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Seamless Steel Pipe

Are you looking for high quality seamless steel pipe, hot rolled seamless steel pipe, cold drawn seamless steel pipe, seamless carbon steel pipe and mild steel pipe? Whether manufacturing aircraft, ships, trains, automobiles, boilers, power stations, oil, steam, water, or mineral deposits for geological drilling, our company can provide you with seamless steel pipes in a variety of materials and specifications.Shandong Keshun Steel Pipe Co., Ltd.has got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.

  • Over 20 years experienced engineering development
  • Suitable for petroleum, chemical, steel, machinery, military, aerospace and other industries
  • Produced in strict accordance with international standards
  • Low MOQ
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Classification of seamless steel pipes

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

Seamless steel pipe Material:

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

Seamless steel pipe product details:

  1. Materials: 20#,45#,Q345B, GR.B, X42,X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, GR.6, STP430.
  2. Standard: GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454.
  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

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.

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.

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.

ASTM A53 Gr.B Black and hot-dipped zinc-coated steel pipes welded and seamless
ASTM A106 Gr.B Seamless carbon steel for high temperature service
ASTM SA179 Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes
ASTM SA192 Seamless carbon steel boiler tubes for high pressure
ASTM SA210 Seamless Medium-carbon boiler and superheater tubes
ASTM A213 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
DN2391 Cold drawn seamless prevision pipe
DIN 1629 Seamless circular unalloyed steel tubes subject to special requirements

Seamless steel pipe (4)


  1. We make goods according to the standards strictly, we don’t allow the unqualified goods to be out of our factory.
  2. We are in lower price for the same quality and in better service for the same price.
  3. Generally speaking, 18days in China and 25 days out of China in delivery time .
  4. There are special persons in charge of service after sales.We may answer you within 24 hours in China and 48 hours out of China if there is problem .
  5. There is No Risk Shopping in our company .
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