Super duplex round bar Manufacturer & Supplier in India
Unifit Fastener is a reliable manufacturer and supplier of super duplex round bars of high quality of materials that should be used under strict industrial standards. We have a wide variety of products, such as super duplex S32750 round bars, hex bars, square bars, and flat bars, which are focused on various industrial requirements. Our bars are produced with highly sophisticated methods and under strict quality assurance measures, ensuring they possess superior corrosion resistance, a high level of strength and durability, and can be used in applications of high demand.
These bars are very common in many industries, like oil and gas, chemical processing, marine, power generation, food processing, and aerospace industries, where reliability and performance are very important. We will make sure that our bars meet global standards such as ASTM A276, ASTM A479, UNS S32750, UNS S32760, ASME, EN, and ANSI, and it ensures that the quality of our bars is the same throughout each batch.
Our Super Duplex Bars are available in many sizes and can be ordered in single random, twin random, or cut-to-length versions to be flexible to your needs in a project. It could be machinery parts, shafts, seamless pipes, or construction, our products perform well beyond any others.
We provide high-quality products at reasonable costs through the dedication of accuracy in production, timely delivery, and reasonable prices to provide products that are reliable, efficient, and durable for your operations. Trust us for premium super duplex bars built to exceed expectations in every application.
Request QuoteTable of Contents
- What is a Super Duplex Round Bar ?
- Specification of Super Duplex Round Bar
- Send Your Enquiry
- Types of Super Duplex Stainless Steel Rod
- Equivalents of Super Duplex Round Bar
- Chemical Composition of Super Duplex Round Bar
- Mechanical Properties Super Duplex Round Bar
- 2507 Super Duplex Round Bar Sizes
- Alloy Weight Calculator
- Applications of Super Duplex Round Bar
- FAQs about Super Duplex Round Bar
What is a Super Duplex Round Bar ?
The super duplex round bar has a reputation for having a well-balanced composition of high chromium and low nickel, which makes it have amazing corrosion strength and good mechanical behavior. It is made up of an equal composition of ferrite and austenite, thus providing high strength, great chemical attack resistance, and stable stress corrosion resistance. Due to the fact that it is durable, it works in rough and strenuous conditions. The super duplex round bars are mostly used in various industries due to the high tensile strength, polished finish, precise dimensions, high service life, and low maintenance requirements. They are also an effective and reliable option in critical applications due to their cost-effectiveness and corrosion resistance.
Grades of Super Duplex Round Bar
Specification of Super Duplex Round Bar
| Product Type | Specification | Details |
|---|---|---|
| SDSS Round Bar | Length | Up to 12" |
| Diameter | 3 – 800 mm | |
| 25Cr Super Duplex Flat Bar | Width | 10 – 500 mm |
| Thickness | 2 – 100 mm | |
| Super Duplex Alloy Cold Drawn Bar | Length | Up to 50 feet |
