Custom 42CrMo4 Open Die Forgings 20CrMo Industrial Steel Forgings Various Shapes

Custom 42CrMo4, 18CrNiMo7-6, and 20CrMo Industrial Open Die Steel Forgings in Various Shapes and Materials for Heavy Equipment Manufacturers

Reliable Open Die Forging / Free Forging Solutions in 35#, 45#, and 42CrMo for Heavy-Duty Industrial Applications

We provide high-strength open die forging (also known as free forging) products using top-grade 35#, 45#, and 42CrMo steels, tailored for a wide range of industrial applications. Our forgings include custom shafts, rings, blocks, and other components designed for use in wind power, construction machinery, mining equipment, and heavy industry. Backed by over 25 years of forging experience and ISO-certified quality management, we ensure precise dimensions, superior mechanical properties, and consistent performance. Partner with us for durable and cost-effective forged parts engineered to meet your exact needs.

Our custom industrial open die steel forgings, crafted from premium 42CrMo4, 18CrNiMo7-6, and 20CrMo materials, are the ideal solution for heavy equipment manufacturers seeking unparalleled quality and performance.

Features:

Forging Type: Free forging (open-die)

Material Options: Carbon steel, alloy steel — customizable as per customer requirements

Heat Treatment: Typically annealed or tempered to enhance internal structure and machinability

Testing: Ultrasonic testing and other inspections conducted according to customer standards

Condition: Delivered as-forged or rough-machined

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.

These are the main inspection equipments:

These are the main inspection equipments:

We operate a fully equipped in-house laboratory dedicated to mechanical, chemical, and metallurgical testing. This allows us to perform real-time quality checks throughout the entire production process—from raw material selection to final inspection.

Advantages:

High structural integrity and toughness

Excellent fatigue and impact resistance

Flexible material selection and process customization

Reliable performance in harsh industrial environments

Produced under strict quality control with full traceability

Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.

2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.

3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.

4. What is your production lead time?

With stock: Around 30 days

Without stock: 40–45 days

5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.

Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.

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.