Steel Pipe with a hollow cross-section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the purpose, it is divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot rolling and cold rolling (drawing), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes.
Steel pipes are not only used to transport fluids and powdered solids, exchange heat energy, and manufacture mechanical parts and containers, but they are also an economical steel. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight, save 20-40% of metal, and realize factory-based mechanized construction. Using steel pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of protective coating, saving investment and maintenance costs.
| Product Name |
API 5L seamless steel pipe oil casting pipe/oil liquid Oil Casing |
| Product material |
Carbon steel |
| Standard |
DIN 1629, EN 10210-1,JIS 3445, GB/T 8162, ASTM A106/A53, API 5L |
| Grade |
GrA,GrB,X42,X52,X56,X60,X70 etc... |
| Usage |
For manufacture of pipelines, vessels, equipment, pipe fitting and steel structure |
|
|
| Standard |
Product Level |
Steel grade |
Yield Strength (min) Mpa |
Tensile Strength(MPa) |
| API 5L GB/T9711.2 |
PLS 1 |
A or L210 |
210 |
335 |
| B or L245 |
245 |
415 |
| x42 or L290 |
290 |
415 |
| X46 or L320 |
320 |
435 |
| X52 or L360 |
360 |
460 |
| X56 or L390 |
390 |
490 |
| X60 or L415 |
415 |
520 |
| X70 |
483 |
565 |
| PLS 2 |
BR or L245R |
245~450 |
415~760 |
| X42R or L290R |
290~495 |
415~760 |
| BN or L245N |
245~450 |
415~760 |
| X42N or L290N |
290~495 |
415~760 |
| X46N or L320N |
320~525 |
435~760 |
| X52N or L360N |
360~530 |
460~760 |
| X56N or L390N |
390~545 |
490~760 |
| X60N or L415N |
415~565 |
520~760 |
| X65N or L450N |
425~566 |
525~760 |
| X70 or L480 |
484~565 |
565~768 |
| X80 |
552~690 |
621~827 |
Carbon steel pipe: It is made of 10, 20, 30, 35, 45 high-quality carbon steel, 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steels hot-rolled or cold-rolled. Seamless pipes made of 10, 20 and other low-carbon steels are mainly used for fluid delivery pipelines. Seamless pipes made of 45, 40Cr and other medium-carbon steels are used to manufacture mechanical parts, such as stress-bearing parts of automobiles and tractors. Generally, carbon steel pipes must ensure strength and flattening tests. Hot-rolled steel pipes are delivered in hot-rolled or heat-treated states; cold-rolled steel pipes are delivered in heat-treated states.
Square tube is a name for square tube and rectangular tube, that is, steel tube with equal and unequal side lengths. It is made by rolling steel strips through processing. Generally, the steel strips are unpacked, flattened, curled, and welded to form round tubes, which are then rolled into square tubes and cut into required lengths.
Seamless Steel Pipe the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher the processing cost. Secondly, the process of the product determines its limited performance. Generally, seamless steel pipes have low precision: uneven wall thickness, low brightness of the inner and outer surfaces of the pipe, high cost of cutting, and pitting and black spots on the inner and outer surfaces are difficult to remove. Thirdly, its detection and shaping must be processed offline. Therefore, it has demonstrated its superiority in high pressure, high strength, and mechanical structure materials.
Spiral pipes are mainly used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. They are one of the 20 key products developed in China. For liquid transportation: water supply, drainage, sewage treatment projects, mud transportation, and marine water transportation. For gas transportation: coal gas, steam, and liquefied petroleum gas. For structural use: as pile pipes, bridges; pipes for docks, roads, building structures, and marine pile pipes, etc.
Galvanized steel pipe is a welded steel pipe with hot-dip or electroplated zinc layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oil fields, oil heaters, condenser coolers, coal distillation and washing oil exchangers for chemical coking equipment, as well as pier piles and support frames for mine tunnels.
Ductile iron pipe is a type of cast iron pipe. The quality requirement is that the spheroidization level of cast iron pipe should be controlled at level 1-3 and the spheroidization rate should be greater than 80%, so the mechanical properties of the material itself are well improved, with the essence of iron and the performance of steel. The metallographic structure of ductile iron pipe after annealing is ferrite plus a small amount of pearlite, with good mechanical properties, excellent anti-corrosion performance, good ductility, good sealing effect, easy installation, and mainly used for water supply, gas transmission, oil transmission, etc. in municipal and industrial and mining enterprises
SHANDONG BAOTAI METAL MATERIALS GROUP CO.,LTD was Located in Jinan, the capital of Shandong Province. Mainly engaged in stainless steel, carbon
steel, galvanized steel, PPGI, PPGL, copper, aluminum. Our team has focused on the steel industry for 15 years. The company has
established long-term close cooperative relations with well-known domestic steel companies. At the same time, the company's annual
spot reserve exceeds 1000,000 tons, so we can guarantee a short delivery time. Baotai Steel provides services for large
enterprises such as domestic government construction projects, Chinese listed companies, and state-owned enterprises. High-quality
products, low prices, and high-quality services are highly praised by customers. Customers from various countries have signed
agency agreements with Baotai Steel and become Baotai Steel's agents. Baotai Steel's service team is online 24 hours a day to
provide you with professional and high-quality services. At the same time, Baotai Steel also adheres to the concept of win-win,
customer-centric, and looks forward to becoming your trustworthy and high-quality enterprise.
Q1: What is your MOQ?
A: Usually our MOQ is one container, but it is different for some items, please contact us for details.
Q2:What is your terms of payment?
A:We usually accept T/T in advance, L/C for large sum.If you prefer other payments terms, please discuss.
Q3:What is your delivery time?
A:For products in stock, we can ship it within 7 days after receiving the deposit. For custom order, production time is 15-30 workdays after received the deposit.
Q4:How could you guarantee your products?
A:Mill Test Certification is supplied with shipment, We also accept and support the third-party inspection.We also could issue the warranty to customer to guarantee the quality.
Q5: Will all costs be clear?
A:Our quotation is easy to understand and will not incur any additional costs.
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