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China factory - Changzhou Tiangong Forging Co., Ltd.

Changzhou Tiangong Forging Co., Ltd.

  • China,Changzhou ,Jiangsu
  • Verified Supplier

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China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic
China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic

  1. China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic
  2. China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic
  3. China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic
  4. China 18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic

18CrNiMo7-6, 42CrMo, 42CrNiMo Forged Steel Block Alloy Steel for Hydraulic

  1. MOQ: 1
  2. Price: USD300-USD1000/piece
  3. Get Latest Price
Payment Terms T/T
Supply Ability 56000 Tons per year
Delivery Time 30days
Packaging Details Pallet
Size As drawing
Application Industrial Machinery, Automotive Parts, Construction Equipment
Section shape Customizable
Secondary or not Non-secondary,No,we are new product
Material carbon steel,Q195/Q215/Q235/Q345,copper,cast iron,20#
Surface Customers't Requirement,smooth,sand blast,rust-proof oil,oiled
Utstandard Customizable
Color Original
Brand Name Tiangong
Certification ISO9001, ISO14001,ISO45001
Place of Origin Changzhou, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability 56000 Tons per year
Delivery Time 30days Packaging Details Pallet
Size As drawing Application Industrial Machinery, Automotive Parts, Construction Equipment
Section shape Customizable Secondary or not Non-secondary,No,we are new product
Material carbon steel,Q195/Q215/Q235/Q345,copper,cast iron,20# Surface Customers't Requirement,smooth,sand blast,rust-proof oil,oiled
Utstandard Customizable Color Original
Brand Name Tiangong Certification ISO9001, ISO14001,ISO45001
Place of Origin Changzhou, China
High Light Q195 Forged Steel BlockQ215 Forged Steel BlockConstruction carbon steel block

Carbon Steel,Alloy Steel  High-Quality Steel Block for Construction Machines. We provide premium-grade forged steel blocks made from carbon steel and alloy steel, specifically engineered for use in heavy-duty construction machinery components. Each block is precisely forged and heat-treated to ensure high structural integrity, excellent machinability, and superior mechanical performance.

Key Features:

  • Material Options:

    • Carbon Steel: 35#, 45#, C45, etc.

    • Alloy Steel: 42CrMo, 42CrMo4, 20CrNi2Mo,  and other grades upon request.

  • Dimensions: Customizable sizes and weights according to your machining or final part requirements.

  • Heat Treatment: Normalizing, tempering, or annealing to achieve desired hardness and toughness.

  • Surface Condition: Rough forged or rough machined, free of surface cracks and scale, suitable for further machining.

Applications:
These forged steel blocks are widely used as raw materials for key components in construction equipment such as:

  • Excavator arms and base structures

  • Crane supports

  • Hydraulic cylinder blocks

  • Chassis and frame parts

  • Drive housings and gearboxes

Advantages:

  • Excellent strength-to-weight ratio

  • High impact and fatigue resistance

  • Enhanced workability for machining

  • Reliable material traceability and quality control

  • Compliant with international material standards 

Our Competitive Advantages

  • High Dimensional Accuracy:
    All forgings are manufactured with tight dimensional tolerances and precise geometrical control to meet strict engineering requirements.

  • Superior Mechanical Performance:
    Through optimized forging and heat treatment processes, our products exhibit outstanding strength, toughness, and fatigue resistance.

  • Tailor-Made Dimensions:
    We offer customized sizes, weights, and shapes based on your drawings or technical specifications, supporting both small-batch and mass production.

  • State-of-the-Art Manufacturing & Inspection Equipment:
    Equipped with advanced CNC machines, forging presses, and a full range of laboratory testing instruments to ensure consistent quality and process efficiency.

  • Experienced Technical Team:
    Our engineering team brings deep metallurgical knowledge and forging expertise to support product development and technical consultation.

  • Strict Process Control:
    Every stage of production—from raw material selection to final inspection—is carefully monitored under a documented quality system (ISO-certified).

  • Secure and Protective Packaging:
    We ensure all products are properly protected during handling and shipping to prevent damage and ensure safe delivery.

  • Comprehensive Quality Service:
    From pre-sales consultation to after-sales support, we are committed to providing fast response, professional advice, and reliable service.

These are the main inspection equipments:  

 

Our Lab inspection equipment 
1  Spectral component analyzer
2  Impact strength testing machine
3 Impact test cryogenic tank
4 Ultrasonic flaw detector
5 Brinell hardness tester
6 Rockwell hardness tester
7 Digital hydraulic universal testing machine
8 H.Metallurgical microscope
9 Program-controlled box furnace

 

Material 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35#
45#
20CrMnTi
20CrNi2Mo
20CrMnMo
18CrNiMo7-6
42CrMo
20CrNo
35CrMo
Forging Equipment 5 TON, 8 TON, 12 TON Hydralic hammer 
Apply for Construction Machines
Manufacturing Process Forging+heat treatment+rough machining
Forging ratio ≥3 Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation
Delivery terms Rough machining(N+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.

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 ...

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  • 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/

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