China factories

China factory - Changzhou Tiangong Forging Co., Ltd.

Changzhou Tiangong Forging Co., Ltd.

  • China,Changzhou ,Jiangsu
  • Verified Supplier

Leave a Message

we will call you back quickly!

Submit Requirement
China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings
China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings

  1. China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings
  2. China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings
  3. China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings
  4. China 20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings

20CrMnMo 42CrMo4 Forged Disc Heavy Duty Industrial Alloy Steel CNC Forgings

  1. MOQ: 1
  2. Price: USD500-USD1000/piece
  3. Get Latest Price
Payment Terms T/T
Supply Ability 56000 Tons per year
Delivery Time 30days
Packaging Details Pallet
Forging Weight 100kg|100kg-7ton
Dimensions According To Drawings|Non-Standard
Steel Grade alloy steel:20CrMnMo 42CrMo4
Third Party Inspection TUV or other available inspection
Strength High
Machinery CNC-Machine
Heating Treatment N+T Q+T
Application Industrial Machinery
Brand Name Tian Gong
Model Number TG-108
Certification ISO9001, ISO14001,ISO45001
Place of Origin Changzhou, China

View Detail Information

Contact Now Ask for best deal
Get Latest Price Request a quote
  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability 56000 Tons per year
Delivery Time 30days Packaging Details Pallet
Forging Weight 100kg|100kg-7ton Dimensions According To Drawings|Non-Standard
Steel Grade alloy steel:20CrMnMo 42CrMo4 Third Party Inspection TUV or other available inspection
Strength High Machinery CNC-Machine
Heating Treatment N+T Q+T Application Industrial Machinery
Brand Name Tian Gong Model Number TG-108
Certification ISO9001, ISO14001,ISO45001 Place of Origin Changzhou, China
High Light 20CrMnMo Forged Disc42CrMo4 Forged Disc Heavy DutyCNC Alloy Steel Forgings OEM

20CrMnMo 42CrMo4 Heavy Duty Industrial Alloy Steel Forgings Disc. Our heavy-duty industrial alloy steel forging discs are made from high-grade 20CrMnMo and 42CrMo4 steels. Forging enhances their strength, toughness, and fatigue resistance by refining the grain structure and eliminating defects. These discs are ideal for critical load-bearing and rotational applications, serving as blanks for gears, flanges, and other high-performance components.


Key Features

  • Premium Alloy Steels:
    • 20CrMnMo: High strength, excellent hardenability, and toughness, good for case hardening.
    • 42CrMo4: Outstanding tensile strength, wear, and impact resistance after heat treatment.
  • Superior Properties: Forging delivers high strength, impact resistance, and long fatigue life.
  • Extreme Durability: Built to withstand high pressures, temperatures, and abrasive conditions.
  • Optimized Structure: Refined grain ensures consistent quality and prevents stress points.
  • Versatile Form: Perfect as blanks for large gears, rings, flanges, and rollers.

Application Areas

These discs are vital for high-stress applications in:

  • Heavy Machinery: Gears, bearings, rollers for construction and mining.
  • Power Generation: Turbine parts, couplings, large flanges.
  • Oil & Gas: High-pressure flanges, valve components.
  • Marine & Shipbuilding: Propeller shafts, large gear blanks.
  • Industrial Transmission: Large gear blanks, shafts.
Item Details
Product Name 20CrMnMo 42CrMo4 Heavy Duty Industrial Alloy Steel  Forgings Disc
Material Grades - Alloy steels suitable for boring and rotary stress resistance: e.g., 42CrMo4, 18CrNiMo7-6 - Excellent machinability and impact absorption - Specifically adapted for inner bore formation while retaining high outer wall strength
Forging Equipment - Hydraulic Hammers: 5T, 8T, 12T capacity - Configured for forging of bored shafts, thick-wall rings, and tubular blanks - Enables near-net shape forging with axial bore requirements
Manufacturing Process Hot Forging → Thermal Refinement → Boring / Core Machining → Rough or Precision Machining → Dimensional & Integrity Evaluation
Forging Ratio ≥ 3.0 — Delivers improved fiber orientation along the rotational axis, minimizing internal defects and optimizing rotational balance under dynamic stress
Applications Heavy Duty Industrial 
Heat Treatment Options - Normalized + Tempered based on strength requirements - Intermediate stress relieving available prior to final machining
Testing & Inspection - Chemical Composition: Spectrometer validation for alloy uniformity - Mechanical Properties: Hardness profiling, tensile, and impact strength - Ultrasonic Examination: Multi-angle UT scanning for hollow bore consistency - Dimensional Testing: Bore tolerance, straightness, wall thickness verification
Value-Added Services - Custom boring diameter, length, and wall profile options - Pre-machined surfaces, protective packaging, anti-corrosion measures - Support for export handling, part labeling, and marine-ready logistics

 

The steel forgings production flow:

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.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    1994

  • Total Annual:

    27.5 million -28 million

  • Employee Number:

    135~150

  • Ecer Certification:

    Verified Supplier

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 ... 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 ...

+ Read More

Get in touch with us

  • Reach Us
  • Changzhou Tiangong Forging Co., Ltd.
  • Wangxia Village, Luoxi Town, Xuejia Town, Xin Bei District, Changzhou City, Jiangsu Province, China
  • https://www.freeforgings.com/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement