Semih Metals, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-performance stainless steel products for customers around the world. Among their specialized offerings, **Stainless Steel 303 Bars and Rods** are crafted for applications that demand excellent machinability while still providing solid corrosion resistance. With a keen focus on precision and durability, these bars and rods are perfect for high-speed machining and components that require tight tolerances. Semih Metals guarantees that every 303 bar and rod adheres to international standards, thanks to their advanced manufacturing techniques and rigorous quality control, catering to industries like aerospace, automotive, mechanical engineering, and industrial automation.
**Stainless Steel 303 Bars and Rods** are made from austenitic stainless steel alloys, featuring 17–19% chromium, 8–10% nickel, and a bit of sulfur to enhance machinability. They typically boast mechanical properties such as a tensile strength of 600 MPa, yield strength of 240 MPa, and an elongation of about 35%. While the added sulfur improves machinability, it does slightly compromise corrosion resistance compared to 304. These bars and rods remain non-magnetic when annealed and offer a great surface finish and dimensional stability, making them ideal for components that require extensive turning, milling, or drilling.
Specification : ASTM A276, A479 / ASME SA276, SA479
Square Bars : 18mm – 47mm (11/16″ to 1-3/4″)
Round Bars : Outside Diameter in the range of 4mm to 500mm
Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Bright Bars : Outside Diameter in the range of 4mm to 100mm
Form : Round, Square, Hex (A/F), Rectangle Etc.
Hex Bars : 18mm – 57mm (11/16″ to 2-3/4″)
Length : 1 to 6 Meters, Custom Cut Lengths
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
| CHEMICAL COMPOSITION | |
|---|---|
|
ASTM |
A582 |
|
UNS |
S30300 |
|
Type |
303 |
|
Carbon (%) |
0.15 |
|
Manganese (%) |
2 |
|
Phosphorous (%) |
0.2 |
|
Sulfur (%) |
0.15 min |
|
Silicon, Max (%) |
1 |
|
Chromium (%) |
17.0-19.0 |
|
Nickel (%) |
8.0-10.0 |
|
Molybden (%) |
— |
|
Selenium (%) |
— |
|
Other Elements (%) |
— |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 85,000 | Psi – 45,000 | 50% |
| TYPE | MIN SIZE | MAX SIZE |
|---|---|---|
|
Round Bar |
1/8” dia |
8-1/2” |
|
Square Bar |
3/16” |
3/4” |
|
Hex Bar |
3/8” |
1-3/4” |
|
Flat Bar |
upon request |
| STANDARD | WERKSTOFF NR. | UNS | JIS |
| SS 303 | 1.4305 | S30300 | SUS 303 |
Stainless Steel 303 Bars and Rods are commonly used in industries such as aerospace, automotive, medical, and manufacturing. They are perfect for producing components like fasteners, surgical instruments, fuel lines, and machinery parts.
Yes, Stainless Steel 303 Bars and Rods offer excellent corrosion resistance, particularly against a range of acids, chemicals, and weathering, making them suitable for use in both industrial and outdoor environments.
Stainless Steel 303 Bars and Rods are specifically designed for excellent machinability due to the addition of sulfur and phosphorus, which improve cutting and machining performance. This makes them ideal for high-precision applications like fasteners, shafts, and gears.
Stainless Steel 303 Bars and Rods find their place in applications that need high-speed machining with minimal tool wear. They’re perfect for crafting nuts, bolts, bushings, gears, shafts, and precision turned parts across the **automotive, aerospace, electronics, and mechanical industries**. Their ability to maintain structural integrity under mechanical stress makes them a go-to choice for high-volume CNC machining. While they’re not the best option for marine or highly corrosive environments, 303 bars and rods are still a reliable choice for many other applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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