Hot rolled carbon seamless pipe wholesale products AS106GR.B AS53GR.B AS106C L245NS SA201C seamless pipes
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- Supplier: Liaocheng Wanjintong Metal Material Co. Ltd.
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Product Overview
Description
Product Description
Seamless steel pipe is a steel pipe made by piercing and pressing the entire round steel, and there are no welds on the surface, which is called seamless steel pipe. According to production methods, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, top pipes, etc. According to different purposes, there are thick walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipe is widely used to manufacture structural parts and Machine element, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction.
Product | Seamless Pipe | ||
Seamless Pipe | China | GB/T8162/T8163 GB5310/6579/9948 | |
U.S.A. | ASTM A53/A106/A178/A179/A192/A210/A213/A333/A335/A283/A135/A214/315/A500/A501/A519/A161/A334; API 5L/5CT | ||
Japan | JIS G3452/G3454/G3456/G3457/G3458/G3460/3461/3462/3464 | ||
German | DIN 1626/17175/1629-4/2448/2391/17200 SEW680 | ||
Russia | GOST 8732/8731/3183 | ||
Material and Grade | China | 10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo,42Crmo, 27SiMn, 20CrMo | |
U.S.A. | Gr. B/Gr.A/A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130 | ||
Japan | STPG38,STB30,STS38,STB33,STB42,STS49,STBA23,STPA25,STPA23 | ||
German | ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3,13CrMo44, 1.0309, 1.0305, 1.0405 | ||
Russia | 10, 20, 35, 45, 20X | ||
Out Diameter | 10-1000mm | ||
Wall Thickness | 1-80mm | ||
Length | 1-12m | ||
Protection | Plastic caps | ||
Packing terms | Labeled and bundled together with steel strip | ||
Shipment terms | Containers or bundles by sea,one 20" container can load about 20 tons(5.8meters long),one 40" container can load about 23-25tons(less than 11.8meters long) | ||
Quality Certificate | ISO, API, Mill Test Certificate | ||
Surface Treatment | Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer | ||
Productive process
① The main production process of hot-rolled seamless steel pipes (△ main inspection process): pipe blank preparation and inspection △ → pipe blank heating → perforation → pipe rolling → steel pipe reheating → sizing (reduction) → heat treatment △ → finished pipe straightening → finishing → inspection △ (non-destructive, physical and chemical, bench inspection) → warehousing② The main production process of cold rolled (drawn) seamless steel pipes: blank preparation → acid washing and lubrication → cold rolling (drawing) → heat treatment → straightening → finishing → inspection
The production process of general seamless steel pipes can be divided into two types: cold drawing and hot rolling. The production process of cold rolled seamless steel pipes is generally more complex than hot rolling. The pipe blank first needs to undergo three-roll continuous rolling, and after extrusion, it needs to undergo diameter testing. If there are no response cracks on the surface, the round pipe needs to be cut by a cutting machine, cutting a billet with a length of about one meter. Then enter the annealing process, where acidic liquid is used for pickling. During pickling, attention should be paid to whether there is a large amount of blistering on the surface. If there is a large amount of blistering, it indicates that the quality of the steel pipe does not meet the corresponding standards. The appearance of cold-rolled seamless steel pipes is shorter than that of hot-rolled seamless steel pipes. The wall thickness of cold-rolled seamless steel pipes is generally smaller than that of hot-rolled seamless steel pipes, but the surface looks brighter than thick walled seamless steel pipes, with no too much roughness on the surface and no too many burrs on the diameter.
The delivery status of hot-rolled seamless steel pipes is generally after heat treatment in the hot-rolled state. After undergoing quality inspection, hot-rolled seamless steel pipes must undergo strict manual selection by the staff. After the inspection, the surface must be coated with oil, followed by multiple cold drawing experiments. After hot rolling treatment, perforation experiments must be conducted. If the perforation and expansion are too large, straightening and correction must be carried out. After straightening, it is transported by the conveyor device to the flaw detection machine for flaw detection experiments. Finally, labels are attached, specifications are arranged, and placed in the warehouse.
Product advantages
High quality
Our factory has high-quality carbon steel rods and other raw materials, and the production process is checked layer by layer. Multiple quality inspections are carried out layer by layer, and after the quality inspection, strict manual selection by the staff is required. After the quality inspection, the surface is coated with oil, followed by multiple cold drawing experiments, hot rolling treatment, and perforation experiments. If the perforation diameter is too large, straightening and correction must be carried out. After straightening, it is transported by the conveyor device to the flaw detection machine for flaw detection experiments. Finally, labels are attached, specifications are arranged, and placed in the warehouse.
Short production cycle and fast delivery
Our factory has multiple production lines that produce at the same time, reducing losses in production, shortening production cycles, and meeting customer production needs. The produced carbon steel tube will be quickly packaged and arranged for shipment, striving for the earliest possible delivery to customers.
Standard export packaging，or customized
Our factory generally adopts standard export packaging or customized packaging according to customer needs. Be careful during the
shipping process to ensure that the product does not show scratches. Fast delivery speed.
shipping process to ensure that the product does not show scratches. Fast delivery speed.
Multiple processing methods
Our factory can provide various treatments such as cutting, slitting, galvanizing, etc., which can meet customers' various production needs
Company Introduction
Liaocheng Wanjintong Metal Material Co., Ltd
Liaocheng Wanjintong Metal Material Co., Ltd. is the professional manufacturer of Carbon steel seamless pipe in China since 2015. The factory covers an area of over 20000 square meters and has over 300 workers. We can provide cutting, slitting and other non-standard processing services.
Also as a factory, Liaocheng Wanjintong has always been committed to offering clients at home and abroad the products of high quality involved in metal materials, metal products and the top-ranking service in accordance with the management concept of “quality, professionalism and sincerity”. The company is a manufacturer foreign trade cooperation. Building up wide international marketing network abroad, the products are mainly exported to Southeast Asia, Africa, Europe, North America and countries in the Middle East. By virtue of wide commodity information network, the company has partners around the world and has long-term and stable business with many overseas clients.
Also as a factory, Liaocheng Wanjintong has always been committed to offering clients at home and abroad the products of high quality involved in metal materials, metal products and the top-ranking service in accordance with the management concept of “quality, professionalism and sincerity”. The company is a manufacturer foreign trade cooperation. Building up wide international marketing network abroad, the products are mainly exported to Southeast Asia, Africa, Europe, North America and countries in the Middle East. By virtue of wide commodity information network, the company has partners around the world and has long-term and stable business with many overseas clients.
Workshop photo
Product Inspection
Certifications
Customer Reviews
Product packaging
Packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required | |||||||
shipping | 1.Shipping by containers | |||||||
2.Shipping by bulk ship | ||||||||
The packaging method can be customized according to customer requirements | ||||||||
FAQ
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:How long does your delivery time take?
A:In general, our delivery time is within 7-20 days, and may be delayed if the demand is extremely large or special circumstances occur.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
Q:How to pack the products?
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation, or customize according to customer needs.
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:How long does your delivery time take?
A:In general, our delivery time is within 7-20 days, and may be delayed if the demand is extremely large or special circumstances occur.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
Q:How to pack the products?
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation, or customize according to customer needs.
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