Semih Metals, based in Istanbul, Turkey, is a reliable manufacturer and supplier of Stainless Steel 317L Flat Bars. They pride themselves on delivering top-notch stainless steel products that are built to withstand corrosion, offer strength, and ensure durability. Crafted with precision and under strict quality control, these flat bars boast excellent dimensional accuracy, a smooth surface finish, and dependable mechanical performance. Semih Metals guarantees that their Stainless Steel 317L Flat Bars meet the rigorous standards of various industries, including chemical processing, petrochemical, marine, food processing, and pharmaceuticals, where resistance to harsh chemicals and long-lasting durability are essential.
The composition of Stainless Steel 317L Flat Bars primarily includes iron, chromium (18–20%), nickel (11–15%), and molybdenum (3–4%), with a low carbon content (≤0.03%) to reduce carbide precipitation during welding. This high-alloy makeup provides outstanding resistance to pitting, crevice corrosion, and general corrosion in acidic and chloride-rich environments. On the mechanical side, 317L offers solid tensile and yield strength, toughness, and reliable ductility. Its blend of corrosion resistance and mechanical reliability makes it a perfect fit for structural, chemical, and high-performance industrial applications.
Standard ASTM A276, A479 / ASME SA276, SA479
Range 3.17 MM TO 350 MM DIA
Diameter 25mm to 152mm
Size Tolerance h8, h9(DIN 671), h10, h11, ASTM A484, DIN 1013
Finish Bright, Polish & Black
Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc.,
Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Other Services Machining (CNC), Centreless Grinding (CG), Heat Treatment, Anneling, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317L | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 317L | 1.4449 | S31700 | SUS 317 | – |
Stainless Steel 317L is primarily composed of iron, with high levels of chromium (18-20%) and nickel (11-15%), along with molybdenum (3-4%) for enhanced corrosion resistance. It also contains small amounts of carbon, manganese, silicon, and phosphorus.
Yes, Stainless Steel 317L Flat Bar is highly resistant to corrosion, especially in harsh environments. Its high chromium, nickel, and molybdenum content enhances resistance to pitting, crevice corrosion, and general oxidation, making it ideal for chemical and marine applications.
Yes, Stainless Steel 317L Flat Bar can be welded easily using standard welding techniques such as TIG, MIG, and SMAW. Its low carbon content minimizes carbide precipitation during welding, ensuring strong joints and excellent corrosion resistance in the weld area.
Stainless Steel 317L Flat Bars find their place in various applications that demand resistance to corrosion and chemical attacks. They are frequently used in chemical processing equipment, heat exchangers, storage tanks, piping systems, and marine structures. Moreover, they play a vital role in food and pharmaceutical processing equipment, offshore platforms, and pollution control systems, where hygiene and corrosion resistance are paramount. Thanks to their durability, mechanical strength, and ability to withstand harsh chemicals, Stainless Steel 317L Flat Bars deliver long-lasting performance in challenging industrial, marine, and chemical environments.
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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