| Size Range | 3 mm to 350 mm |
|---|---|
| Length | 6000 mm |
| Standards | Astm, Asme, Din, Nf, Jis, En, Ios |
| Finished | Black, Bright, Cold Drawn, Polish, Polished, Centreless Ground |
4620 Alloy Steel Round Bar Manufacturer in India Supplying SAE/AISI 4620, UNS G46200 Case Hardening Steel Bars
Nippon Alloys Inc. is one of the best 4620 Alloy Steel Round Bar Manufacturers in India, who offer superior quality alloy steel bars that are functionally strong, tough, and wear resistant. 4620 Alloy Steel Round Bars are the most used material for components that need a strong core and good surface hardness after carburizing treatment. They have been especially popular among automobile, heavy equipment and gear manufacturing industries due to their exceptional performance under high stress and fatigue conditions.
Industrial purchasers tend to source materials from dependable B2B Platforms to get good quality products and uninterrupted supply. Alloy Steel Round Bar items are extensively used in producing parts such as gears, shafts, and axles where the life and efficiency are very important. Also, 20MnCr5 Alloy Steel Round Bar is classified as a material of choice for case hardening, as it has very good wear resistance and strength properties in harsh working conditions.
Metals such as alloy steels are available in a wide range of grades and can be selectively purchased depending on their intended use and mechanical properties. For instance, a 27C15 Alloy Steel Round Bar is the material of choice where good machinability and the availability of a moderate strength level are required. As a trustworthy 4620 Alloy Steel Round Bar supplier in India, our vendor network offers different sizes, dimensions, and specifications to fulfill the industrial and engineering requirement diversities.
Material & Grades of 4620 Alloy Steel Round Bar
4620 Alloy Steel Round Bars are engineered using a blend of nickel, chromium, and molybdenum so as to offer not only strength and toughness but also fatigue resistance. Choosing the right grade is thus, very important in order to get the desired performance from a product intended for heavy-load and wear-resistant applications.| Material | Grade / Standard | Specification | Type | Applications |
|---|---|---|---|---|
| Alloy Steel | SAE 4620 | ASTM A29 | Round Bar | Gears & shafts |
| Alloy Steel | 20MnCr5 | EN 10084 | Round Bar | Case hardening applications |
| Alloy Steel | 27C15 | IS 1570 | Round Bar | General engineering |
| Alloy Steel | EN19 | BS 970 | Round Bar | High strength components |
| Alloy Steel | 4140 | ASTM A29 | Round Bar | Heavy-duty machinery |
Key Features & Advantages
- High strength and toughness
- Excellent wear resistance after heat treatment
- Good hardenability and fatigue strength
- Suitable for carburizing applications
- Reliable performance under heavy loads
- Available in various sizes and specifications
- Long service life
Chemical Composition (Example: 4620 Alloy Steel)
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.17 – 0.22 |
| Manganese (Mn) | 0.70 – 0.90 |
| Nickel (Ni) | 1.65 – 2.00 |
| Chromium (Cr) | 0.40 – 0.60 |
| Molybdenum (Mo) | 0.20 – 0.30 |
| Iron (Fe) | Balance |
Mechanical Properties (Example: 4620 Alloy Steel Round Bar)
| Property | Value |
|---|---|
| Tensile Strength | 850 – 1000 MPa |
| Yield Strength | 620 MPa (approx) |
| Elongation | 12 – 18% |
| Hardness | 197 – 237 HB |
Equivalent Grade
| Standard | Grade |
|---|---|
| ASTM | A29 4620 |
| SAE/AISI | 4620 |
| EN | 20NiCrMo2-2 |
| DIN | 1.6523 |
Type of Sub-products

Annealed 4620 Alloy Steel Round Bar Annealed 4620 Alloy Steel Round Bar
Soft for improved machinability and forming, these bars are ideal for applications requiring later case hardening, such as gear blanks and mechanical prototypes.

Carburized 4620 Round Bar Carburized 4620 Round Bar
Pre treated with carburizing for wear resistant surface and strong core, these are used in finished components like gears, rollers, and couplings.
