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AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft
AISI 4340 Forging Shaft

AISI 4340 Forging Shaft

Product description: AISI 4340 Forging shaft, aisi 4140 forged shaft supplier, inconel 625 forging shaft

Length: 100-1000mm

Hardness: as required

Weight: 0.1~20ton

Materail: 45#, 42CrMo, other alloy steel,carbon steel

Forming way: Forging/casting/steel rod

Processing: Forging/casting- rough machining,heat treatment,finish machining,inspect

Lengthmax.10000 mm
Diametermax.1200 mm
Weightmax.15 tons



The AISI 4340 Forging Shaft is a high-strength and versatile component made from AISI 4340 alloy steel. This shaft is produced through a forging process, ensuring superior mechanical properties, excellent durability, and reliable performance. It is widely used in various industries that require robust shafts capable of withstanding high loads and demanding conditions.

The AISI 4340 Forging Shaft is a precision-engineered component manufactured from AISI 4340 alloy steel. This alloy is composed of nickel, chromium, and molybdenum, which contribute to its exceptional strength, toughness, and wear resistance. The forging process ensures a solid and defect-free structure, making it suitable for heavy-duty applications.



High Strength: AISI 4340 alloy steel provides excellent strength and toughness, enabling the forging shaft to withstand high loads, shocks, and impacts without deformation or failure.

Wear Resistance: The alloy composition enhances the shaft's resistance to wear and abrasion, making it suitable for appl

ications where friction and surface contact are prevalent. Good Ductility: The forging process enhances the ductility of the shaft, allowing it to absorb energy and resist cracking under high-stress conditions.

Machinability: Despite its high strength, AISI 4340 alloy steel offers good machinability, allowing for precise customization and modification of the shaft as per application requirements.

Hunan Jetvision Industrial Co.,LTD is a professional production of forging flanges, forgings rings, forged shaft, forged bar, customized forgings, etc. , products are widely used in mechanical equipment, new energy equipment, petrochemical pressure vessel equipment, aerospace and military special equipment and other fields.

Our company has strong technical strength and fully implements lean production management, It is equipped with a full set of production lines integrating forging processing, heat treatment, machining and performance testing.The material covers alloy steel, stainless steel, aluminum alloy, titanium alloy and superalloy and other difficult deformation materials.


Forged Shaft Material:

Alloy Steel:

Alloy Steel: 40Cr、15CrMo、20CrMo、25CrMo、30CrMo、35CrMo、35CrMoV、42CrMo、20Cr2Ni4、20CrNiMo、40CrNiMo、30Cr2Ni2Mo、35CrMoV、12Cr1MoV、38CrMoAl、18Cr2Nio4W、40CrNi2Mo、30CrMnSi、25Cr2MoV、17Cr2Ni2Mo、20MnMo、20MnMoNb、34CrNi3Mo、20CrMnTi、40CrMnMo、30Cr2Ni2Mo、34CrMo1、20CrMnMo、24CrMoV、30Cr2MoV、34CrNi1Mo、17Cr2Ni2Mo、34CrNi3MoV、20CrMnTi、A182F1、F5、F9、F11、F22、12Cr2Mo1、10Cr9Mo1VNbN(F91)、10Cr9MoW2VNbBN(F92)、12CrMoV、4140、4340、4330、4130、4150、9CR2MO、17NiCrMo6-4、18CrNiMo7-6、30CrNiMo8、34CRNIMO、34CrNiMo6、36CrNiMo4、34CrNi3Mo、40CRNIMO、40CrNiMoA、50CrMo4、Q345D、300M、17-4PH、PH13-8Mo、15-5PH、AerMet100.....

Stainless Steel:

Stainless steel 304 / 304L / 310S / 316L / 316Ti / 316LN / 317L / 904L / 2205 / 2507 / 32760 / 253MA / 254SMo / XM-19 / S31803 / S32750 / S32205 / F50 / F60 / F55 / F60 / F61 / F65 etc

PH stainless steel 15-5PH / 17-4PH / 17-7PH

Nickel alloy:

Monel 400 / Monel K-500 / Monel 401 / monel r405

Inconel 600 / Inconel 601 / Inconel 625 / Inconel 617 / Inconel 690 / Inconel 718 / Inconel X-750

Incoloy A-286 / Incoloy 800 / Incoloy 800H / Incoloy 800HT / Incoloy 825 / Incoloy 901 / Incoloy 925 / Incoloy 926

Hastelloy B / Hastelloy B-2 / Hastelloy B-3 / Hastelloy C / Hastelloy C-276 / Hastelloy C-22 / Hastelloy C-4 / Hastelloy C-2000 / Hastelloy G-35 / Hastelloy X / Hastelloy N



Strength and Durability: The AISI 4340 Forging Shaft provides exceptional strength and durability, making it suitable for heavy-duty applications that require reliable performance under high loads and extreme conditions.

