Alloy Steel Forgings Crane Wheel 42CrMo Open Die Forging For Port Machinery

Alloy steel forgings 42CrMo open die forging for Port machinery and lifting equipment. Our 42CrMo alloy steel open die forgings are engineered for high-performance applications in port machinery and lifting equipment. Produced through precision open die forging, these components offer excellent strength, toughness, and fatigue resistance, ensuring reliable operation under heavy loads and harsh working conditions.

The 42CrMo material, known for its superior hardenability and mechanical properties, is widely used in critical structural parts such as forged gear shafts, crane wheels, lifting hooks, and load-bearing components. Each forging undergoes strict heat treatment and non-destructive testing to guarantee internal soundness and dimensional accuracy.

Key Features:

• Material: 42CrMo / 42CrMo4 alloy steel

• Forging Method: Open die forging

• Heat Treatment: Normalizing + Tempering

• Hardness: as per specific requirements

• Weight Range: 100 kg – 7 tons

• Shapes Available: Round, square, stepped shafts, blocks, custom shapes

Advantages:

• High strength-to-weight ratio

• Excellent fatigue and impact resistance

• Custom dimensions and machining available

• Compliant with ISO, EN, and customer-specific standards

• Full material traceability and inspection records

We design and manufacture forged parts for all industrial areas by applying our experience and unique professionalism, taking into account the specific technical and performance requirements of each market. This has made us a trusted forging partner across a wide range of industries, collaborating with world-leading companies.

A. Wind Power Generation
High-strength forged shafts and gears for wind turbines, ensuring fatigue resistance and long service life in harsh environments.

B. Port Heavy Machinery
Heavy-duty forgings for cranes, wheels, and lifting components, built to handle extreme loads and continuous operation.

C. Mining
Durable forged parts for drilling and crushing equipment, offering impact resistance and extended wear life in tough conditions.

D. Ship Building
Precision marine forgings such as propeller shafts and rudder parts, certified for strength, corrosion resistance, and reliability.

E. Chemical Industry
Forged flanges and vessel parts engineered for high-pressure, high-temperature, and corrosive chemical environments.

F. Oil Industry
Robust forgings for drilling and wellhead systems, designed to withstand high stress, pressure, and harsh field conditions.

Forging process flow quality control:

Raw material steel ingot into warehouse(test the chemical composition) → Cutting→ Heating(Furnace temperature test) → Heat treatment after forging(Furnace temperature test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal dimension, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.

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.