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Seamless Steel Pipe

Seamless Steel pipes can be customized material and length. The warranty is long. The wall thickness is uniform and the quality is guaranteed.
Product name:Seamless steel pipe, seamless pipe, seamless carbon steel pipe, carbon seamless pipe, Hot rolled seamless steel pipe, Cold drawn seamless steel pipe, smls steel pipe, cs pipe, mild steel pipe, mild smls pipe
Materials:  GR.B, X42, X56, P11, P22, ST37, ST44, ST52, S235JR, S355JR, STP430.
Standard:API 5L, A106, A53, A335, A333, DIN1629, DIN2448, GOST8731, JIS G3454.
Product Details

Customizable length seamless steel pipe for sale is made of steel ingot or solid tube billet by perforation, and then hot rolling, cold rolling or cold drawing.

Customizable material seamless steel pipe product type:

Carbon seamless steel pipe, Alloy steel seamless pipe, Mild steel seamless pipe, Hot rolled seamless steel pipe, Cold draw seamless steel pipe, Wall thickness steel pipe, Thin wall seamless steel pipe

Different types of seamless steel pipe product details:

1.Materials: 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, GR.6, STP430 etc .

2. Standard: GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454 etc.

3. Specification:

Outer diameter: 1/4"- 40" (13.7mm-1016mm).

Wall thickness: 1.5mm-80mm.

Length: 2m- 12m.

4. End: plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp.

5. Surface: oiled, black painted or varnish, galvanized, 3PE, FBE, or other epoxy coating.

6. Process: hot-rolled, cold drawn, thermal expansion.

7. Inspection: hydrostatic testing, ultrasonic testing, eddy current testing, magnetic particle testing, impact testing, hardness testing, etc.

8.Application: petroleum, chemical, electric power, water, construction, pipelines, etc

High quality seamless steel pipe advantages

Shenlong seamless steel pipe has uniform wall thickness and no spiral marks on the inner wall of the pipe; the length of seamless steel pipe can be customized, with corrosion resistance and strong and durable performance. Our steel pipe inventory is always over 50,000 tons, with a complete range of specifications, short delivery time, and six testing procedures to ensure that the factory quality is all qualified.

High precision seamless steel pipe quality inspection:

1. Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate

2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the  production quality .

3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.

Cost-effective seamless steel pipe feature

Seamless steel pipe (SMLS) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam.The most advantage is increasing the ability of withstanding higher pressure.n improve material utilization, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jackets, etc., has been widely used to manufacture steel pipe.

Widely used for liquid, gas, and steam services both above- and below ground services.

Standard of precision seamless steel tube manufacturing


Black and hot-dipped zinc-coated steel pipes welded and seamless

ASTM A106 Gr.B

Seamless carbon steel for high temperature service


Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes


Seamless carbon steel boiler tubes for high pressure


Seamless Medium-carbon boiler and superheater tubes


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

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 temperture


Cold drawn seamless prevision pipe

DIN 1629 

Seamless circular unalloyed steel tubes subject to special requirements

seamless steel pipe supplier

Seamless steel pipe package service

We have two kinds of packaging:

1. Package suitable for every kind of transport;

2. According to customer's requirement.

seamless pipe manufacturer

Different classification of seamless steel pipes supply

① According to the shape of the section: round section tube, special-shaped section tube

② According to the material: carbon steel pipe, alloy steel pipe, stainless steel pipe, composite pipe

③ According to the connection method: threaded connection pipe, welded pipe

④ According to the production method: hot-rolled (extruded, topped, expanded) pipe, cold-rolled (drawn) pipe

⑤Divided by use: boiler tubes, oil well tubes, line tubes, structural tubes, fertilizer tubes  …

As a high precision seamless steel pipe manufacturer and supplier, different kinds of seamless pipes produced by Shenlong are well-known at home and abroad. Sincerely welcome to consult us!

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