Hot Sale High-Strength Alloy Steel Hollow Shafts for Mechanical Accessories

• Customization: Available
• Processing Object: Steel, Alloy Steel, Stainless Steel
• Molding Style: Forging
• Model NO.: TH-Hollow Shaft Forging
• Molding Technics: Customer Drawing or Samples
• Application: Auto Parts
• Material: Quipment Parts, Trailer Parts, Auto Parts etc.
• Heat Treatment: Quenching
• Surface Treatment: Polishing
• Forging Tolerance: +/-0.1mm
• Standard: ASTM
• Certification: ISO 9001:2000, ISO 9001:2008, Ts16949
• MOQ: 1
• Quality Control: Professional Inspection
• Shape: Customer Required
• Machining Process: CNC Milling Center
• Transport Package: Customized
• Specification: alloy
• Trademark: Customized
• Origin: China
• HS Code: 73269090
• Production Capacity: 5000000/Piece

Product Description

Product Description

Shaft Hollow Forgings

Our forged shafts are crafted via advanced forging processes. High - quality alloy or carbon steel undergoes precise hot forging, which refines the internal grain structure. Subsequent heat treatment optimizes mechanical properties like hardness and toughness. CNC machining ensures strict dimensional accuracy, making these shafts reliable cores for heavy - duty machinery, withstanding extreme loads and harsh working conditions.

These shafts boast outstanding load - bearing capacity, wear resistance, and fatigue strength. Their seamless, uniform structure minimizes stress concentration, ensuring stable operation in high - speed rotation and heavy - load transmission scenarios. From steel mill rollers to power generation equipment rotors, they adapt to diverse industrial needs, delivering consistent performance across sectors like metallurgy, energy, and engineering machinery.

Recognizing diverse project demands, we offer full - range customization—material selection, geometric design, surface finishing. Our technical team collaborates to tailor solutions, optimizing forging parameters to match functional and structural requirements. With expertise in aerospace - grade precision and large - scale industrial applications, these forged shafts combine engineering excellence and flexibility, empowering clients to innovate and enhance operational efficiency.

Process	Hot forging , die forging and Free forging
Material	Carbon steel: 1020,1020,1035,1045,1055,Q235,Q345 etc., Alloy steel: 40Cr, 20CrMnTi, 20CrNiMo,35CrMn,42CrMo4 etc., Stainless steel, SS304,SS316 etc.
Standard	ISO, DIN, ASTM, BS ect.
Weight	0.1kg - 120kg
Machining Process	CNC Machining / Lathing / Milling / Turning / Boring / Drilling / Tapping / Broaching /Reaming etc.
Weight Range	0.02-120 KGS
Machining Tolerance	0.02mm-0.1mm
Machined Surface Quality	Ra 0.8-Ra3.2 according to customer requirement
Applicable Heat Treatment	Normalization , quenching and tempering , Case Hardening , Nitriding , Carbon Nitriding
Applicable Finish Surface Treatment	Shot / sand blast , polishing , Surface passivation , Powder coating , E- Coating , Chromate Plating , zinc-plate , Dacromat , Painting
Testing	Supersonic inspection machine , Supersonic flaw detecting machine , physics and chemical analysis
Certification	ISO9000,TS16949,
Packing	Wooden cases or according to customers' needs

Main Products

Company Profile

Hebei Tenghu Machinery Technology Co., Ltd, since its inception in the year 199O, has firmly established itself in the production of of forging innovative ideas and efficient forging technology. 

Run as the one-stop forging service supplier, Tenghu is capable of providing services includes Mold Design & Manufacture, Open/Close Die Forging, Ring Rolling, Heat treatment, Machining, as well as Metallurgical / ND Testing. 

Modern managing principle and contemporary forging technology enable Tenghu to provide exactly what you need at an international recognized level. We are a trusted resource to provide a highly diversified range of forgings includes rolled rings, cylindrical hollows, valve bonnet, forged ball, flange etc. Those custom-made forging products are exported domestically and to more than 18 countries throughout the world, which are the most sought- after in Oil & Gas, chemical, Shipping, Aero, Mining and Automobile industries. The annual production output has exceeded 20,000 tons (45million pounds) . 

Tenghu can offer our customers extremely resilient solutions in complete range of carbon steel, stainless steel, alloy steel, cooper alloy and nickel base alloy, in line with ASTM, DIN, JIS and GB material standard, i.e. A105, A350 LF2, A182 F304/F316, F6a, F51/F53, Monel, Inconel etc. 

For proven excellence, responsive professionalism and cost-effective solutions, we believe firmly that Tenghu is the dependable partner that can bring the value to you in the long term.

Certifications

Company Advantages

Buyer's Positive Review

Our Services

Hebei Tenghu Machinery Technology Co., Ltd, since its inception in the year 1990, has firmly established itself in the production of of forging innovative ideas and efficient forging technology.   

Run as the one-stop forging service supplier, Tenghu is capable of providing services includes Mold Design & Manufacture, Open/Close Die Forging, Ring Rolling, Heat treatment, Machining, as well as Metallurgical /ND Testing

We adopt a strict quality management system. Every forging undergoes a series of rigorous inspections to ensure it meets industry standards and customer requirements. From the initial raw material procurement to the final product delivery, we maintain strict quality control at every step of the production process.

Warranty policy

All the products purchased from our factory are within the warranty period. 
During the warranty period, if any quality problems occur, we will provide free repair services. 
Technical support

We offer lifetime technical support to our customers. Whether during the installation, operation or maintenance of our products, our technical experts are always ready to offer professional advice and guidance. 
Respond promptly

Our after-sales service is not limited by time. Once we receive feedback or problem reports from customers, we will immediately assign technicians to handle them. We will also listen to users' feedback and handle it promptly, constantly improving our products and services.

Packing & Delivery

FAQ

What is the difference between forging and casting?

Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

How to choose high-quality circular forgings?

In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures. and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and through flow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

What are the characteristics of the forging process for circular blank forgings?

The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of rina forainas, free foraing is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.