High-Quality Rectangular & Square Section Tubes from China Suppliers - Quality Seamless Pipes at Our Factory Supplier, Manufacturers

Our factory, located in the North China Economic Development Zone, benefits from high-speed and convenient transportation options. Established in 2002 with a total investment of 120 million yuan, we have built a strong team consisting of 15 senior engineers and over 500 dedicated employees. We specialize in the production of seamless pipes in various specifications and materials, with outer diameters ranging from 40-108mm (wall thickness 12-30mm) to 210-426mm (wall thickness 20-50mm).

Currently, our inventory includes more than 15,000 tons of seamless steel pipes and 8,000 tons of ERW pipes, making us one of the leading suppliers in China. Our extensive range of materials includes 12CrIMoVG, 15CrMoG, 10CrMo910, Cr5Mo, A335P91, T91, and more, ensuring that we meet the diverse needs of our customers in various industries.

Product Description

Industrial Manufacturing & Supply Capacity
Advanced Production Facilities & Scale
Our production base was established in 2002 with a total investment of 120 million yuan. Supported by 15 senior engineers and a workforce of over 500 skilled employees, we specialize in a wide range of pipe specifications including outer diameters of 40-426mm and wall thicknesses of 12-50mm.
Stock Capacity: We maintain a consistent inventory of over 15,000 tons of seamless steel pipes and 8,000 tons of ERW pipes to ensure immediate delivery for global projects.
Available Steel Material Reference: 12CrIMoVG, 15CrMoG, 10CrMo910, Cr5Mo, A335P91, T91, A335P5, A335P11, 12Cr2MoWVTiB(102), CrMo, 15McuMoNb5(NB36), 40CrMnMo, 36Mn2V, Cr9Mo, 38CrMoA1, 3035CrMnSiA, 1Cr5Mo, 20CrNiMo, 25Cr2MoV, 35Mn2VNb, 37Mn5, 25MnCr, 40MnV, T11, T12, T22, T24, 30CrMo, 35CrMo, 15NiCuMoNiB5(WB36), 42CrMo, 30CrMo, 42CrMo, 38CrM.
Material Classifications & Standards
Oil & Geothermal Tubing
J55, K55, N80, L80, P110. X40-X70, L245, L360. Applicable for oil casing, geothermal casing, and pipelines.
Stainless Steel Material
0Cr18Ni9, 1Cr18Ni9Ti, 304, 304L, 310S, 316(0Cr18Ni12Mo2), 316L(00Cr17Ni14Mo2).
Carbon & Alloy Steel
Carbon: 10#, 20#, 35#, 45#. Alloy: Q345B, Q345D, 16Mn, 30Mn, 27SiMn, 20Cr, 40Cr.
High Pressure Boiler Tubes
20G, ST45.8-III, A106B, A106C. Specifically designed for high-stress boiler environments.
Manufacturing Specifications: Our processes strictly adhere to GB/T8162-2008, GB/T8163-2008, GB3087-2008, GB5310-1995, GB6479-2000, GB9948-88, GB5312-1999, as well as JIS, European, and American international standards.
Customized Special Specifications
Customized special specifications and thick-wall seamless pipes are available. Material options include 15CrMoG, 12CrlMoVG, cold drawn pipes, and hot expansion diameter seamless steel pipes.
12CrIMoVG(G), T12(ASTM), 15CrMoG(GB), 13CrMo44(DIN), Cr5Mo(GB), A335PII(ASTM), 12Cr2Mo(GB), 10CrMo910(DIN)
Frequently Asked Questions
What is your production capacity and current stock level?
Our facility currently maintains a raw material stock of over 15,000 tons of seamless steel pipes and 8,000 tons of ERW pipes, ensuring high availability and rapid turnaround.
What material grades do you provide for seamless pipes?
We offer a comprehensive range including Carbon Steel (10#, 20#, etc.), Alloy Steel (Q345, 16Mn, etc.), Stainless Steel (304, 316L, etc.), and specialized Alloy Boiler materials like 12Cr1MoVG.
Are your pipes suitable for oil and geothermal applications?
Yes, we supply pipes specifically for oil casing and geothermal tubing with grades such as J55, K55, N80, L80, and P110, as well as pipeline grades from X40 to X70.
Which international manufacturing standards do you follow?
We comply with multiple standards including GB national standards, JIS (Japanese), European, and American (ASTM/ASME) specifications for industrial pipe manufacturing.
Do you offer customization for thick-wall pipes?
Yes, we specialize in customized special specifications and special material thick-wall seamless pipes, including cold drawn and hot expansion processes.
What is your technical background?
Founded in 2002, our company features a team of 15 senior engineers and 500+ employees, managing a high-investment facility dedicated to precision steel products.

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