Custom Forging Blanks 4130, 4140, C45, C60 Alloy Steel Carbon Steel

4130,4140,C45,C60 Non-Standard Sizes Alloy or Carbon Steel Custom Forging Blanks

Custom Open Die Forging Blanks in Non-Standard Sizes | 4130, 4140, C45, C60 Alloy & Carbon Steel

We specialize in open die forged blanks made from 4130, 4140, C45, and C60 carbon and alloy steels, tailored to non-standard sizes and customer specifications. Ideal for gear components, machinery parts, and industrial applications, our forgings offer excellent mechanical properties, dimensional accuracy, and reliable performance.

With over 25 years of forging experience, we support small-batch orders, provide full material certificates (EN10204 3.1/3.2), and have long-term experience exporting to European markets. All forging blanks are produced under strict quality control with in-house inspection and rough machining capabilities.

Rough blanks of large steel forgings are the foundational components used across a wide range of heavy-duty industries, including energy, marine, mining, and industrial equipment. They are forged to near-net shapes, offering an optimal starting point for precision machining and final processing.

Function:
These rough blanks serve as pre-formed structures that enable efficient downstream machining, minimizing material waste and reducing production time for components such as shafts, flanges, cylinders, and rings.

Specifications:

Size Range: Performed in accordance with customer-specific standards

Weight Range: 100 kg to 7 tons

Standards: per customer drawings

Surface: Descaled, rough-machined

Competitive Advantages:

Flexible, custom forging solutions tailored to client specifications

Raw materials sourced from reputable, certified steel mills

Short lead times and reliable delivery

Full traceability and stringent quality control at every step

Ideal for secondary machining and component manufacturing

Frequently Asked Questions

Here are the answers to common questions about our forging services:

What's your forging weight capacity? We produce custom-forged components from 100 kg to 7000 kg, depending on shape and material.

Do you offer heat treatment and machining? Yes, we provide complete in-house services, including quenching & tempering, carburizing, and both rough and finish CNC machining, tailored to your technical requirements.

Which industries do you serve? Our forged parts are used in wind power, heavy industrial equipment, port lifting systems, gear transmission, mining, and oil & gas sectors.

What is your standard lead time? Expect around 30 days for stocked raw materials, and 40–45 days for new production orders, depending on size and complexity.

Where is your factory located? Our forging facility is in Changzhou City, Jiangsu Province, strategically located near Shanghai Port for convenient logistics.

Request a Quote

Looking for a tailored forging solution? Share your technical drawings, material specifications, and performance requirements with us. Our engineering team will evaluate your request and provide a detailed quotation and technical suggestions to support your project's success.

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.