Product Description
SAE4340 is an alloy steel also known as chromium molybdenum steel.
It is usually used to manufacture mechanical parts with high
strength, high hardness and high corrosion resistance
This material has excellent hardenability and good thermal
stability and can withstand high temperatures and pressures.
During the manufacturing process, 4340 alloy steel usually needs to
go through multiple processes, including smelting, forging, heat
treatment and mechanical processing. Its manufacturing process is
complex, but the parts made have high hardness and corrosion
resistance and can meet many demanding application scenarios.
Features:
Strength and Toughness: 4340 Bar offers excellent strength and
toughness
Wear resistance: 4340 bar has good wear resistance
High temperature performance: 4340 bar maintains good strength and
hardness at high temperatures, making it suitable for applications
in high temperature environments
Ease of processing: 4340 bar has good processing performance and
can be used for common processing techniques such as heat
treatment, machining and welding.
Technical Parameters:
4340 alloy steel round bar is widely used in the aerospace industry
because of its ultra-high strength. It is known for its toughness
after heat treatment while maintaining good fatigue strength. This
is an excellent choice for highly stressed parts. It can be
processed by all conventional methods. The material is available in
both vacuum melted (VM) and air melted (AM) forms.
4340 rod/bar has excellent strength, toughness and wear resistance,
it is widely used in various industries and applications.
Chemical Composition
| Carbon | 0.38-0.43 |
| Manganese | 0.60-0.80 |
| Phosphorus (max) | 0.035 |
| Sulfur (max) | 0.04 |
| Silicon | 0.15-0.35 |
| Nickel | 1.65-2.00 |
| Chromium | 0.70-0.90 |
| Molybdenum | 0.20-0.30 |
| Quenching | Tempering |
| Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
| 820-840 | Oil | ≥53 | 450-650 | Air | 25-40 |
| Tensile strength (psi) | 105,000 - 115,000 |
| Yield strength (psi) | 75,000 - 85,000 |
| Elongation in 2" (%) | 20 - 30 |
| Reduction of area (%) | 35 - 45 |
| Brinell Hardness (BHN) | 210 - 240 |
company advantage:
The alloy steel bars of EDEST STEEL have the following main
characteristics:
High strength: It has higher strength than ordinary steel.
Toughness: Suitable for applications that require impact resistance
and wear resistance.
Corrosion resistance: suitable for use in harsh environments.
Wide size range: The diameter range of EDEST STEEL's alloy steel
bars ranges from 20mm to 1200mm, making them suitable for various
applications.
Alloy steel bars can be heat treated through processes such as
annealing, normalizing, tempering, and quenching to achieve the
required mechanical properties, with multiple heat treatment
processes available for selection
Application areas:
- Aircraft Landing Gear
- Power Transmission Gears
- Structural Use Applications
- High strength shafts
- Punches & dies
- Drill bushings
- Retaining rings
- Gears
Customization:
Bar customization
We are a professional alloy steel bar manufacturer and can
customize bar products that meet specific needs.
Requirement confirmation: Specification requirements, including
diameter, length, material, etc. Detailed drawings or instructions
can be provided to complete customization
Material selection: according to requirements and application
environment
Processing technology: customized cutting, forging, heat treatment,
etc. according to customer needs
Production and manufacturing: According to customer requirements,
the manufacturing, processing, molding, heat treatment and surface
treatment of bars are carried out.
Quality Control: Ensure bar products comply with requirements and
international standards. We will strictly inspect the bar, measure
its dimensions, and test its mechanical properties, etc.
Delivery and service: After customization is completed, final
inspection and packaging will be performed, and the product will be
delivered to you according to the agreed delivery method.
EDEST provides after-sales service to ensure customer satisfaction
and long-term product use.
Stock Size
| Plate | Thickness | 20-120mm |
| Width | 2200mm |
| Length | 4000-10000mm |
| round bar | Diameter | 16-450mm |
| Length | 4000-10000mm |
Related Products
Why Choose Us
- Professional and reliable steel products supplier, CE, ISO and SGS
certified source manufacturer from China
- Our store has a large scale of metal products, with an inventory of
more than 50,000+ tons, and can be shipped quickly.
- We have officially obtained CE, ISO, and SGS certification.
- We are a comprehensive steel enterprise with “one-stop” service
from production, processing and export of products.
Machining Center
We have our own workshop, we can supply one stop service:
1. Blasting machine cleaning the steel surface
2. Fiber machine cutting the plate as the CAD drawings
3. Bending machine
4. Drill machine drill the holes.
5. Laser & Punch
6. Laser Cutting
7. Folding
8. Insert Installation
9. Fabrication
10. Assembly
Company Introduction
EDEST STEEL CO., LTD Is A Large Comprehensive Steel Enterprise In
China Specializing In The Export Of Stainless Steel And Carbon
Steel. With Over 26 Years Of Experience In Production, Processing,
And Sales, We Maintain Ample Stock Of Stainless Steel, Carbon
Steel, And Other Steel Materials. Currently, We Have Established
Six Major Production Bases Nationwide, To Provide Diversified
Processing And Production Of Stainless Steel, Carbon Steel, And
Other Metal Materials To Meet Your Various Procurement Needs. Our
High-Quality Products Are Well-Suited For Industries Such As
Energy, Manufacturing, Machinery, And Healthcare.
We Are A Leading One-Stop High-End Manufacturing Service Enterprise
In China, Equipped With Capabilities In Steel Material Processing,
Component Fabrication, Finished Product Manufacturing, And
Professional Technical Services. We Aim To Provide Comprehensive
Support To Global End-User Manufacturing Enterprises.
Our Services & Strength
We Passed Certificate ISO9001,ISO14000,OHSAS18001.As A Member Of
China Iron And Steel Association,We Established Long Term Friendly
Cooperation With Famous Domestic Mill Plants,Such As Bao Steel,Wu
Steel,An Steel,Tai Steel Etc. As Well As Active Pursues
Partnerships Foreign Company ,In Order To Meet Customer
Requirement. With Concept Of 'Keep Improving,Win-Win
Cooperation',And Executed By Reliable Quality And After Sales
Service System,Edest Steel Gained Good Reputation From Customers At
Home And Abroad.We Sincerely Welcome You To Come Our Company To
Negotiate Business!
Our Certificate
Since The Establishment Of The Company, It Has Passed
ISO9001/ISO14001/OHSAS18001 And Other System Certifications. MTC
Will Be Shipped With The Goods When Shipped. At The Same Time,
Support Third-Party Inspection.
Contact Us
EDEST STEEL CO.,LTD.
Address : Qianqiao Industrial Park, Huishan District, Wuxi City,
Jiangsu Province
Contact Person : Mr. Jeff
Mobile/WhatsApp : +8618921116238
Email : Jeff@Edesteel.Com
Our commitment
Our Price May Not Be The Lowest, But We Adhere To The "Quality
First, Service First" Our Price Is Reasonable, We Will Be Your Most
Satisfied Supplier In China
If You Have Any Questions, Please Feel Free To Contact Us! We Are
Committed To Providing You With The Best Products At The Most
Reasonable Prices, Always Providing Our Best Service.
