Latham Steel, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of Stainless Steel 317L Flat Bars. These high-quality materials are crafted to offer outstanding corrosion resistance, strength, and durability. Stainless Steel 317L is a low-carbon, molybdenum-enriched austenitic grade that excels in resisting pitting, crevice, and general corrosion, making it perfect for tough chemical and marine environments. Latham Steel guarantees that every flat bar adheres to strict international standards, ensuring precise, dependable, and long-lasting performance across various industries, including chemical processing, petrochemical, marine, and pharmaceuticals.
The composition of Stainless Steel 317L Flat Bars includes about 18–20% chromium, 11–13% nickel, 3–4% molybdenum, and a maximum of 0.03% carbon. This blend provides remarkable resistance to corrosion in chloride-rich and acidic settings while also maintaining impressive mechanical properties, such as a tensile strength ranging from 515 to 750 MPa and a yield strength between 205 and 450 MPa. The flat bar shape allows for easy fabrication, consistent structural integrity, and precise dimensions, making it ideal for a wide range of industrial and structural 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.
You’ll find Stainless Steel 317L Flat Bars commonly used in chemical and petrochemical plants, desalination systems, marine structures, pharmaceutical equipment, and various machinery components. They’re perfect for creating supports, flanges, structural frameworks, and other parts that face corrosive or harsh conditions. With their exceptional corrosion resistance, mechanical strength, and dimensional accuracy, these flat bars ensure long-term reliability, require minimal maintenance, and deliver consistent performance, making them a top choice for engineers and manufacturers in search of durable, high-performance stainless steel solutions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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