Sep 29,2022

The C series alloys are nickel-chromium-molybdenum alloys.

Alloys can be used in environments with both oxidizing and reducing media.

Sep 29,2022

Comparison of 0.1mm/y isocorrosive lines

Active metals (titanium, zirconium, tantalum) have very good corrosion resistance, especially titanium materials have a wide range of applications in China, mainly used to replace some stainless steel can not adapt to the corrosion environment. However, TITANIUM PROVIDES PROTECTION MAINLY through the formation of a dense oxide film, which is vulnerable to corrosion in environments with strong reducing or high airtightness (lack of oxygen) (flange, gasket sealing face).

Sep 29,2022

Hastelloy® C-276 provides a solution to this problem.

Previously, the biggest obstacle to the development of Hastelloy alloy is that the alloy needs solution treatment after welding, otherwise the corrosion resistance of the welding heat affected zone will be greatly decreased, and welding is a necessary processing process in the production of the vast majority of equipment. Hastelloy® C-276 provides a solution to this problem.

Sep 29,2022

Corrosion resistant materials can be divided into non-metallic materials and metallic materials according to their properties.

In the 1970s and 1980s, corrosion-resistant alloys improved again and began to be specially optimized for different environments.

Sep 29,2022

Hastelloy alloys and their applications

Hastelloy®, the name of Hastelloy alloy, is a trademark of Haynes International (formerly Haynes Stellite Works). This one is made of HA in HAYNES,STELL in STELLITE and OY in ALLOYS. The first Hastelloy alloy invented by Haynes was Hastelloy® B, used in aircraft rocket nozzles. Following B alloy Hastelloy® C alloy has been rapidly and widely used in chemical industry. In addition to playing a major role in various chemical and petrochemical industries, the alloy has also been used in the nuclear energy industry and pharmaceutical industry. Haynes then went on to develop the Hastelloy® X alloy with excellent high temperature resistance and achieved great success. With the rapid growth of the jet industry at the time, this alloy became the engine manufacturer of choice. Some torches in the petrochemical industry are also made from it.

Sep 29,2022

Performance characteristics of stainless steel containing molybdenum element

Molybdenum - containing duplex stainless steel has good resistance to chloride stress corrosion under low stress. Generally, 18-8 austenitic stainless steel is prone to stress corrosion fracture in neutral chloride solution above 600C. Heat exchangers, evaporators and other equipment made of this kind of stainless steel in trace chloride and hydrogen sulfide industrial media are prone to stress corrosion fracture, while duplex stainless steel has good resistance.

Sep 15,2022

The time-honored brand has unleashed new vitality and made new contributions in the new era

Yan Qing, Member of the Standing Committee of the District CPPCC and Chairman of Tianjin Puyou Corporation: Study hard the meeting spirit and the 14th Five-Year Plan document. We should not only do our own work well without distractions, but also actively participate in the discussion of state affairs and make our own contribution in the new period of development!

Sep 15,2022

Puyou cordially invites you to attend China Building Science Conference and Green and Smart Building Expo!

You are cordially invited to attend China Building Science Congress cum Green and Smart Building Expo"

Sep 15,2022

"Taking advantage of the East Wind of CIIE, enterprises take off courageously" -- the 4th China International Import Expo of Puyou

Tianjin PuYou mechanical and electrical equipment co., LTD. (hereinafter referred to as PuYou) for 24 years development history, is the development, design, manufacture motor, pump and control equipment of the professional manufacturers, products are widely used in ocean petroleum, waterway dredging, underwater engineering, sand mining in deep-sea mining, desilting reservoir, fire fighting, mining, environmental protection and other fields, At present, it is a national high-tech enterprise and a new three board listed company. This year is the third time for Puyou to participate in China International Import Expo. Adhering to the concept of "quality drives development", Puyou has brought a series of advanced technologies and high-quality product information covering the fields of offshore oil, waterway dredging, special fire fighting, subsea engineering, environmental protection, mining and so on to the Expo. In addition to promoting Italian ELECTRAIMPIANTI S.R.L. In addition to the company's fire protection products and technology, Puyou also brought the self-developed deep-sea underwater motor and dredging pry technology. Due to the technical advancement and cutting-edge development of these two products, visitors' strong interest was aroused. Many people stopped in front of the booth and an endless flow of inquiries.

Sep 15,2022

Twenty-three years on, we have forged ahead

Time flies in a flash. When I look back, 23 years have passed. We started with nothing and suffered; Shed sweat, meet the challenge; To grow or develop rapidly; Forge ahead and meet the future.