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Low price API 5L x65psl US Standard Seamless carbon steel tube

The raw material of seamless carbon steel pipe is round tube blank. The round tube blank shall be cut and processed by cutting machine, and the blank with a growth of about 1m shall be sent to the furnace for heating through conveyor belt.

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The raw material of seamless carbon steel pipe is round tube blank. The round tube blank shall be cut and processed by cutting machine, and the blank with a growth of about 1m shall be sent to the furnace for heating through conveyor belt. The billet is sent to the furnace for heating at a temperature of about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Temperature control in furnace is a key problem. After the round tube blank is discharged from the furnace, it shall be pierced through the pressure piercer. Generally, the more common piercer is the cone roll piercer. This kind of piercer has high production efficiency, good product quality, large perforation diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively rolled by three roll cross rolling, continuous rolling or extrusion. After extrusion, take off the pipe for sizing. The sizing machine rotates into the steel embryo at high speed through the conical drill to form a steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the sizing machine bit. After sizing, the steel pipe enters the cooling tower and is cooled by water spray. After cooling, the steel pipe will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydrostatic test) by the conveyor belt for internal flaw detection. If there are cracks, bubbles and other problems inside the steel pipe, they will be detected. Steel pipes should be strictly selected by hand after quality inspection. After the steel pipe is inspected, the number, specification, production batch number, etc. shall be sprayed with paint. And hoisted into the warehouse by crane.


Carbon steel pipe is to continuously strengthen the mechanical properties of carbon steel pipe by adjusting the carbon content, so as to produce carbon steel pipes for different purposes, which are determined according to the carbon content. Some can be used to manufacture mechanical structural parts, building structural parts and pipelines for conveying fluid. It is also widely used in agricultural irrigation and water conservancy projects.



API 5L, API 5CT, ASTM A106/A53, ASTM A519, JIS G 3441, JIS G3444,
JIS G3445 DIN 2391, EN10305, EN10210, ASME SA106, SA192, SA210, SA213,SA335, DIN17175, ASTM A179…


API 5L PSL1 / PSL2, API 5CT, ISO 9001-2008

Outside Diameter

1/8 – 36inch (10.3-914.4mm)

Wall Thickness



Random Length, Fixed Length, SRL, DRL


GR B, X42, X46, X52, X56, X60, X65, X70, X80

ASTM A53/A106




SA192 / SA209M

T1, T1a


P1, P2, P5, P9, P11, P22, P23


Gr.1, Gr.3, Gr.4, Gr.6, Gr.7, Gr.8, Gr.9, Gr.10, Gr.11

Mill Test Certificate

EN 10204/3.1B



〣Packing and transportation



1. How can I get a quotation from you?

You can leave us message, and we will reply every message in time. Or we may talk on line by Trademanager. And you can also find our contact information on contact page.

2. Can I get samples before order?

Yes, of course.Usually our samples are free. we can produce by your samples or technical drawings. We can build the molds and fixtures.

3. What is your delivery time ?

The time of delivery is usually around 1 month(1*40FT as usual).We can send out in 2 days, if it has stock.

4.What is your payment terms?

Our usual payment term is 30% deposite, and rest against B/L. L/C is also acceptatble. Exw,FOB, CFR, CIF, DDU.

5. How can you garantee what I got will be good ?

We are factory with 100% predelivery inspection which garantee the quality.And as golden supplier on Alibaba. Alibaba assurance will make garantee, which means alibaba will pay your money back in advance if there is any problem with the products.

6. How do you make our business long-term and good relationship?

1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them?

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Zhishang Steel Co., Ltd

ABOUT USOverviewThe company mainly deals in color-coated, galvanized, stainless steel pipes, stainless steel coils, stainless steel plates of various materials; hot-rolled series of rebar, medium and heavy plates, coils, I-beams, angle steels, channel steels, H-beams and other steel products and deep processing Service. (The company’s annual invent···

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