Duplex Steel F51 Round Bars are manufactured and supplied by Bhansali Exports. Having many years of experience in production, we have gained the trust of many sectors around the globe by providing high quality products. S31803 Round bars are produced with a higher level of strength, longer life, and more resistance to corrosion, which is suitable for various uses. We also set standards and prices that could easily compete with other international markets. Our products are certified by worldwide agencies that provide the highest quality, thus ensuring their effectiveness in demanding applications.
Our S31803 Duplex Round Bars are very special due to the following features. These rods are cheaper than expensive metals, yet they have high resistance to pitting and stress corrosion cracking, making them ideal for use in marine and chemical industries. Being reliable round bar suppliers in duplex materials, we serve sectors such as oil and gas, petrochemicals, power generation, and construction. For those searching for a Duplex Steel F51 Round Bars supplier for large scale applications or any niche industrial use, we have an extensive stock and custom offerings in sizes and grades. These round bars are highly usable because of their good weldability and improved machinability in various applications.
- Manufacturing Process of Duplex Steel S31803 F51 Round Bar
- Duplex Steel S31803 F51 Round Bar Specifications
- Types of Duplex Stainless Steel F51 Bars
- Other Types of Duplex Steel S31803 Bars
- Duplex Steel S31803 F51 Equivalent Grades
- Chemical Composition of Duplex Steel S31803 F51
- Mechanical Properties of Duplex Steel F51 Round Bar
- Duplex Steel S31803 F51 Round Bar Applications
- Frequently Asked Questions About Duplex Steel S31803 F51 Round Bar
Being a prominent Duplex S31803 Round Bar supplier, we deliver the most competitive price and quick delivery to your doorstep. We offer our customers superior quality S31803 round bars suitable for use in harsh environments. We pay attention to the client's needs to ensure we deliver solutions that meet them. Today, we remain a supplier of choice for customers worldwide due to our focus on quality, costs and customers.
For more powerful and corrosion-resistant options, check out our Duplex Steel Round Bars and Duplex Steel 329 Round Bars. Contact Bhansali Exports today for global supply and fast delivery.
Heating, rolling, and forming of reinforced steel bars
Quenching
Self-tempering & quality testing
Atmospheric cooling & finishing
| Specifications | ASTM A276, ASTM A479, AMS 5513, AMS 5511, AMS 5647 |
| Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Bar Diameter | 3 ~ 800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm. Width: 10 to 500mm. |
| Square bar size | 4 to 100mm |
| Rectangular Bars | Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm. |
| Hollow Bars | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2 to 495mm Diameter |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
| Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Rolled Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
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Duplex Steel S31803 Round Bar
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Duplex Steel F51 Hex Bar
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UNS S31803 Square Bar
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Duplex Steel 1.4462 Forged Bar
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Duplex Steel S31803 Flat Bar
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Duplex Steel S31803 Polished Bar
F51 duplex bars come in round, flat, square, hexagonal and forged forms under ASTM A276, A479 and A182 specifications. Round bars suit machined shafts and turned components. Forged bars carry a denser as-forged grain structure, which suits valve bodies, pump casings and other high-load components.
- Duplex Steel S31803 Flat Bar
- UNS S31803 F51 Duplex Steel Round Bar
- Duplex Stainless Steel S31803 Round Bar
- Duplex Steel S31803 Hex Bar
- ASTM A479 UNS S31803 Hex Bar
- UNS S31803 Flat Bar
- Duplex Steel S31803 Threaded Bar
- Duplex Steel F51 Square bar
- UNS S31803 Round Bar Supplier
- Duplex Steel 1.4462 Forged Rod
- Duplex Stainless Steel F51 Hexagonal Bar
- ASTM A276 UNS S31803 Bar
- Duplex Steel S31803 Round Bar Stockist
- Duplex Steel F51 Half-Round Rods
- F51 Duplex Stainless Steel Round Bar Suppliers
- Duplex Steel S31803 Round Bar Manufacturers
- DSS F51 Forged Bar
- Duplex Steel S31803 Round Bars
- Duplex Steel UNS S31803 Bars
- ASTM A479 Duplex Steel S31803 Bar
- UNS S31803 Bar Price
- F51 Duplex Stainless Steel Round Bar
- Duplex Steel S31803 Round Bar Suppliers
- Duplex Steel 1.4462 Round Bar Price
- F51 Duplex Stainless Steel Round Bar Manufacturer
- Duplex Stainless Steel F51 Rod Price Per Kg
- UNS S31803 Flat Bar Stock
- Duplex Stainless Steel S31803 Bar
- F51 Duplex Stainless Steel Round Bar Stockists
- Duplex Steel 1.4462 Round Bar
- UNS S31803 Round Bar
- Duplex Steel S31803 Bar
- ASME SA276 DSS S31803 Bar
- ASME SA479 Duplex Steel F51 Bar
Beyond round stock, S31803 bar programs include flat, square and hexagonal sections, each matched to a different shop process. Square and flat sections reduce machining waste on brackets, wear plates and structural supports. Hexagonal bars cut machining time on fasteners and nuts, since the flat faces need no milling.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex Steel | 1.4462 | S31803 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
“ Check Bhansali Exports's offered Duplex Steel S31803 bars Prices, Dimensions & Weight. Place an order or enquire about your requirements. We will glad to be service. ”
In chloride-heavy service, pump shafts, valve stems and fasteners are made from standard 300-series stainless steel, with pits and cracks at the crevice line. S31803 F51 round bars resist this attack while carrying a minimum yield strength of 450 MPa, which is preferred in offshore platforms, desalination plants and chemical processing lines handling seawater or acidic process streams. Machine shops also turn the stock into impeller shafts for marine pump service.
F51 is the ASTM A182 forging and bar designation for UNS S31803, a duplex stainless steel with a near 50:50 ferrite-austenite structure that gives it higher strength than standard austenitic grades.
Yes, mill certificates for this material list F51 as the ASTM/ASME product form designation and S31803 as the UNS composition code; either name identifies the same duplex alloy.
Minimum yield strength sits at 450 MPa, minimum tensile strength at 620 MPa, with 25% minimum elongation. The balanced ferrite-austenite matrix resists pitting, crevice attack and stress corrosion cracking in chloride service.
Stock covers round, flat, square and hexagonal sections in hot-rolled, cold-drawn, forged and bright-finished conditions. Diameter and thickness ranges vary by mill, so buyers should confirm exact sizes against current inventory.
Fabricators machine the round bar into oil and gas wellhead components, pulp and paper processing equipment and structural fasteners for sour-service pipelines. Its resistance to sulfide stress cracking suits environments where hydrogen sulfide would embrittle carbon steel.
Confirm the ASTM specification, A276 for general bar stock or A479 for pressure-retaining parts, along with heat treatment condition and mill test certificate per EN 10204 3.1. NACE MR0175 compliance matters for sour-service orders.