Versatile Applications: This forging shaft is widely used in industries such as automotive, aerospace, oil and gas, and power generation, where high-stress applications demand robust and reliable shafts.

Cost-Effective Solution: The combination of strength, durability, and excellent mechanical properties make AISI 4340 Forging Shaft a cost-effective solution due to its longer service life and reduced maintenance requirements.

Application Scenario:

The AISI 4340 Forging Shaft finds applications in various industries, including:

Automotive: Driveshafts, transmission shafts, and axle shafts.

Aerospace: Landing gear components, aircraft engine parts, and rotor shafts.

Oil and Gas: Drill collars, mud motor shafts, and wellhead equipment.

Power Generation: Turbine shafts, generator rotor shafts, and steam turbine components.

Quality Management

World-class equipment

Equipped with 200+ world-class facilities.

Provide turning, milling, drilling, boring, cutting, bending, rolling and welding services etc.

Purchase of raw materials

Only choose the suppliers with certifications.

Original material certificate can be provided

All materials can be subjected to the third-party test.

Experienced technician

Most of our technicians have more than 10-20 years’ experience in the industry. They are capable to optimize the design and technical schematics. To offer the most time and cost efficient solutions.


After-sales Service:

Our company is dedicated to providing excellent after-sales service to ensure customer satisfaction. We offer:

Technical Support: Our team of experts is available to assist with any technical inquiries or application-related questions.

Quality Assurance: We adhere to strict quality control measures throughout the manufacturing process to ensure the reliability and performance of our AISI 4340 Forging Shafts.

Warranty: We provide a warranty period to cover any manufacturing defects or material inconsistencies.


Q1. What are the available sizes and dimensions of the AISI 4340 Forging Shaft?

A1. We offer a range of sizes and dimensions to suit different application requirements. Please contact our sales team for specific details.

Q2. Can the AISI 4340 Forging Shaft be customized?

A2. Yes, we can provide customized shafts based on your specific design and requirements. Our engineering team will work closely with you to deliver tailored solutions.

Q3. Are material certifications and test reports available?

A3. Yes, we provide material certifications and test reports, including chemical composition, mechanical properties, and non-destructive testing, upon request.

Q4. What is the lead time for ordering AISI 4340 Forging Shafts?

A4. The lead time depends on the quantity and complexity of the order. Our sales team will provide you with the estimated delivery time once the order details are confirmed.

Q5. How can I request a quotation or place an order?

A5. You can contact our sales team directly through our website, email, or phone. They will assist you with the quotation process and guide you through placing an order.

More Information for AISI 4340 Forging Shaft

Material Composition: The AISI 4340 Forging Shaft is made from AISI 4340 alloy steel, which is a low-alloy, high-strength steel known for its exceptional mechanical properties. The chemical composition typically includes elements such as nickel, chromium, molybdenum, and carbon, contributing to its excellent strength and toughness.

Heat Treatment: AISI 4340 alloy steel is commonly subjected to heat treatment processes such as quenching and tempering to further enhance its mechanical properties. This treatment results in increased hardness, strength, and wear resistance, making the forging shaft suitable for demanding applications.

Surface Finish Options: The AISI 4340 Forging Shaft can be supplied with various surface finishes to meet specific requirements. Common options include polished, ground, or coated surfaces, providing improved surface quality, corrosion resistance, and aesthetics.

Testing and Inspection: To ensure the highest quality, the AISI 4340 Forging Shafts undergo rigorous testing and inspection procedures. These can include non-destructive testing (such as ultrasonic or magnetic particle inspection), dimensional checks, mechanical property testing (such as hardness and tensile strength), and chemical analysis.

Certifications and Standards: The AISI 4340 Forging Shaft can be manufactured to meet industry standards and specifications, such as ASTM, ASME, or customer-specific requirements. Certifications and compliance documentation, including material certificates and test reports, can be provided upon request.

Precision and Tolerance: The AISI 4340 Forging Shaft is manufactured with high precision and tight tolerances to ensure proper fit and function in various applications. The dimensions, concentricity, and surface finish are carefully controlled during the forging and machining processes.

Customization Options: The AISI 4340 Forging Shaft can be customized to meet specific application needs. This includes tailor-made dimensions, surface treatments, keyways, splines, and other features based on customer requirements.

Supply and Availability: Jetvision is a professional supplier and manufacturer who offer top quality and best price AISI 4340 Forging Shaft, forging ring, forging disc, forging hollow cylinder, forging block, etc.

What standard is AISI 4340 equivalent to?

AISI 4340 Steel | W-Nr. 1.6511 | DIN 36CrNiMo4

4340 Alloy structural steel properties is very simliar with GB 40CrNiMo steel, JIS SNCM439 and DIN 1.6511 36CrNiMo4 Alloy structural steel. At most work environment,4340 is equivalent with 40CrNiMo, 1.6511 36CrNiMo4, SNCM439 steel.

