20CrNi2Mo High Strength Forged Flanges – Free Forging for Chemical Industry

42CrMo 20CrNi2Mo Custom Forged Steel Flanges High-Strength Design Applicable To Energy, Chemical Industry

1. Wind Turbine Main Shafts – 42CrMo Forgings

We manufacture wind turbine main shafts using premium 42CrMo and alloy steels through open die forging. Designed to withstand high torque, axial loads, and long-term fatigue, our forged shafts deliver exceptional mechanical strength and reliability in harsh wind farm environments.

All forgings are available in custom lengths and diameters, support small-batch orders, and include full material certificates (EN10204 3.1/3.2). With in-house rough machining and strict quality control, we ensure each shaft meets your exact technical standards. Regular exports to Europe and Latin America available.

The 42CrMo ,20CrNi2Mo(raw materials can be customized as required) high-speed flange is specifically designed for use in high-performance mechanical systems such as gearboxes, turbines, and rotating equipment. Manufactured through precision open-die or closed-die forging processes, this flange ensures excellent fatigue resistance, mechanical strength, and dimensional stability under high-speed operation.

Function:
Used as a critical connection element in high-speed rotating systems, the flange transmits torque while maintaining alignment and structural integrity under demanding loads and continuous motion.

Specifications:

Dimensions: Fully customized based on client drawings

Weight Range: From 100 kg to 7 tons

Certifications: Material reports, dimensional inspection, and UT results available upon request

Competitive Advantages:

Manufactured from high-quality steel sourced from renowned mills

Excellent impact strength and fatigue performance for high-speed rotation

Customizable dimensions and heat treatment profiles

Strict quality control throughout the forging process

Proven reliability in heavy-duty industrial applications

Industrial applications:

We apply our years of experience and unique professionalism, taking into account the specific requirements of the market, to design and manufacture forged parts for all industrial sectors. This makes Tiangong Forging a leader in the forging industry and sincerely cooperates with leading companies in various industrial fields.

A. Wind power generation

B. Port heavy machinery

C. Mining

D. Ship building

E. Chemical industry

F. Petroleum industry

G. Metallurgy industry

H. Hydraulic industry

I. Other manufacturing industries of various industrial equipment, transmission gear box, parts and etc.

Process flow:

raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.

Get in Touch for Custom Alloy Steel Forgings

Need high-quality forged parts in 42CrMo or other alloy steels?
We support small batches, fast delivery, and export with full material certification.
Contact us now for a quick quote and reliable technical support.

About CHANGZHOU TIANGONG 

We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet our customers’ requirements. 

Our customers and partner value our products and services for 2 reasons: excellence and reliability.

Key figures 

A. Over 30 years professional free forging manufacturing experience

B. The company covers an area of 71,000 square meters

C. The construction area of the production workshop is 12,000 square meters

D. Total number of employees of 158

E. 28 engineering and technical personnel 

F. 59 skilled workers 

G. Annual production capacity is 38,000 tons

H. Steel throughput can reach 56,000 tons

Efficient and reliable solutions for customers

Industrial sector application

We design and manufacture forged parts for all industrial areas applying our experience and unique professionalism and taking the specific requirements of the markets into account. This has led us to become a forging industry leader in all industrial segments and collaborating with leading companies.

A. Wind power generation

B. Port Heavy Machinery

C. Mining

D. Ship Building

E. Chemical industrial

F. Oil industrial

G. Metallurgical industry 

H. Hydraulic industry 

I. Other high-end industrial equipment, gearbox body, parts and etc.

Customized solutions 

Modular processes allow us to engineer a solution for almost every industrial application requiring free forged parts. Our modularity means flexibility, a wide range of options, faster delivery, and most important of all, competitiveness.

All our products and production process have been designed to assure excellent, reliable and long lasting unique mechanical performances, resulting in reduced operating costs and long life.

With a wide range of products and a significant experience gained in most industrial applications, we can also provide complete engineering recommendation for customers.