Chung Metal provides premium-quality Stainless Steel 317 Rectangular Bars, an austenitic stainless steel with high molybdenum content for extra resistance against chemical attack, particularly against acidic and chloride environments. SS 317 is formulated to operate in conditions of sulfuric, hydrochloric, or tartaric acid exposure. The rectangular bar shape is best suited for structural elements, chemical equipment bases, and machine parts resistant to corrosion. Chung Metal produces 317 rectangular bars with stable quality, high flatness, and smooth finish, appropriate for harsh environments in chemical processing, marine, and pollution control purposes.
SS 317 has 18–20% chromium, 11–15% nickel, and 3–4% molybdenum. It possesses 515–750 MPa tensile strength, 200–300 MPa yield strength, and approximately 40% elongation. It is not magnetic and offers superior resistance to pitting, crevice corrosion, and acid attack. The rectangular bar shape provides structural integrity and flat machining surfaces. Chung Metal supplies 317 bars in a range of sizes with mill finish or special treatment for corrosion-critical uses.
Standard : 317 / 1.4449
Range : 3.17mm to 350mm dia
Designation : ASTM A276, ASME SA276
Finish : Bright, Black, Polish
Thickness: 4.0mm – 100mm
Type: Bright Bar, Black Bars, Hex Bar, Square Bar, Rods, Polish Bar, Forged Bar, Round Bar
Length : Random, Fix & Cut Length
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 317 | 0.08 max | 2 max | 1 max | 0.040 max | 0.03 max | 18 – 20 | 3 – 4 | 11 – 14 | – |
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
| Standard | SS 317 |
| UNS | S31700 |
| WERKSTOFF NR. / DIN | 1.4449 |
Stainless Steel 317 Rectangular Bars generally offer excellent corrosion resistance due to their alloy composition, but additional protective coatings may be beneficial in highly aggressive environments. For most applications, coatings are not necessary unless exposed to extreme conditions.
Choose Stainless Steel 317 Rectangular Bars based on factors like required corrosion resistance, strength, and the specific environmental conditions. Ensure the dimensions and grades meet the mechanical and chemical requirements of your application.
Yes, Stainless Steel 317 Rectangular Bars can be welded using standard welding techniques like TIG and MIG. However, proper heat control is essential to prevent carbide precipitation and maintain corrosion resistance.
317 rectangular bars find application in chemical processing, pulp and paper bleaching, air control pollution, flue gas scrubbers, and food processing systems. Its high molybdenum percentage offers greater resistance in sulfuric acid and chloride-containing environments. The rectangular shape is ideal for structural plates, chemical tanks, machine supports, and corrosive fluid equipment. SS 317 is utilized in wastewater treatment, marine construction, and acidic gas systems. Chung Metal offers these bars to fulfill rigorous service life requirements in abusive industrial environments demanding reliable corrosion performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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