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Stainless Steel 317L Flat, Square, and Hex Bars are low-carbon molybdenum-bearing austenitic stainless steels designed for superior corrosion resistance. The higher molybdenum content enhances their resistance to pitting, crevice corrosion, and chemical attack in chloride-rich environments. Stainless Steel 317L Flat, Square, and Hex Bars are especially suited for use in chemical, marine, and paper industries. Their low carbon content minimizes carbide precipitation during welding, maintaining corrosion resistance in welded zones. These bars are ideal for critical applications requiring durability and strength.
The chemical composition of Stainless Steel 317L Flat, Square, and Hex Bars includes chromium, nickel, and molybdenum, along with reduced carbon content. This composition provides excellent resistance to chemical attacks by sulfurous, acetic, and citric acids. The alloy offers better corrosion resistance than 316L due to its higher alloying elements. Stainless Steel 317L Flat, Square, and Hex Bars maintain structural integrity in highly corrosive environments, including acidic and chloride-containing atmospheres. Their composition ensures excellent long-term performance in aggressive conditions.
Stainless Steel 317L Flat, Square, and Hex Bars exhibit high tensile and yield strength, with good ductility and formability. They maintain mechanical stability and toughness even under elevated temperatures. The alloy demonstrates excellent creep and stress-rupture properties, ensuring reliability under thermal and mechanical stress. Stainless Steel 317L Flat, Square, and Hex Bars perform effectively in conditions requiring both strength and corrosion resistance. Their mechanical properties make them suitable for components subjected to heavy loads and extreme conditions.
These bars offer exceptional resistance to oxidation and scaling in high-temperature environments. Stainless Steel 317L Flat, Square, and Hex Bars also resist sensitization and intergranular corrosion after welding due to their low carbon content. They perform effectively in applications involving acidic chemicals, saltwater exposure, and industrial atmospheres. These bars maintain a clean surface finish and resist tarnishing over long-term use. Their durability and chemical stability make them an ideal choice for corrosive and high-heat environments.
Fabrication and welding of Stainless Steel 317L Flat, Square, and Hex Bars are easily achieved using standard industrial methods. The material offers good machinability and can be welded using TIG, MIG, or conventional fusion techniques. Post-weld annealing is generally not required, ensuring ease of fabrication. Stainless Steel 317L Flat, Square, and Hex Bars can also be polished to achieve an attractive finish and enhanced corrosion protection. Their excellent formability makes them ideal for custom industrial designs.
Applications of Stainless Steel 317L Flat, Square, and Hex Bars include chemical processing equipment, pulp and paper plants, condensers, heat exchangers, and marine hardware. They are also used in pharmaceutical and food processing industries where cleanliness and corrosion resistance are crucial. Stainless Steel 317L Flat, Square, and Hex Bars perform exceptionally in both oxidizing and reducing environments. Their combination of strength, ductility, and corrosion resistance ensures long service life. These bars meet the demands of rigorous industrial operations.
In conclusion, Stainless Steel 317L Flat, Square, and Hex Bars are a premium-grade choice for applications requiring superior corrosion and pitting resistance. Their low carbon and high molybdenum composition ensure stability during welding and exposure to harsh environments. Stainless Steel 317L Flat, Square, and Hex Bars deliver excellent mechanical strength, durability, and longevity. They are ideal for industries such as chemical processing, marine, and energy production. Overall, these bars provide outstanding performance, reliability, and value for demanding applications.
