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Carbon Steel Seamless Pipe is a type of steel pipe that is manufactured without any welded joints or seams. It is produced by piercing a solid billet of carbon steel to create a hollow tube. The absence of a weld seam in seamless carbon steel pipes makes them stronger and more reliable for high-pressure and high-temperature applications compared to welded pipes.
Carbon Steel Seamless Tubing is ideal for a wide variety of industries and applications. The pipes are made of high-quality steel for excellent durability and corrosion resistance. We are available in a variety of diameters, so you can find the size that fits your needs. Carbon steel seamless pipes are widely used in nuclear installations, natural gas transmission, petrochemical, shipbuilding, and boiler industries, featuring high corrosion resistance and suitable mechanical properties. – Nuclear installations – gas delivery – Petrochemical industry – Shipbuilding and boiler industry
Product Description
| Product | Carbon Steel Seamless Pipe |
| Standards | AISI, ASTM, BS, DIN, EN, GB, JIS |
| Material Grades | Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345A(B) |
| Outer Diameter | 10.3-914.4mm |
| Wall Thickness | 1.24-63.5mm |
| Length | 5.8m/6m |
| Surface Treatment | Bare, Painting black, Varnished |
| Applications | General structure, mechanical structure, construction & infrastructure, water wall panel, economizer, superheater, boiler & heat exchanger tubes, liquid/gas/oil transportation, etc. |
| Packaging | Standard Export Package |
| MOQ | 1 Ton |
Carbon Steel Seamless Pipe Process Production:
The process begins with cutting a solid steel round or billet to length and then feeding it into a walking-beam reheat furnace, which reaches temperatures of nearly 2,300°F. After leaving the reheating furnace, the preheated round billet is turned into a tube shell by high-speed cross-rolling between two barrel rolls in a rotary piercer. The seamless shell enters the mandrel mill and rolls on the retained mandrel to provide the required outer diameter and wall thickness for the next process. The process is carefully monitored using a state-of-the-art thermal wall measurement system. The shells are then reheated for final shaping in a 24-stand draw reducer, where the outer diameter is formed to the customer’s exacting specifications. Verify wall thickness again using a hot wall measurement system. After rotating and advancing on the walking beam cooling bed, the pipes are cut in batches and transferred to the processing storage area, where they are carried by computer-controlled gantry cranes.
Standard of carbon seamless steel pipe
| ASTM A53 Gr.B | Black and hot-dipped zinc-coated steel pipesare welded and seamless |
| ASTM A106 Gr.B | Seamless carbon steel for high-temperature service |
| ASTM SA179 | Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
| ASTM SA192 | Seamless carbon steel boiler tubes for high pressure |
| ASTM SA210 | Seamless Medium-carbon boiler and superheater tubes |
| ASTM A213 | Seamless alloy-steel boiler, superheater, and heat-exchanger tubes |
| ASTM A333 GR.6 | Seamless and welded carbon and alloy steel pipe intended for use at low temperatures. |
| ASTM A335 P9,P11,T22,T91 | Seamless ferritic alloy-steel pipe for high-temperature service |
| ASTM A336 | Alloy steel forgings for pressure and high-temperature parts |
| ASTM SA519 4140/4130 | Seamless carbon for mechanical tubing |
| API Spec 5CT J55/K55/N80/L80/P110/K55 | Seamless steel pipe for casing |
| API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 | Seamless steel pipe for line pipe |
| DIN 17175 | Seamless steel tube for elevated temperature |
| DIN 2391 | Cold-drawn seamless precision pipe |
| DIN 1629 | Seamless circular unalloyed steel tubes subject to special requirements |
Application Of Carbon Steel Seamless Pipe:
Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.
– Nuclear device
– Gas conveyance
– Petrochemical industries
– Shipbuilding and boiler industries
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure









