Products Description
AISI 4130 round bar is a type of low-alloy chromium-molybdenum steel bar. Due to its excellent strength, toughness and good processing properties, it is widely used in engineering fields that require high strength and wear resistance. Its typical feature is that it combines high strength with excellent weldability. After appropriate heat treatment (such as quenching and tempering), it can provide excellent yield strength and fatigue resistance.
This alloy steel has a relatively low carbon content, which enables it to maintain good ductility and impact toughness while ensuring high strength. It is highly suitable for manufacturing key components such as high-pressure vessels, aviation parts, car racing parts, oil and gas drilling tools, and mechanical gears.
|
Name |
aisi 4130 round bar |
|
Steel Grade |
4130 |
|
Diameter |
6-500mm |
|
Length |
6000mm or as required |
|
Process |
hot rolled/forged/cold drawn |
|
Surface |
Bright |
|
Usage |
Construction |
|
Main Market |
India,Russia,Canada,Uruguay,UAE,Egypt,Qatar,etc. |
Chemical composition:
| Grade | C | Si | Mn | Cr | Mo | P | S |
| 4130 | 0.28 – 0.33 | 0.15 – 0.35 | 0.40 – 0.60 | 0.80 – 1.10 | 0.15 – 0.25 | ≤ 0.035 | ≤ 0.040 |
Mechanical properties (under heat treatment conditions)
| Grade | Tensile strength | Yield strength | EL | Hardness |
| 4130 | ≥ 560 MPa | ≥ 460 MPa | ≥ 20% | ≤ 217 HBW (in annealed state) |
Strengths Introduction
Jiangsu Cunrui Metal Products Co., Ltd. Over the years, we have been deeply involved in the steel industry, specializing in the research, production and export of stainless steel and alloy steel. The company is equipped with advanced rolling, forging, heat treatment and testing equipment, with an annual production capacity of over 50,000 tons.
Thanks to our stable quality and complete supply chain, we have become the preferred choice for many international customers for long-term cooperation.
Company Advantages:
- Extensive experience: Over ten years of experience in steel manufacturing and export.
- Comprehensive package: Integrates production, processing, testing and logistics.
- Global Services: Professional Foreign Trade Team, Quick Response to Inquiries
- All certifications are complete: ISO 9001, SGS, BV, etc. international certifications
Quality control and certification
- Raw material inspection: Spectral analysis is conducted on incoming steel ingots to ensure precise element content.
- Process control: Real-time monitoring of heat treatment temperature and cooling rate
- Final inspection stage: Ultrasonic testing, hardness testing, and tensile impact testing are all fully covered.
- Third-party inspection: SGS, BV, TUV and other reports can be provided
Packaging and Logistics
- Anti-rust oil coating + plastic film packaging
- Wrapped with steel bands for reinforcement, and packaged with waterproof canvas on the outside or in a wooden box.
- Offer various modes of transportation including sea transportation, air transportation and railway transportation.
- Support flexible international trade terms such as FOB, CIF, DDP, etc.
- No matter where you are, we can ensure that AISI 4130 round bar is delivered safely and on time.
FAQ
Q1: What heat treatment states are supported by your AISI 4130 round bar?
A: Various states such as annealing, normalizing, quenching + tempering can be provided to meet different application requirements.
Q2: Can special sizes be customized?
A: Yes, we can process different diameters and lengths according to the customer's drawings or requirements, and also offer cutting services.
Q3: What are the differences between AISI 4130 and AISI 4140?
A: AISI 4130 has a lower carbon content and better welding performance; AISI 4140 has a higher carbon content and greater strength, making it suitable for higher load environments.
Q4: Can you provide a third-party test report?
A: Yes, we support tests conducted by international certification bodies such as SGS, TUV, and BV.
Q5: How long is the delivery cycle usually?
A: Standard specifications are available in stock and can be shipped within 3 to 7 days; custom sizes usually take 15 to 25 days to be delivered.
Q6: What is the minimum order quantity (MOQ)?
A: The MOQ for the standard specifications is 1 ton, and sample orders are also supported.
