GB/T5310 high-pressure seamless steel pipe: mainly used for manufacturing high-pressure steam boiler pipelines and other high-quality carbon structural materials.

Steel, alloy structural steel, and stainless heat-resistant steel seamless steel pipes are used in high-temperature and high-pressure conditions. Pipes are subjected to oxidation and corrosion under high-temperature flue gas and steam. Therefore, the steel pipes are required to have high durability, high oxidation resistance, and good structural stability. Commonly used steel grades include: high-quality carbon structural steel grades 20G, 20MnG, 25MnG; alloy structural steel grades 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB; and stainless heat-resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb. In addition to ensuring chemical composition and mechanical properties, finished steel pipes must undergo hydrostatic tests, expansion, and flattening tests. The pipes are delivered in a heat-treated state. Furthermore, there are certain requirements for the microstructure, grain size, and decarburization layer of the finished steel pipes.

Seamless steel pipes for geological drilling and petroleum drilling control are used to explore the structure of underground strata, groundwater, petroleum, natural gas, and mineral resources by drilling wells.

GB5310 high-pressure seamless steel pipe materials: 20G, 20MnG, 25MnG, 16Mn, 15MoG, 20MoG, 15CrMo, 15CrMoG, 12Cr1MoV, 12Cr1MoVG, Cr5Mo, 10CrMo910

GB5310 high-pressure seamless steel pipe (GB5310-12008) specifications: ∮16-824×2-65

Calculation formula for the weight of GB5310 high-pressure seamless steel pipe: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg/m (weight per meter)

Below are the various pipe materials provided by our company:

​Product Types

Seamless steel pipes, seamed steel pipes , pipes made of various types of carbon steel and other special metals

• Standard

GB/T 5310,EN10216-2

ASTM:A672,A691,SA106M,SA335M etc.

• Materials

20G,15CrMoG,12CrlMoVG

SA106-B,C

SA335-P11,P12,P22,P91,P92

15NiCuMoNb5-6-4

A691-11/4Cr,A691-21/4Cr,A672-B70

06Cr19Ni10,SA312-TP347H,304,316L

• Application

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Established in 2018 with a registered capital of 300 million yuan, Beijing Hownew Energy Technology Group Co., Ltd. owns three holding subsidiaries: Cangzhou Yuantuo Piping Equipment Co., Ltd., Beijing Shenfupeng Piping Equipment Development Co., Ltd., and Hownew Technology (Hong Kong) Co., Ltd. Hownew Group is a comprehensive enterprise integrating technology research and development, product manufacturing, production and sales, plus installation and maintenance. It specializes in providing professional piping and pipe fittings, as well as piping design, manufacturing, and installation and maintenance services for domestic and international boiler, power, chemical, gas, and solar thermal industries.
The company always adheres to the working attitude of "honesty and realism, professionalism and concentration, pragmatism and efficiency", and takes technical strength as the foundation, resource background as the basis for development, and customer needs as the future trend. It closely follows the characteristics of industry technology and industry development, and continuously optimizes the design. The company is dedicated to providing customers with the highest quality and most satisfactory services.

Hownew Technology (Hong Kong) Co., Ltd.: In 2019, in response to the national initiative of "One Belt and One Road" and the Group's expansion into international markets, Hownew Group established Hownew Technology (Hong Kong) Co., Ltd. in Hong Kong. This serves as the Group's platform for international business development. The company mainly offers pipes and pipe fittings (carbon steel, stainless steel, alloy steel) such as elbows, tees, bends, reducers, and crosses to industries such as power, petrochemical, chemical, petroleum, gas, solar thermal, and shipbuilding. All products adhere to American standard ASME (ANSI), European standard EN, German standard DIN, Japanese standard (JIS), and can also be customized according to specific customer needs.