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.
