High-Quality Round Metal Bars (2mm, 3mm, 6mm) from China Suppliers - 201, 304, 316 Stainless Steel Factory
Stainless Steel Rod
Stainless steel bars are long, round-sectioned stainless steel profiles, with mainstream grades including 201, 304, and 316L—316L stands out for its exceptional corrosion resistance in harsh environments. Their key advantages lie in strong corrosion resistance, high tensile strength, and good toughness, enduring moisture, pressure, and temperature variations. They're easy to machine, weld, or polish, with surface finishes like pickling, 2B, and mirror polishing blending functionality and aesthetics, boasting a longer service life than carbon steel bars.
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Wide Industry Applications
Machinery manufacturing uses them for shafts, gears, and fasteners; construction employs them as embedded parts and structural supports; automotive sectors adopt them for components like suspension parts; medical fields utilize them for surgical instrument components; hardware production transforms them into handles and hinges.
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Installation Guidelines
Installation requires pre-treatment—degreasing and derusting the surface. Connection methods depend on scenarios: welding for permanent joints, threaded machining for detachable connections, and precision fitting for mechanical parts. Post-installation, clean residues and inspect dimensional accuracy promptly.
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Usage Precautions
Avoid direct contact with carbon steel to prevent galvanic corrosion; outdoor applications need proper fixing to resist wind loads. For acidic/alkaline media, select 316L grade and check for wear regularly.
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Maintenance Tips
Clean daily with neutral detergent; remove minor rust with specialized removers then re-passivate; inspect for cracks or deformation quarterly. Store in dry, ventilated areas to avoid moisture-induced rust, ensuring consistent performance across its service life.
Product Parameters
| Product Name | Stainless Steel Bar |
| Item | Value |
| Standard | ASTM, GB |
| Place of Origin | China |
| Model Number | 304 |
| Application | Building, Mechanical |
| Tolerance | ±1% |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
| Steel Grade | 301, 304N, 310S, 410, 316Ti, 316L, 441, 316, 420J1, 321, 410S, 410L, 436L, 443, S32304, 314, 347, 430, 309S, 304, 439, 409L, 420J2, 436, 445, 304L, 904L, 444, 301LN, 429, 304J1, 317L |
| Surface Finish | Black, Bright |
| Delivery Time | 8–14 Days |
| Shape | Round |
| Grade | 200 Series / 300 Series / 400 Series |
Packing And Shipping
Frequently Asked Questions
Q What is the difference between 304 and 316L stainless steel bars?
304 is the most common grade, offering good general corrosion resistance and is suitable for most everyday applications. 316L contains added molybdenum, which significantly enhances its resistance to chlorides, acids, and harsh chemical environments, making it the preferred choice for marine, medical, and industrial applications.
Q What surface finishes are available for stainless steel bars?
Our stainless steel bars are available in black (hot-rolled) and bright (cold-drawn or polished) surface finishes. Additional options such as pickling, 2B finish, and mirror polishing can be provided depending on your application requirements.
Q What processing services do you offer for stainless steel bars?
We offer a full range of processing services including bending, welding, decoiling, punching, and cutting. Custom dimensions and tolerances (±1%) can be accommodated to meet your specific project requirements.
Q How should stainless steel bars be stored to prevent rust?
Store stainless steel bars in dry, well-ventilated areas away from moisture and humidity. Avoid contact with carbon steel materials or tools, as this can cause galvanic corrosion or surface contamination that may lead to rust over time.
Q What is the typical delivery time for stainless steel bar orders?
Standard delivery time is 8 to 14 business days from the date of order confirmation. Lead times may vary depending on the order quantity, specific grade, and any custom processing requirements. Please contact us for a precise delivery schedule.
Q Which stainless steel bar grade is recommended for outdoor or corrosive environments?
For outdoor applications or environments exposed to acidic, alkaline, or saline conditions, we strongly recommend 316L grade stainless steel bars. Its superior corrosion resistance ensures long-term durability and reduces maintenance frequency compared to standard grades.