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Seamless Steel Pipe | High Pressure Hot Rolled & Cold Drawn Carbon Steel Tube for Oil, Chemical & Power Industry
Product Introduction
Seamless steel pipe is a long steel product with a hollow cross-section and no joints around its perimeter. It is mainly manufactured by hot rolling or cold rolling processes. Hot-rolled seamless steel pipes are produced by heating solid billets, piercing them, and then rolling; cold-rolled (cold-drawn) seamless steel pipes are further processed on the basis of hot rolling to improve dimensional accuracy and surface quality. It is an essential material for fluid transportation and structural use in modern industry.
Product Advantages
1. High Strength
Capable of bearing high pressure and stress, suitable for high-pressure and high-temperature working conditions.
2. Excellent Sealing Performance
Without welded seams, it effectively prevents leakage and ensures high reliability.
3. Superior Surface Quality
Cold-drawn seamless pipes have a smooth surface, reducing fluid resistance during delivery.
4. High Dimensional Precision
Good roundness and tight tolerance, meeting strict requirements for precision applications.
FAQs
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Q1: What production processes do you use for seamless steel pipes?
A1: We mainly use hot rolling and cold drawing processes. Hot rolling is for general heavy-duty pipes; cold drawing improves precision and surface finish for high-standard projects.
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Q2: Are your seamless steel pipes suitable for high-pressure fluid transportation?
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Q3: Can you customize the specifications of seamless steel pipes?
Application Scenarios
Our seamless steel pipes are widely used in petroleum, chemical, electric power, machinery manufacturing, aerospace, and other industries. Typical applications include oil transmission pipelines, chemical reactor tubes, boiler tubes for power stations, hydraulic cylinder barrels, and other high-pressure fluid and structural parts.
Factory Tour
Product Specifications
| Parameter Items | Data |
| Product Name | Seamless Steel Pipe |
| Material | 20#, 45#, Q345B Carbon Steel, Alloy Steel, Stainless Steel (Customizable) |
| Production Process | Hot Rolled, Cold Rolled / Cold Drawn |
| Outer Diameter | 6mm – 630mm (DN10–DN500), Customizable |
| Wall Thickness | 1mm – 100mm, Customizable |
| Standard Length | 6m / 12m per piece, Custom Cutting & Random Length Available |
| Executive Standard | GB/T8162, GB/T8163, ASTM A106, ASTM A53, DIN 1626, JIS G3454, EN 10210 |
| Surface Treatment | Black Phosphating, Polishing, Anti-rust Oil, Galvanized (Optional) |
| Working Temperature | -20℃ ~ 600℃ |
| Pressure Resistance | High Pressure Grade, Suitable for High Temperature & High Pressure Working Conditions |
| Tensile Strength | ≥450MPa |
| Yield Strength | ≥345MPa |
| Hardness | HB 130–200 |