BS 3059 Grade 320 Tubes are manufactured according to the British Standards that are specified for boilers, superheaters, and heat exchangers. They are popularly referred to as CS Pipes and MS Pipes in the industry. These pipes have been manufactured using low carbon steel and consist of maximum 0.16% carbon and 0.30 to 0.70% of manganese. These grades of pipes offer superior formability along with ease of processing without any reduction in their strength. BS 3059 Grade 320 Tubes can be either seamless or ERW (Electric Resistance Welded) types of tubes that have a minimum yield strength of 320 N/mm². Therefore, they have proved to be very good for medium pressure and high temperatures. The tubes have undergone thorough tests of chemical, mechanical, and hardness. As one of the leading suppliers of steel pipes in the market, Amardeep Steel Centre offers these pipes in various shapes, sizes, and dimensions.
Technical Data
Specifications of BS 3059 Grade 320 Tubes
| Specification | Details |
|---|---|
| Standard | BS 3059 Part 1 / BS 3059-1 |
| Material Grade | Grade 320 |
| Product Type | Carbon Steel Boiler & Heat Exchanger Tube |
| Tube Type | ERW / Seamless (as per requirement) |
| Material | Low Carbon Steel |
| Carbon Content | Maximum 0.16% |
| Manganese Content | 0.30–0.70% |
| Form | Round Tubes |
| Surface Finish | Black, Bare, Oiled, Pickled, or Coated |
| Outside Diameter | As per BS 3059 Part 1 Standard |
| Wall Thickness | As per BS 3059 Part 1 Standard |
| Length | Single Random, Double Random, or Cut Length |
| Temperature Service | Moderate to Elevated Temperature Applications |
| Primary Applications | Boilers, Heat Exchangers, Condensers, Steam Pipelines, Pressure Equipment |
Chemical Composition of BS 3059 Grade 320 Tubes
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| max 0.16 | 0.10 - 0.35 | 0.30 - 0.70 | 0.04 | 0.04 | — | — | — | — | — |
BS 3059 Grade 320 Tubes Mechanical Properties
| Yield Strength (MPa min) | Yield Strength (ksi min) | Tensile Strength (MPa min) | Tensile Strength (MPa max) | Tensile Strength (ksi min) | Elongation A5 min (Percentage) |
|---|---|---|---|---|---|
| — | — | 320 | 480 | — | 25 |
Equivalent Grades of BS 3059 Grade 320 Tubes
| DIN | EN | BS | NFA | ASTM | ASME |
|---|---|---|---|---|---|
| DIN 17175 Grade St 35.8 | — | NFA A 49-213 Grade TU 37-c | — | ASTM A 369 Grade FPA | ASME A 369 Grade FPA |
Applications and Industrial Uses of BS 3059 Grade 320 Tubes
- Thermal Power Plants
- Oil Refineries
- Petrochemical Plants
- Chemical Processing Plants
- Sugar Mills
- Pulp & Paper Mills
- Food Processing Plants
- Pharmaceutical Manufacturing Plants
Frequently Asked Questions
What are BS 3059 Grade 320 Tubes?
BS 3059 Grade 320 Tubes are carbon steel tubes designed for boilers, heat exchangers, and other pressure applications.
What is BS 3059 Grade 320 material?
BS 3059 Grade 320 is a low-carbon steel material that offers good strength, weldability, and formability.
What are the applications of BS 3059 Grade 320 Tubes?
These tubes are commonly used in boilers, heat exchangers, condensers, steam pipelines, and process equipment.
Are BS 3059 Grade 320 Tubes suitable for boiler applications?
Yes. They are specifically manufactured for boiler and heat exchanger service.
What is the difference between BS 3059 Grade 320 and BS 3059 Grade 360 Tubes?
Grade 360 offers higher mechanical strength than Grade 320, making it suitable for more demanding pressure applications.
Are BS 3059 Grade 320 Tubes seamless or ERW?
BS 3059 Grade 320 Tubes are available in both seamless and ERW (Electric Resistance Welded) forms.
