Seamless Pipe
Astm Carbon Steel Seamless Steel Pipe For Construction Seamless Tube Seamless Pipe
SMSTEELProduction Processes of Seamless Steel Pipes
The production processes of seamless steel pipes mainly include hot rolling and cold drawing (rolling).
1. Hot-Rolled Seamless Steel Pipes
Hot-rolled seamless steel pipes are made from round pipe billets, which are heated and pierced through a piercing machine, followed by multiple passes of rolling, cooling, and straightening, ultimately forming seamless steel pipes. The main advantages of hot rolling are the ability to produce large diameter and thick-walled seamless steel pipes, high production efficiency, and relatively low costs.
2. Cold-Drawn (Rolled) Seamless Steel Pipes
Cold-drawn (rolled) seamless steel pipes are formed through multiple cold drawing (rolling) processes at room temperature. The cold drawing (rolling) process can produce seamless steel pipes with high dimensional accuracy and smooth surface finish, and their mechanical properties and microstructure are more uniform. However, the production efficiency of cold-drawn (rolled) seamless steel pipes is lower, and the production costs are higher, making them suitable for applications requiring high precision and surface finish.
SMSTEELProduct parameters
Standard |
API 5L: ASTM, BS, JIS, DIN |
Steel Grade |
API 5L Grade B/ASTM A 106B/A53; ASME B36, 10N-1996; GB8163-1999 |
O.D. |
10MM-920MM |
W.T. |
2MM-40MM |
Length |
5m—12m or as per customer’s requirements |
End protection |
Plastic caps |
|
Outside Coating |
black painting, anti-corrosion oil, galvanized or as per required by customer |
Packing |
in bundles tied with steel stripes |
Certificates |
API 5L; ISO9001;2000 |
|
Production Capacity |
Three factories with full production capacity, 200.000tons per year |
Delivery time |
Within 30-60 days after signing the contract or as your requirement |
Application |
Seamless steel pipes for low and medium pressure boiler, high pressure boiler, and ship building, liquid service, petroleum cracking, chemical fertilizer equipment, drawing-oil-equipment and structure purposes. |
Qualification |
Independent import and export qualifications |
SMSTEELClassification of Seamless Steel Pipes
Seamless steel pipes can be classified based on different standards and purposes.
1. Classification by Material
Seamless steel pipes can be classified according to their material, with common materials including carbon steel, alloy steel, and stainless steel.
● Carbon Steel Seamless Steel Pipes: Primarily used for fluid transportation pipelines and structural components. Carbon steel seamless steel pipes offer good mechanical properties and lower costs, making them the most widely used type of seamless steel pipes.
● Alloy Steel Seamless Steel Pipes: Mainly used under high-temperature and high-pressure conditions. Alloy steel seamless steel pipes offer high strength and heat resistance, suitable for the petroleum, chemical, and boiler industries.
● Stainless Steel Seamless Steel Pipes: Possess excellent corrosion resistance, widely used in fields such as food, pharmaceuticals, and chemicals that require high hygiene and corrosion resistance.
2. Classification by Production Process
● Hot-Rolled Seamless Steel Pipes: Suitable for producing large-diameter and thick-walled seamless steel pipes, commonly used for fluid transportation and mechanical parts manufacturing.
● Cold-Drawn (Rolled) Seamless Steel Pipes: Suitable for producing small-diameter and thin-walled seamless steel pipes, mainly used in precision machinery manufacturing and high-pressure equipment.
3. Classification by Application
● Structural Seamless Steel Pipes: Mainly used for general structures and mechanical structures.
● Fluid Transportation Seamless Steel Pipes: Mainly used for transporting water, oil, gas, and other fluids.
● Boiler Seamless Steel Pipes: Mainly used for manufacturing superheaters, reheaters, steam pipes, etc., in high-pressure and ultra-high-pressure boilers.
● Fertilizer Equipment Seamless Steel Pipes: Mainly used for manufacturing high-pressure transmission pipelines and equipment.
SMSTEELApplication Fields of Seamless Steel Pipes
Due to their excellent mechanical properties and corrosion resistance, seamless steel pipes are widely used in the following fields.
1. Oil and Gas Industry
The oil and gas industry is one of the largest users of seamless steel pipes. Seamless steel pipes are used in drilling, extraction, transportation, and refining processes. Their high strength and pressure resistance enable them to withstand high pressures and corrosive media, ensuring the safety and efficiency of oil and gas transportation.
2. Chemical and Power Industries
In the chemical and power industries, seamless steel pipes are mainly used for pipelines and equipment under high-temperature and high-pressure conditions. Alloy steel and stainless steel seamless steel pipes are widely used for manufacturing chemical reactors, heat exchangers, boiler pipelines, etc., due to their heat and corrosion resistance.
3. Machinery Manufacturing
In the machinery manufacturing industry, seamless steel pipes are mainly used for producing various mechanical parts and structural components. Their high strength and excellent mechanical properties make them ideal materials for key components such as bearings, gears, and drive shafts.
4. Construction and Infrastructure
In the construction and infrastructure fields, seamless steel pipes are primarily used for structural support and pipeline transportation. Their high strength and durability enable them to withstand heavy loads and harsh environments, widely used in bridges, tunnels, steel structures, and buildings.
SMSTEELPRoducts display
