Looking for high-quality stainless steel round bar? Our extensive inventory of ASTM A276 SS 420 stainless steel round bar offers exceptional hardness, corrosion resistance, and reliability for your industrial and machining applications. Whether you need precision parts, tools, or high-strength components, our SS 420 round bar is the ideal solution for your project.
ASTM A276 SS 420 stainless steel round bar is a high-carbon, martensitic stainless steel bar that conforms to the ASTM A276 standard. After heat treatment, it achieves a hardness of 48-52 HRC (quenched and tempered), a tensile strength of ≥ 620 MPa, a yield strength of ≥ 450 MPa, and an elongation of ≥ 20% (annealed). It offers good machinability, moderate corrosion resistance, and resistance to mild oxidation and weak acid environments. It is widely used in cutting tools, bearings, valve components, and mechanical fasteners. Surface finishes are available: black, annealed, ground, or polished.
ASTM A276 SS 420 Stainless Steel Round Bar in stock
| Grade | Material Type | Diameter Range | Length | Surface Finish | Hardness (HRC) |
|---|---|---|---|---|---|
| ASTM A276 | SS 420 | 10mm – 500mm | 1m – 6m | Mill, Polished, Ground | 50–55 |
| ASTM A276 | SS 420 | 10mm – 250mm | Custom Length | Bright, Turned | 50–55 |
ASTM A276 SS 420 Stainless Steel Round Bar Price per kg
| Diameter Range | Price (USD/kg) | Minimum Order Quantity (MOQ) |
|---|---|---|
| 10mm – 50mm | USD 2.50 – 3.00 | 100 kg |
| 51mm – 150mm | USD 3.00 – 3.50 | 500 kg |
| 151mm – 300mm | USD 3.50 – 4.00 | 1000 kg |
| 301mm – 500mm | USD 4.00 – 4.50 | 2000 kg |
ASTM A276 SS 420 Stainless Steel Round Bar Specification
| Specification | ASTM A276 SS 420 Stainless Steel Round Bar |
|---|---|
| Material | SS 420 (Martensitic Stainless Steel) |
| Standard | ASTM A276 |
| Diameter Range | 5mm – 200mm |
| Length | Customizable (Standard lengths 3m, 6m) |
| Surface Finish | Bright polished, Cold drawn |
| Hardness | 45-55 HRC (Heat treated) |
| Tensile Strength | 550 MPa |
| Yield Strength | 450 MPa |
| Elongation | ≥ 12% |
| Applications | Tools, medical instruments, valve shafts, pump components |
| Packaging | Wooden crates, pallets, or customized packaging |
| Minimum Order Quantity | 1 piece |
Our ASTM A276 SS 420 stainless steel round bars are in high demand, and stock is limited. Order now to secure your round bars at the best price and ensure on-time delivery for your project. We offer immediate dispatch with global shipping available.es@gescosteel.com
Packaging Information
Moisture-Proof Wrapping: Each round bar is securely wrapped in protective film to prevent rust and damage during shipping.
Wooden Pallets: Larger quantities are packaged in wooden pallets for safe, stable transport.






