Carbon Steel Seamless Pipe

Basic Info

Standard: Bs

Section Shape: Round, Oval

Place Of Origin: China

Application: Fluid Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe, Chemical Fertilizer Pipe, Structure Pipe

Additional Info

Packaging: Bundled or loose, airworthy packaged or meeting customer requirements

Transportation: Ocean

Supply Ability: Within 30 days, depending on the quantity of your order

Port: guangzhounansha

Product Description

el pipes are made of solid circular steel billets, which are heated and pushed or pulled into a shape until the steel is formed into a hollow tube. Then, the seamless tube is precision machined into size and wall thickness specifications, ranging from 1/8 inch to 32 inches in size. Carbon Steel Seamless Pipe is an alloy composed of iron and carbon. The percentage of carbon in steel affects the hardness, elastic strength, and ductility of carbon steel. Seamless carbon steel pipes or solid steel ingots are made by passing capillaries through holes and then hot rolling, cold rolling, or cold rolling. Seamless carbon steel pipes play an important role in China's steel industry. Seamless carbon steel pipes are round pipes, and the cutting machine embryo is cut into a rough billet with a length of about 1 meter, which is then transported by a conveyor belt for heating. The steel billet is sent into the heating furnace at a temperature of approximately 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a key issue. The circular tube comes out and is penetrated through the machine by air pressure. The most common punching machine is the conical roller piercing machine, which has high production efficiency, good product quality, large opening, and can wear various types of steel. When piercing, the round tube has been subjected to three rolls of cross rolling, rolling, or extrusion. Squeeze out the tube after sizing. Drill holes on the billet through high-speed rotating cones to form pipes. The diameter of the pipe is determined by the grinder to determine the length of the drill bit diameter. After the pipe is grouted, it enters the cooling tower and is cooled by water spraying. After the steel is cooled, it should be straightened. After the steel strip is sent, it undergoes internal testing using a straightening metal testing machine (or pressure test). If there are cracks, bubbles, and other problems inside the pipeline, they will be detected. After the pipe is made, strict quality control and manual selection are required. Steel quality, spray paint number, specification, production batch number. Entering the warehouse by crane Slotted Pipe, Casing, TubingSeamless ste

无缝管的壁厚

Wall thickness of seamless pipes

Quasi description
ASTM A179/A179M seamless cold drawn low alloy steel heat exchanger and condenser tubes.
5L pipeline pipe for active pharmaceutical ingredients.
ASTM A53M standard black and galvanized welded and seamless steel pipes.
ASTM A106 meter seamless Carbon Steel Pipe for high-temperature service.
ASTM A105M standard is used for carbon steel forgings in pipeline applications.
ASTM A234M is a forged carbon steel and Alloy Steel Pipe fitting suitable for medium to high temperature services.
ASTM 3799 standard is used for steel pipe fittings, screws, and socket welding in the petroleum industry.
For example, 1163 structural steel hollow profiles
Steel pipes and pipes used for ordinary working conditions, such as 1074
BS13872 threaded and sleeve steel pipes and pipes

Standard	Grade
ASTM A 53 M	A , B
ASTM A 106M	A, B, C
JIS G 3454	STPG 370, STPG 410
JIS G 3455	STPG370, STPG410, STPG480
JIS G 3456	STPG370, STPG410, STPG480

Grade: Chemical Composition (%):

Standard	Grade	C	Si	Mn	P	S	Ni	Cr	Cu	Mo	V
ASTMA 53M	A	≤0.25	-	≤0.95	≤0.05	≤0.045	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
ASTMA 53M	B	≤0.30	-	≤1.20	≤0.05	≤0.045	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
ASTM A 106M	A	≤0.25	≥0.10	0.27-0.93	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
	B	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
	C	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
JIS G 3454	STPG 370	≤0.25	≤0.35	0.30-0.90	≤0.040	≤0.040	-	-	-	-	-
JIS G 3454	STPG 410	≤0.30	≤0.35	0.30-1.00	≤0.040	≤0.040	-	-	-	-	-
JIS G 3455	STS 370	≤0.25	0.10-0.35	0.30-1.10	≤0.035	≤0.035	-	-	-	-	-
	STS 410	≤0.30	0.10-0.35	0.30-1.40	≤0.035	≤0.035	-	-	-	-	-
	STS 480	≤0.33	0.10-0.35	0.30-1.50	≤0.035	≤0.035	-	-	-	-	-
JIS G 3456	STPT 370	≤0.25	0.10-0.35	0.30-0.90	≤0.035	≤0.035	-	-	-	-	-
	STPT 410	≤0.30	0.10-0.35	0.30-1.00	≤0.035	≤0.035	-	-	-	-	-
	STPT 480	≤0.33	0.10-0.35	0.30-1.00	≤0.035	≤0.035	-	-	-	-	-

Surface treatment of steel pipe: In order to improve the service life of oil pipeline, surface treatment is usually carried out to facilitate the firm combination of steel pipe and anticorrosive coating.Common processing methods are: cleaning, tool derusting, pickling, shot blasting derusting four categories. 1 cleaningGrease, dust, lubricant, organic matter adhered on the surface of steel pipe, usually using solvent, emulsion to clean the surface.However, the rust, oxide skin and welding slag on the surface of the steel pipe cannot be removed, so other treatment methods are needed.Tool rust removalSteel pipe surface oxide, rust, welding slag, can use steel wire brush to clean and polish the surface treatment.Tool derusting can be divided into manual and power, manual tool derusting can reach Sa 2 level, power tool derusting can reach Sa3 level.If the surface of steel pipe is attached with a particularly strong oxide skin, it may be impossible to remove the rust with the help of tools, so we need to find other ways. 3 pickling Common pickling methods include chemistry and electrolysis.But only chemical pickling is used for pipeline corrosion protection.Chemical pickling can achieve a certain degree of cleanliness and roughness on the surface of steel pipe, which is convenient for subsequent anchor lines.Usually as a shot (sand) after reprocessing. 4 shot blasting for rust removalBy high power motor drive the high-speed rotating blades, steel grit, steel shot, segment, minerals and other abrasive wire under the action of centrifugal force on steel pipe surface spray and mass ejection, thoroughly remove rust, oxides and dirt on one hand, on the other hand, steel pipe under the action of abrasive violent impact and friction force, to achieve the required uniform roughness.Among the four treatment methods, shot blasting and derusting is an ideal treatment method for pipe derusting. Generally, shot blasting and derusting are mainly used for inner surface treatment of steel pipe, and shot blasting and derusting are mainly used for outer surface treatment of steel pipe.