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.
| Material |
4140,4130,18CrNiMo7-6,4340,4330,1.7225,35#
45#
20CrMnTi
20CrNi2Mo
20CrMnMo
18CrNiMo7-6
42CrMo
20CrNo
35CrMo |
| |
5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for |
Transmission main shaft is used for driving force |
| |
Forging+heat treatment+rough machining+finish machining |
| Forging ratio |
≥3 |
| Applicable standard |
ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
| Executive standard |
JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
| Delivery terms |
Rough machining(N+T); finish machining(Q+T) |
| Test equipment |
Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service |
Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
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
| Material |
4140,4130,18CrNiMo7-6,4340,4330,1.7225,35#
45#
20CrMnTi
20CrNi2Mo
20CrMnMo
18CrNiMo7-6
42CrMo
20CrNo
35CrMo |
| Equipment |
5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for |
Transmission main shaft is used for driving force |
| |
Forging+heat treatment+rough machining+finish machining |
| Forging ratio |
≥3 |
| Applicable standard |
ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
| Executive standard |
JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
| Delivery terms |
Rough machining(N+T); finish machining(Q+T) |
| Test equipment |
Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service |
Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
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.
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