What is AISI 4340 steel grade?

AISI 4340 is a low alloy steel containing nominally 0.4% C, 0.8% Cr, 0.25% Mo and 1.8% Ni. Higher strength levels up to 150 KSI 0.2% PS may be achieved by suitable heat treatment. Often used in preference to AISI 4140 at the higher strength levels because of its better hardenability and improved CVN impact toughness.

What is AISI 4340 used for?

AISI 4340 has a favorable response to heat treatment (usually oil quenching followed by tempering) and exhibits a good combination of ductility and strength when treated thusly. Uses include piston pins, bearings, ordnance, gears, dies, and pressure vessels.

What is the specification of AISI 4340 steel?

AISI4340 can commonly have yield strengths of 740-1860 MPa, tensile strengths of 860-1980 MPa, elongations of 11-23%, and plane strain fracture toughness of 53-110 MPa√m. Applications of 4340 steel include heavy shafting, fasteners, aircraft, automotive, and hydraulic systems.

What is forging of 4340 steel?

Forging. AISI 4340 alloy steel is forged at 427 to 1233°C (1800 to 2250°F).

Where is 4340 steel used?

4340 steel alloy is used primarily for structural applications such as aircraft landing gears. 4340 alloy steel is also used in the manufacturing of structural parts like gears, sprockets, chucks, molds, and more.

What is the difference between 4140 and 4340 axle shafts?

However, 4340 has more carbon, while 4140 has more chromium. One of the most significant differences between the two metals is the inclusion of nickel in 4340 steel, which accounts for the metal's greater strength and fracture toughness.

What is forged shaft?

In simple terms, Shaft forging means giving the desired shape to the forged material through reliable machines. Generally, this process is done on forged material to enhance the quality in terms of strength and to make the material last longer. Why Shaft Forging or Forged shaft is essential? To Increase the Durability.

Other Forgings are Available

SIZE/ WEIGHTCarbon, Alloy & ToolStainlessAluminumTitanium
FLAT BAR/BLOCKSMAX. WIDTH120”120”27”60”65”
MAX. WEIGHT60,000#60,000#15,000#10,000#15,000#
MAX. LENGTH108”108”65”96”65”
DISCS/HUBSMAX. DIA.96”96”50”80”65”
MAX. WEIGHT75,000#75,000#20,000#15,000#10,000#
MAX. LENGTH65”65”40”65”65”
ROUNDS/SHAFTS (with steps or flanges)MAX. LENGTH420”220”144”220”144”
MAX. WEIGHT75,000#75,000#20,000#10,000#10,000#


Other Material are Avaible

Stainless Steel: ASTM A182、F304/304L、 F316/316L、 F316H、F310、 F321、JB4728-2000 、OCR18Ni10Ti、JB4728-2000、OCR17NI12Mo2、2205、2507、2103、904L、254SMD、304LN、316LN、1CR13、2cr13、3cr13、4cr13、321、302、W1813N、W2014N、W2018N、W2020N、P550、Cr18Mn18N、06Cr19Ni10(S30408)、022Cr19Ni10(S30403)、06Cr17Ni12Mo2(S31608)、022Cr17Ni12Mo2(S31603)、06Cr25Ni20(S31008)、06Cr18Ni11Ti(S32168)、022Cr19Ni13Mo(S31703)、0Cr17Ni4Cu4Nb、06Cr19Ni10N、14Cr17Ni2、13Cr13Mo、06Cr13, etc stainless steel forgings.

Alloy Steel: 40Cr、15CrMo、20CrMo、25CrMo、30CrMo、35CrMo、35CrMoV、42CrMo、20Cr2Ni4、20CrNiMo、40CrNiMo、30Cr2Ni2Mo、35CrMoV、12Cr1MoV、38CrMoAl、18Cr2Nio4W、40CrNi2Mo、30CrMnSi、25Cr2MoV、17Cr2Ni2Mo、20MnMo、20MnMoNb、34CrNi3Mo、20CrMnTi、40CrMnMo、30Cr2Ni2Mo、34CrMo1、20CrMnMo、24CrMoV、30Cr2MoV、34CrNi1Mo、17Cr2Ni2Mo、34CrNi3MoV、20CrMnTi、A182F1、F5、F9、F11、F22、12Cr2Mo1、10Cr9Mo1VNbN(F91)、10Cr9MoW2VNbBN(F92)、12CrMoV、4140、4340、4330、4130、4150、9CR2MO、17NiCrMo6-4、18CrNiMo7-6、30CrNiMo8、34CRNIMO、34CrNiMo6、36CrNiMo4、34CrNi3Mo、40CRNIMO、40CrNiMoA、50CrMo4、Q345D、300M、17-4PH、PH13-8Mo、15-5PH、AerMet100, etc alloy steel forgings.