- No. 51 Fuyang Road, Dalang Town, Dongguan City, Guangdong Province
- info@tongyimetal.com
- +8613650063736
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| Alloy Designation | Main Component（%） | ||||||||||
| C | Si | Mu | P | S | Ni | Cr | Mo | Cu | Pb | N | |
| SUS303 | ≤0.15 | ≤1.00 | ≤2.00 | ≤0.20 | ≥0.15 | 8.00~10.00 | 17.00~19.00 | ≤0.60 | – | – | – |
| SUS303CU | ≤0.15 | ≤1.00 | ≤3.00 | ≤0.20 | ≥0.15 | 8.00~10.00 | 17.00~19.00 | ≤0.60 | 1.50~3.50 | – | – |
| SUS304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 8.00~10.50 | 18.00~20.00 | – | – | – | – |
| SUS304L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 9.00~13.00 | 18.00~20.00 | – | – | – | – |
| 304FL | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 8.00~10.50 | 18.00~20.00 | – | – | – | – |
| SUS310S | ≤0.08 | ≤1.50 | ≤2.00 | ≤0.045 | ≤0.030 | 19.00~22.00 | 24.00~26.00 | – | – | – | – |
| SUS316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 10.00~14.00 | 16.00~18.00 | 2.00~3.00 | – | – | – |
| SUS316L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 12.00~15.00 | 16.00~18.00 | 2.00~3.00 | – | – | – |
| SUS316F | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≥0.10 | 10.00~14.00 | 16.00~18.00 | 2.00~3.00 | – | – | – |
| SUS321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 9.00~13.00 | 17.00~19.00 | – | – | – | – |
The 303Cu stainless steel round bar is an austenitic stainless steel specifically designed to enhance cutting performance and wear resistance. By adding copper to standard 303 stainless steel, 303Cu not only retains excellent corrosion resistance but also significantly improves its machinability and cuttability. It is widely used in high-precision machining, screws, bolts, and other applications where high machining efficiency is required.
The 303Cu stainless steel round bar combines excellent mechanical properties with outstanding machinability, making it an ideal material for high-precision machining. The addition of copper greatly improves lubrication and chip removal during cutting, resulting in a smoother and more efficient machining process. In addition, 303Cu stainless steel maintains the corrosion resistance and strength of traditional 303 stainless steel while exhibiting a lower tendency to harden, making it particularly effective in continuous and automated machining operations. 303Cu stainless steel round bars are widely used in the manufacture of various precision parts such as screws, bolts, valve components, and connectors in electronic devices. It is well-suited for industries with stringent material requirements, such as aerospace, automotive manufacturing, electronics, and precision instruments.
Our company’s products are suitable for various fields such as digital products, electrical appliances, medical, office equipment, power clocks, electromechanical, robotics, automotive, electronics, etc. We strive to create high-quality products in the industry.
Guangdong tongyi metal technology co., ltd. Is a leading brand specializing in the production of precision special steel. We offer a wide range of standard products and excel in providing custom steel grades, shape customization, and bulk orders to meet the stringent requirements of precision hardware parts processing. driving technological innovation and delivering high-quality metal materials and solutions to our clients.
We have 168 imported high-precision equipment and more than 30 core technicians.
Up to 30000 tons of metal materials can be produced annually
We collaborate with over 10000 strategic partners globally
The company has more than 100 production equipment imported from japan and 38 core technicians. Strictly implement iso9001 management system in the production process, import high-precision testing equipment can provide accurate data support to win customer trust and support with high quality and fast delivery.
The same metal has 68 sets of measuring equipment imported from Japan, such as Mitoyo micrometer, straightness test, hardness tester, spectrometer, magnetic detector, etc. The outer diameter accuracy of the material is measured once every 5 minutes, and the quality is all qualified before packaging and shipping.
The same metal has 15 years of stainless steel rod/wire material research and development, design, production experience, foreign large strength manufacturers. Customized matching material solutions according to customer needs in various industries.
offers clear and concise answers to the most frequently asked questions about our stainless steel bars, ensuring you get the information you need quickly and efficiently.
We offer a variety of stainless steel, titanium alloy, quenched and tempered steel bars and wires, including 303, 304, 316, 410, and more. We can also customize the composition according to your requirements.
Yes, we can customize the length of stainless steel bars according to the specific requirements of our customers, reducing material waste and lowering costs.
Our stainless steel bars are widely used in various industries, including construction, automotive, medical devices, food processing, and aerospace.
We offer a variety of surface treatment options, including polishing, brushing, pickling, and mirror finishing, to meet different application needs.
We adhere to the ISO9001 quality management system, conducting strict quality control at every stage from raw material procurement to the production process, and we also offer third-party inspection services.
Materials, appearance, dimensions, straightness, smoothness, etc. can be customized according to needs
Materials, appearance, dimensions, straightness, smoothness, etc. can be customized according to needs
