42CrMo4 Forging Steel Shaft for Heavy-Duty Industrial Applications

• Customization: Available
• Application: Agricultural Equipment, Automotive Industry, Construction Industry, Marine Industry
• Certification: CE, ISO9001
• Model NO.: A+ forging steel shaft
• Corrosion Resistance: Medium Corrosion Resistance
• Journal Diameter Dimensional Accuracy: IT6-IT9
• Journal Relative Position Accuracy: 0.01-0.03mm
• Journal Surface Roughness: 0.63-0.16μm
• Shaft Type: Solid Shaft
• Strength: Medium Strength
• Surface Finish: Grinding
• Tolerance: Standard Tolerance
• Pressure Angle: Various
• Size: Heavy Sized
• Cert: ISO 9001
• Tech: Forging + Final Machining
• Transport Package: Wooden or Box Package
• Specification: steel shaft forging
• Trademark: forging steel shaft
• Origin: China
• HS Code: 7326
• Production Capacity: 500ton/Tons Per Month

Product Description

Hot forging sae4140 42CrMo4 Heavy sized steel shaft 

The steel shaft is a cylindrical component made form steel, which is commonly used in various mechanical and structural applications. Steel shafts can be found in a wide range of industries, including automotive, aerospace, manufacturing, and construction. The key points about steel shafts:

1. Materials:
--Carbon steel (A105, 1020, 1045, 1055) Commonly used for its strength and cost-effectiveness.
--Alloy steel (25CrMo4, 30CrMo, 30CrNiMo8, 35CrMo, 40CrNiMo, 42CrMo, 50CrMo) Offers enhanced properties such as higher strength, better wear resistance, and improved toughness.
----Stainless steel (304, 316, 416, 17-4ph, 2205, 2507) Provides excellent corrosion resistance, making it suitable for harsh environments.

2. Applications:
--Power transmission(used in gearboxes, engines, and other machinery to transmit rotational power)
--Support Structures: (Serve as support elements in structures like bridges, buildings)
--Rotary Motion: (Used in pumps, compressors, and turbines to facilitate rotary motion. )
----Linear Motion:(Can be used in linear actuators and other mechanisms that convert rotary motion into linear motion.)

3. Properties:
--Strength: (High tensile and yield strengh, allowing them to withstand significant loads)
--Toughness: (Resistant to impact and fatigue, making them durable.)
--Machinability: (Can be machined, drilled, and turned to precise specifications)

4. Manufacturing Processes:
--Forging: (Involves shaping the steel by applying compressive forces, resulting in high-strength shafts)
--Turning and Machining:(Precision maching processes to achieve the desired dimensions and surface finish)
--Heat Treatment: (Includes quenching, tempering and annealing to improve mechanial properties.)
--Surface Treatment: (Such as hardening, plating, and coating to enhance durability and performance.)

5. Maintenance:
--Lubrication:(Regular lubrication to reduce wear and friction)
--Inspection:(Periodic inspection for signs of wear, cranks, or deformation)
--Replacement:(Timely replacement if the shaftshows signs of excessive wear or damage.)
Certificates and standrds:

Item	Process	Facility	Inspection items	Standard
01	Steel material  inspection		Chemical composition (EF+LF+VD)	Material standard
			surface	Ingot inspection  specification
			Ingot type and weight	Material standard
02	Material store		Division put	warehouse management
1	Heat	Heat furnace	Temperature/Time	Heating process specification Forging production procedure
2 ↓	Forging	Press	Reduction ratio,forging  temperature, deformation,  Surface and dimensions	Forging process card Forging procedure
3 ↓	Heat treatment	heat treatment furnace	heat treatment charts	1st heat-treatment card Forging procedure
4 ↓	Rough  inspection		Dimensions, apperance, Mark	Inspection specification Forging procedure
5 ↓	Rough UT	UT equipment	Single defect, concentrated  Defects bottom wave attenuation	UT standard or  customer's technical requirements
6 ↓	Saw cutting	Saw machine	Dimension	IQC and forging
7 ↓	rough turning	turning-lathe	Dimension,appearance	Rough machining drawing
8 ↓	UT	UT equipment	Single defect, concentrated  defects bottom wave attenuation	UT standard or  customer's technical requirements
9 ↓	Q+T  heat treatment	heat treatment furnace	heat treatment charts	Heating process  specification
10 ↓	Sampling or machining	machining tool	rough machining drawing sampling drawing	sample machining drawing
11 ↓	mechanical  property test	tensile testing machine/ impact testing machine	ambient temperature,humidity, Test temp.Sample dimension, test method	Standard technical specification
12 ↓	finish machining	machining tool	Dimension,appearance	finish machining drawing
13 ↓	UT	UT equipment	Single defect, concentrated  Defects bottom wave attenuation	UT standard or  customer's technical  requirements
14 ↓	MT	MT equipment	Magnetic particle  indication	Test standard or  Technical requirements
15 ↓	Mark	Steel seal	marking content	Product standard Technical requirements Forging process
16 ↓	Final  inspection		Appearance, dimension, mark acceptance inspection	Product inspection specification Product standard P.O.
17	Protection/ package	Blasting Blasting equipment	appearance coating thickness	Product standard Technical requirements