Superior strength and uniform structure
2. ERW Tubes
- Carbon Steel BS 3059 Grade 320 ERW Boiler Tubes
- Produced using electric resistance welding
- Cost-effective and widely used
- Suitable for medium to high-pressure systems
3. Boiler Tubes
- Specially designed for boilers and heat exchangers
- Withstand extreme temperature and pressure
Chemical Composition of BS 3059 Grade 320 Tubes
| Element | Composition (%) |
| Carbon (C) | 0.16 – 0.22 |
| Manganese (Mn) | 0.70 – 1.20 |
| Silicon (Si) | ≤ 0.35 |
| Sulfur (S) | ≤ 0.035 |
| Phosphorus (P) | ≤ 0.035 |
Mechanical Properties of BS 3059-1 Grade 320 Tubes
| Property | Value |
| Tensile Strength | ≥ 320 MPa |
| Yield Strength | ≥ 195 MPa |
| Elongation | ≥ 20% |
Key Features of BS 3059 Grade 320 Tubes
High Strength
These tubes are designed to handle high pressure and stress without deformation.
Heat Resistance
They perform efficiently in high-temperature environments such as boilers.
Corrosion Resistance
Moderate resistance to corrosion ensures longer service life.
H3: Excellent Weldability
Perfect for fabrication and industrial assembly.
H3: Durability
Long-lasting performance reduces maintenance costs.
Applications of BS 3059 Grade 320 Tubes
BS 3059 Grade 320 Tubes are widely used across industries:
- Power generation plants
- Oil & gas refineries
- Petrochemical industries
- Boiler manufacturing
- Heat exchangers
- Pressure vessels
- Chemical processing units
Their ability to withstand extreme conditions makes them highly reliable.
Comparison with BS 3059 Grade 360 Tubes
While BS 3059 Grade 320 Tubes are highly versatile, higher grades like BS 3059 Gr. 360 ERW tubes offer enhanced strength.
| Feature | Grade 320 | Grade 360 |
| Tensile Strength | 320 MPa | 360 MPa |
| Application | Standard pressure | Higher pressure |
| Cost | Lower | Higher |
If your project requires higher strength, you can consider BS 3059 Grade 360 Boiler Tube Price in India for budgeting and selection.
Difference Between Seamless and ERW Tubes
| Feature | Seamless Tubes | ERW Tubes |
| Manufacturing | No weld | Welded |
| Strength | Higher | Moderate |
| Cost | Higher | Economical |
| Applications | Critical systems | General use |
BS 3059-1 Grade 320 Carbon Steel Seamless Tubes are preferred for critical operations, while Carbon Steel BS 3059 Grade 320 ERW Boiler Tubes are ideal for cost-effective solutions
BS 3059 Grade 320 Tube Specifications Chart
Below is the detailed specifications chart for BS 3059 Grade 320 Tubes, helping buyers quickly understand product standards and availability:
| Specification | Details |
| Standard | BS 3059-1 |
| Grade | 320 |
| Product Type | Seamless / ERW / Boiler Tubes |
| Material | Carbon Steel |
| Manufacturing Method | Cold Drawn / Hot Finished / ERW |
| Outer Diameter | 6 mm to 610 mm |
| Wall Thickness | 1 mm to 60 mm |
| Length | Single Random, Double Random, Cut Length |
| End Type | Plain End (PE), Beveled End (BE), Threaded |
| Surface Finish | Black, Pickled, Polished |
| Form | Round, Square, Rectangular |
| Heat Treatment | Normalized / Annealed |
| Testing | Hydrostatic, UT, Eddy Current |
| Application | Boilers, Heat Exchangers, Pressure Vessels |
| Origin | India |
| Certification | Mill Test Certificate (MTC), EN 10204 3.1 |
Quality Testing & Inspection
We follow strict quality control procedures to ensure reliability:
- Hydrostatic testing
- Ultrasonic testing
- Eddy current testing
- Chemical analysis
- Mechanical testing
- Visual inspection
Every tube is tested to meet international quality standards.
Advantages of Choosing Our BS 3059 Grade 320 Tubes
- Wide stock availability
- Competitive pricing
- Fast delivery
- Custom sizes available
- Strict quality control
- Experienced industry knowledge
We have years of experience supplying high-quality industrial tubes to various sectors.
Why BS 3059 Grade 320 Tubes Are in High Demand
The demand for BS 3059-1 Grade 320 Tubes is growing because of:
- Expansion of power plants
- Increasing oil & gas exploration
- Rising demand for heat exchangers
- Infrastructure development
These tubes provide a balance of strength, cost, and performance.
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 A210 Grade C Tubes. 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.
