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20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge

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Changzhou Tiangong Forging Co., Ltd.

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20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge

Name: 20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge
Brand: Tiangong
Price: 1000 USD

China 20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge wholesale

Brand Name : Tiangong

Certification : ISO9001, ISO14001,ISO45001

Place of Origin : Changzhou, China

MOQ : 1

Price : USD1000-USD2000/piece

Payment Terms : T/T

Supply Ability : 56000 Tons per year

Delivery Time : 30days

Packaging Details : Pallet

Material : alloy steel：20CrMnTi

Tolerance : High precision

Forging Weight : 100kg|100kg-7ton

Machining : Rough Machining

Max Weight : Customized

Loading : Shanghai port

Forging Equipment : 5T / 8T / 12T hydraulic hammers with large-section open die capability.

Category : Heavy Steel Forgings

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20CrMnTi Heavy Steel Forgings For Shipbuilding Intermediate Shaft. Our 20CrMnTi heavy steel forgings for shipbuilding intermediate shafts are engineered to meet the stringent demands of marine applications. The 20CrMnTi alloy steel, renowned for its excellent hardenability, high core strength, and wear - resistant surface after carburizing and quenching, ensures these forgings can endure the harsh marine environment, heavy loads, and continuous rotational stresses during long - distance voyages.

Product Features​

 High - quality Material: Made from 20CrMnTi alloy steel, featuring excellent hardenability, high core strength, and wear - resistant surface after carburizing and quenching.​
 

 Advanced Forging: Utilize advanced forging techniques to achieve a refined grain structure and uniform mechanical properties.​
 

Strict Quality Control: Conduct ultrasonic testing, hardness inspection, etc., to ensure precise dimensions and flawless internal quality.
Product Advantages​

 Excellent Weather Resistance: Withstand harsh marine environments, resisting seawater corrosion and moisture.​
 

 Superior Load Capacity: Endure heavy loads and continuous rotational stresses, ensuring stable power transmission.​
 

Long - term Reliability: Reduce vibration and noise, minimize breakdown risks, extend maintenance intervals, and improve ship operation efficiency.
​Application Areas​

 Ship Propulsion Systems: Serve as key components of intermediate shafts for efficient power transmission from engines to propellers.​
 

 Large Commercial Vessels: Applied in cargo ships, tankers, etc., supporting long - distance navigation power demands.​
 

Special - purpose Ships: Suitable for research vessels, engineering ships, meeting strict requirements for power transmission stability in complex working conditions.
Function (Marine-Specific)These open die steel forgings are specifically engineered for marine propulsion and steering systems, where they are subjected to continuous torsional loads, saltwater exposure, and long-term fatigue cycles. Their grain-refined structure ensures superior resistance to seawater-induced corrosion, impact shocks, and rotational stress, making them ideal for rudder stocks, propeller shafts, and thrust shafts in heavy-duty vessel applications.
 	 		 				Item 				20CrMnTi Heavy Steel Forgings For Shipbuilding Intermediate Shaft 			
 				Materials 				Marine-grade steels: 42CrMo, 18CrNiMo7-6, 20CrNi2Mo, 4340, 35CrMo, 1.7225, 20CrMnTi, 20CrMnMo. 			
 				Forging Equipment 				5T / 8T / 12T hydraulic hammers with large-section open die capability. 			
 				Production Process 				Forging → Heat Treatment → Rough Machining → Dimensional & NDT Inspection 			
 				Forging Ratio 				≥ 3.0 – Ensures refined grain structure, high tensile strength, and structural reliability in marine operating conditions 			
 				Application 				Custom-designed for propeller shafts, rudder stocks, marine drive shafts, thrust flanges, and steering gear shafts used in ships and offshore vessels 			
 				Delivery Condition 				- N+T (Normalized + Tempered): for pre-machined parts  			
 				Inspection & Testing 				- Chemical Composition: Optical Emission Spectrometer - Mechanical Properties: Tensile, Charpy Impact, Hardness Tests - NDT: UT, MT  - Dimensional Checks: Precision micrometers, indicators  			
 				Marine-Certified Services 				 Services include forging, heat treatment, CNC machining, packaging, and global marine logistics. 			
 	 	

20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge

Process flow:

raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.

20CrMnTi Heavy Steel Forgings 7ton Shipbuilding Intermediate Shaft Casting Forge

Frequently Asked Questions (FAQs)

Forging Weight: We produce forged parts from 100 kg to 7000 kg, covering diverse project needs.
Services: Full in - house heat treatment, rough, and finish machining services available for quality- controlled production.
Industries: Serving wind energy, heavy equipment, port machinery, transmission systems, and more.
Lead Time: Around 30 days with stock; 40 - 45 days without, optimizing supply chain for timely delivery.
Location: Factory in Changzhou near Shanghai, shipping via Shanghai Port for domestic and international orders.

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