About Us
Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
News
In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
Services
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
Available dimensions
Outside diameter: 6–101 mm
Wall thickness: 0.85–12.7 mm
Length: 1–27 m
Seamless heat exchanger tubes are used to transfer heat between fluids in equipment such as shell-and-tube heat exchangers, condensers, and feedwater heaters. Manufactured without a welded seam, they are supplied in specified outside diameters, wall thicknesses, and lengths to meet equipment design and operating requirements.
| Specification | Details |
|---|---|
| Product Type | Seamless Heat Exchanger Tubes |
| Manufacturing Process | Seamless, cold-drawn (ASTM A179/A179M tubes) |
| Standard | ASTM A179/A179M; other standards subject to availability |
| Outside Diameter | 6–101 mm, subject to applicable standard |
| Wall Thickness | 0.85–12.7 mm |
| Length | 1–27 m |
| Material | Low-carbon steel for ASTM A179/A179M tubes |
| Applications | Heat exchangers, condensers, feedwater heaters, and evaporators |
Eastern Steel supplies cold-drawn low-carbon steel heat exchanger tubes conforming to ASTM A179/A179M for a range of industrial heat-transfer applications.
The chemical composition of ASTM A179 seamless cold-drawn steel tubes shall conform to the requirements specified in the standard.
| Element | Symbol | Content (wt %) |
|---|---|---|
| Carbon | C | 0.06–0.18 |
| Manganese | Mn | 0.27–0.63 |
| Phosphorus (max) | P | 0.035 |
| Sulfur (max) | S | 0.035 |
ASTM A179 tubes shall meet the mechanical property requirements outlined below.
| Mechanical Property | Value (Metric) |
|---|---|
| Tensile Strength (min) | 325 MPa |
| Yield Strength (min) | 180 MPa |
| Elongation in 2 in. / 50 mm (min) | 35% |
| Hardness (max) | 72 HRB (137 HBW) |
Wall thickness tolerance shall conform to the requirements of ASTM A179 / ASME SA179 for seamless cold-drawn tubes.
| Outside Diameter, in. (mm) | Wall Thickness Tolerance (%) | |
|---|---|---|
| Over (+) | Under (−) | |
| 1 ½ in. (38.1 mm) and under | 20% | 0% |
| Over 1 ½ in. (38.1 mm) | 22% | 0% |
Have a drawing or bill of materials (BOM)? Send us your requirements for a quotation based on the specified tube dimensions, materials and standards.
Coordinate the sourcing of steel pipes, flanges and pipe fittings through one supplier for projects involving multiple product categories.
For non-standard dimensions or project-specific specifications, we can assess the requirements and coordinate suitable sourcing options.
E-mail: sales@eastern-steels.com