Specification Table
| Property | Specification |
|---|---|
| Material Grade | 317L |
| Type | Flat Square Hex Bar |
| Standard | ASTM A276 / ASTM A479 |
| Finish | Hot Rolled / Cold Finished |
| Surface | Pickled & Passivated |
| Length | 1m – 6m (Custom lengths available) |
| Hex Size | 6mm – 100mm (or as per customer requirement) |
| Packaging | Packed in wooden crates or as per customer request |
| Application | Chemical, Petrochemical, Marine, Pharmaceutical, Food Processing Industries |
Chemical Composition (Typical ranges for SS317L)
Note: Values are typical ranges. Final composition will be confirmed on MTC provided per lot.
| Element | Composition (%) |
|---|---|
| Carbon (C) | Max 0.03 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 11.0 – 14.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Manganese (Mn) | Max 2.0 |
| Silicon (Si) | Max 1.0 |
| Phosphorus (P) | Max 0.045 |
| Sulfur (S) | Max 0.03 |
| Iron (Fe) | Balance |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 515 – 827 |
| Yield Strength (MPa) | 205 (min) |
| Elongation (%) | 40 (min) |
| Hardness (HB) | ≤ 200 |
| Density (g/cm³) | 8.0 |
| Modulus of Elasticity (GPa) | 193 – 200 |
| Melting Point (°C) | 1371 – 1399 |
| Impact Strength | Excellent corrosion and oxidation resistance |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM A276 / A479 | 317L |
| AISI | 317L |
| EN / DIN | 1.4438 / X2CrNiMo18-14-3 |
| JIS | SUS317L |
| GB / China | 0Cr18Ni13Mo3 |
| ISO | 317L |
Dimension & Weight Chart (Selected common sizes)
Below is a representative chart showing outside diameter, wall thickness, inside diameter, cross-sectional area of metal and calculated weight per metre (kg/m). Values are calculated using density = 7.93 g/cm³ and are for guidance — use actual MTC values for procurement & engineering.
| Across Flats (mm) | Thickness (mm) | Weight (kg/m) |
|---|---|---|
| 6 | 6 | 0.226 |
| 8 | 8 | 0.402 |
| 10 | 10 | 0.630 |
| 12 | 12 | 0.907 |
| 16 | 16 | 1.623 |
| 20 | 20 | 2.540 |
| 25 | 25 | 3.968 |
| 30 | 30 | 5.670 |
| 40 | 40 | 10.080 |
| 50 | 50 | 15.750 |
Types Of Stainless Steel 317L Flat Square Hexs and Tubes
Stainless Steel Flat Hex
Monel 400 Flat Hex
Inconel 600 Flat Hex
Hastelloy Flat Hex
super Duplex Flat Hex
Duplex Flat Hex
Monel K500 Flat Hex
Nickel Flat Hex
Frequently Asked Questions (FAQ)
What is Stainless Steel 317L Flat Square Hex?
Stainless Steel 317L Flat Square Hex is a low-carbon, molybdenum-enriched austenitic stainless steel bar with superior corrosion resistance, commonly used in chemical, petrochemical, marine, and food processing industries.
What are the main applications of SS 317L Flat Square Hex?
It is widely used in chemical processing equipment, heat exchangers, marine components, pharmaceutical machinery, and food processing equipment due to its excellent corrosion and heat resistance.
What are the chemical compositions of SS 317L?
Major elements include: Carbon ≤ 0.03%, Chromium 18–20%, Nickel 11–14%, Molybdenum 3–4%, Manganese ≤ 2%, Silicon ≤ 1%, Phosphorus ≤ 0.045%, Sulfur ≤ 0.03%, and the balance is Iron.
What mechanical properties does SS 317L Flat Square Hex have?
Tensile strength: 515–827 MPa, Yield strength: ≥ 205 MPa, Elongation: ≥ 40%, Hardness: ≤ 200 HB, Density: 8 g/cm³, Modulus of elasticity: 193–200 GPa, Melting point: 1371–1399°C.
What standards and equivalent grades does SS 317L meet?
Standards include ASTM A276 / A479. Equivalent grades: AISI 317L, EN/DIN 1.4438 / X2CrNiMo18-14-3, JIS SUS317L, GB 0Cr18Ni13Mo3, ISO 317L.
What sizes and dimensions are available for SS 317L Flat Square Hex?
Hex sizes range from 6 mm to 100 mm, lengths from 1 m to 6 m (custom lengths available), with weights varying according to size. See the Dimension & Weight Chart for detailed information.
Flats Square Hexs Supplier
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