• Introduction

Alloy pipes and fittings have excellent corrosion resistance and high strength, and are widely used in industries such as petroleum, chemical, power, and shipbuilding etc. The characteristics of alloy steel elbows mainly include the following aspects:

• Firstly, alloy steel pipe fittings have good pressure resistance and can withstand working conditions in high-pressure environments, ensuring the safe operation of the pipeline system.
• Secondly, alloy steel pipe fittings have excellent corrosion resistance, which can resist the erosion of acidic and alkaline media, prolong service life, and reduce maintenance costs.

In addition, alloy steel pipe fittings have the characteristics of good dimensional stability and easy installation, which can meet the needs of different occasions and improve the efficiency of engineering construction.

• Manufacturing process and working principle of alloy steel pipe fittings

The manufacturing process of alloy steel pipe fittings usually includes processes such as material preparation, forging or cold stamping, and heat treatment. The working principle is to change the direction of the pipeline to achieve fluid steering and maintain the normal operation of the pipeline system.

• ASTM A234 WP92 standard technical conditions for alloy steel pipe fittings

Steel grade: WP92
Chemical composition,%:
C: 007-0.13
Mn: 0.30-0.60
P: ≤ 0.020
S: ≤ 0.010
Si: ≤ 0.50
Cr: 8.5-9.5
Mo: 0.30-0.60
Ni: ≤ 0.40
Al: ≤ 0.02
B: 0.001-0.006
Nb: 0.04-0.09
N: 0.030-0.070
Ti: ≤ 0.01
W: 1.50-2.00
V: 0.15-0.25
Zr: ≤ 0.01
Tensile performance:
Tensile strength, MPa: 620-840
Yield strength, MPa: ≥ 440
Elongation rate:
Standard circular or proportional small-sized specimens,% in 4 D: longitudinal ≥ 20, transverse ≥ 13
Hardness: ≤ 269 HB
Heat treatment:
Normalizing and tempering. The normalizing temperature range is 1040 ° C-1080 ° C, and the tempering temperature range is 730 ° C-800 ° C.

• Alloy steel—Pipe fittings

• Application

Our company can produce carbon steel, stainless steel, and alloy steel pipe fittings according to standards such as ASME/ANSI, JIS, DIN, ISO etc. The varieties include equal diameter tees, reducing tees, tees, elbows, cross, concentric reducer, eccentric reducer etc. We provide the very best quality pipe and fittings, prompt delivery and reliable services at competitive prices.

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.