Polished Surface SAE 8620 Alloy Steel Round Bar with High Hardenability and Good Weldability
Price:
US $850-1,350 / Ton
MOQ:
1 Ton
Delivery Time:
Negotiable
Product Description
AISI 8620 Steel Bar | 16MnCr5 Steel Round Bar
SAE 8620H Alloy Round Bar is a high-quality alloy construction steel offering excellent hardenability, machinability, and weldability. This low carbon nickel chromium molybdenum alloy provides superior carburized properties and formability, making it the most widely used carburizing alloy in various industries.
Key Features
- Excellent machinability performance
- Superior cold strain plasticity
- Outstanding weldability
- High hardenability without fragility after tempering
International Standards
| Chinese | American | German | Japanese |
|---|---|---|---|
| GB 20CrNiMo | AISI SAE8620 | DIN 1.6523 | JIS / |
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.17-0.23 |
| Silicon (Si) | 0.17-0.37 |
| Manganese (Mn) | 0.6-0.95 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Chromium (Cr) | 0.4-0.7 |
| Molybdenum (Mo) | 0.20-0.30 |
| Copper (Cu) | ≤0.30 |
Mechanical Properties
| Property | Value |
|---|---|
| Quenching Temperature | 850°C (oil) |
| Tempering | 200°C (air) |
| Tensile Strength (σb) | ≥980 MPa (100) |
| Yield Strength (σs) | ≥785 MPa (80) |
| Elongation (δ5) | ≥9% |
| Reduction of Area (ψ) | ≥40% |
| Impact Energy (Akv) | ≥47 J |
Applications
Widely used in transmission systems, tractor motors, and small to medium automotive applications. Ideal for higher-class carburization and cyanide carburizing parts including oil drilling equipment, mining claws, and cones. Commonly specified for carburized gears, pinions, shafts, bearings, piston rings, ring gears, and crankshafts.
Available Sizes
Round Bar Diameter: 12-380mm
Available in various conditions including pre-hardened, hot rolled, annealed, quenched and tempered. Surface conditions include black, pre-machined, grinding, and polish.
Available in various conditions including pre-hardened, hot rolled, annealed, quenched and tempered. Surface conditions include black, pre-machined, grinding, and polish.
Why Choose Our AISI 8620 Steel Bars
Quality Assurance
Materials sourced exclusively from government-owned steel mills with ISO 9001 certified quality management systems, ensuring consistent premium quality.
Timely Delivery
Priority treatment for all orders with shortest possible lead times, whether for raw materials or finished products with machining or heat treatment.
Comprehensive Services
- Orders of any size and length with fast shipping
- Unique inventory of specialty steel products
- Value-added services: metal cutting, sizing, machining, heat treatment
- Sawing services for small or large quantities
- Excellent customer service support
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben