AISI 8620 Alloy Steel Bar
AISI 8620 alloy steel bar is a nickel-chromium-molybdenum carburizing steel with a low carbon content that allows for excellent case hardening. After carburizing and heat treatment, the bar achieves a hard, wear-resistant surface layer while maintaining a tough and ductile core.
This unique combination of surface hardness and core toughness makes AISI 8620 alloy steel bar a preferred material for heavy-duty mechanical components subjected to high wear and fatigue stress. It also features good machinability, weldability, and heat treatment response, ensuring reliability in demanding applications.
| Alloy 8620 steel bar Specification: |
| Grade | Alloy 8620 |
|---|---|
| Specification | ASTM A29 |
| Round bar size | Diameter: 3mm~800mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Square bar size | 4mm*4mm~100mm*100mm |
| Flat bar size | Thickness: 2mm~100mm |
| Width: 10mm~500mm | |
| Bar size | 2mm~100mm |
| Finish | Bright, Polish, Rough Turned, Grinding, Centreless Ground & Black |
| Surface | Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline |
| Condition | Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished, Annealed round bar |
| Technique | Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod |
| Form | Round, Rod, Precision Ground Bar, Square, Round Rod, Hollow, Hex (A/F), Triangle, Rectangle, Threaded, T-Bar, Half Round Bar, Flat Bar, Rings, Blocks, Billet, Ingot, I/H Bar, Angle, Channel Bar, Profiles, Forging Etc. |
| AISI 8620 alloy steel bar Chemical Composition: |
| Grade | C | Mn | Si | S | P | Ni | Cr | Mo |
| alloy 8620 | 0.18-0.23 | 0.7-0.9 | 0.15-0.35 | 0.04 | 0.035 | 0.4-0.7 | 0.4-0.6 | 0.15-0.25 |
| 8620 alloy bar Mechanical Properties: |
| Properties | Metric | Imperial |
| Tensile strength | 530 MPa | 76900 psi |
| Yield strength | 385 MPa | 55800 psi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Izod Impact | 115 J | 84.8 ft.lb |
| Hardness, Brinell | 149 | 149 |
| Hardness, Knoop (converted from Brinell hardness) | 169 | 169 |
| Hardness, Rockwell B (converted from Brinell hardness) | 80 | 80 |
| Hardness, Vickers (converted from Brinell hardness) | 155 | 155 |
| Machinability (hot rolled and cold drawn, based on 100 machinability for AISI 1212 steel) | 65 | 65 |
| 8620 Steel Heat Treatment |
AISI 8620 alloy steel responds well to heat treatment and can be processed through either quenching or normalizing, depending on the required mechanical properties for its application. During quenching, the steel is heated above its critical temperature and then rapidly cooled in oil or water to achieve high hardness and strength. In contrast, normalizing involves heating the material above the critical point followed by slow cooling in still air, producing a more uniform grain structure and balanced toughness. With subsequent tempering, SAE 8620 can deliver a wide range of tensile strengths, typically from about 545 MPa (79 ksi) up to 795 MPa (115 ksi).
| FAQ |
Q1: What is 8620 alloy steel equivalent to?
A1: SAE 8620 steel is equivalent to EN362 steel, which is its grade under the previous BS 970: 1955 standard
Q2: What is SAE 8620 steel?
A2: The SAE8620 steel is a case-hardening steel consisting of chromium, nickel, and molybdenum as the alloying elements. It has good toughness and strength properties and higher core strength than grades 8615 and 8617.
Q3: What is 8620 used for?
A3: 8620 has a high case toughness and above-average core toughness due to the nickel content. Additionally, it is the most widely used carburizing alloy steel. Typical uses include gears, cranks, shafting, axles, bushings, heavy-duty pins, bolting, springs, hand tools, gears, and many other machinery parts.
| SASA ALLOY’S Quality Assurance |
1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Impact analysis
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Roughness Testing
10. Metallography Experimental Test
| Why Choose Us |
1. You can get the perfect material according to your requirement at the least possible price.
2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
4. We guarantee to give a response within 24hours(usually in the same hour)
5. Provide SGS TUV report.
6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.
7.Provide one-stop service.
| Nickel alloy bar Package: |
1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Sasa alloy’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