| Super Duplex Steel Forged Bar | Surface Finish | 63 RA, 32 RA, 6 RA |
| Super Duplex SS Rod | Precision Straightness | TIR/FT 0.0015", TIR/FT 0.006" |
| Super Duplex Stainless Hexagonal Bar | ISO 286 Tight Tolerances | D8, D9, G5, G6 |
| SS Super Duplex Bright Bar | Standards | API, ASTM A182, ASTM A923, ASTM A479, NACE MRO175, ISO 15156, ASTM A276 |
| Super Duplex Annealed Bar | Quality Test & MTC | Failure Analysis, NDT, Metallographic Testing, 3.1 Certification, Mechanical Testing |
| 25Cr Super Duplex Stainless Steel Cold Drawn Bar | ISO Tolerances | H6, H7, H8, H9, H10, H11 |
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Types of Super Duplex Stainless Steel Rod
Super Duplex Stainless Steel Square Bar
Super Duplex 2507 Forged Bar
WNR 1.4410 Bright Bar
SDSS Rectangular Bar
Type 25cr Duplex Hex Bar
Super Duplex Flat Bar
SS Super Duplex Shaft
Super Duplex Alloy Billet
25cr Duplex Steel Bloom
Steel Super Duplex Polished Bar
25cr Super Duplex Cold Drawn Bar
SDSS Hot Rolled Bars
Stainless Steel Super Duplex Annealed Bar
Equivalents of Super Duplex Round Bar
| Grade | UNS | WNR. |
|---|---|---|
| Super Duplex 2507 | S32750 / S32760 | 1.4410 |
Chemical Composition of Super Duplex Round Bar
| Grade | Standard | Cu % | Si % | S % | P % | C % | N2 % | Mn % | Cr % | Ni % | Mo % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS S32750 | ASTM A240:2018 | 0.5 | 0.8 | 0.02 | 0.035 | 0.03 | 0.24–0.32 | 1.2 | 24–26 | 6.0–8.0 | 3–5 |
| F-60 | ASTM A182:2018 | — | 1 | 0.02 | 0.03 | 0.03 | 0.14–0.2 | 2 | 22–23 | 4.5–6.5 | 3.0–3.5 |
| 1.4410 | DIN EN 10088-3:2014 | — | 1 | 0.015 | 0.035 | 0.03 | 0.24–0.35 | 2 | 24–26 | 6.0–8.0 | 3.0–4.5 |
| 1.4460 | DIN EN 10088-3:2014 | — | 1 | 0.03 | 0.035 | 0.05 | 0.05–0.2 | 2 | 25–28 | 4.5–6.5 | 1.3–2.0 |
Mechanical Properties Super Duplex Round Bar
| Tensile Strength (Rm) | Proof Strength (Rp0.2) | Hardness (HB Approx.) | Elongation (Aᵦ) |
|---|---|---|---|
| 760–930 MPa | ≥ 550 MPa | 260 | ≥ 25% |
2507 Super Duplex Round Bar Sizes
| ASTM Diam. (mm²) | Japanese Bar Size | Japanese Diam. (mm) | US Bar Size | US Diam. (Inch) | Metric Bar Size | Metric Diam. (mm) |
|---|---|---|---|---|---|---|
| 200 | 15M | 10 | #3 | 0.375 | 5.5 | 5.5 |
| 100 | 10M | 6 | #2 | 0.250 | 5 | 5 |
| 300 | 20M | 13 | #4 | 0.500 | 6 | 6 |
| 700 | 30M | 19 | #6 | 0.750 | 8 | 8 |
| 500 | 25M | 16 | #5 | 0.625 | 7 | 7 |
| 1000 | 35M | 22 | #7 | 0.875 | 9 | 9 |
| 2500 | 55M | 29 | #9 | 1.125 | 11 | 11 |
| 1500 | 45M | 25 | #8 | 1.000 | 10 | 10 |
| — | — | 35 | #11 | 1.375 | 14 | 14 |
| — | — | 41 | #13 | 1.625 | 18 | 18 |
| — | — | 38 | #12 | 1.500 | 16 | 16 |
| — | — | 32 | #10 | 1.250 | 12 | 12 |
| — | — | 44 | #14 | 1.750 | 20 | 20 |
| — | — | 51 | #16 | 2.000 | 25 | 25 |
| — | — | 48 | #15 | 1.875 | 22 | 22 |
| — | — | 57 | #18 | 2.250 | 28 | 28 |
| — | — | — | — | — | 36 | 36 |
| — | — | — | — | — | 32 | 32 |
| — | — | — | — | — | 40 | 40 |
| — | — | — | — | — | 50 | 50 |
| — | — | — | — | — | 44 | 44 |
Alloy Weight Calculator
Applications of Super Duplex Round Bar
- Oil and gas industry applications
- Pulp and paper.
- Desalination
- Mining and mineral industries.
- Marine industries.
- Power generation.
- Flue-gas desulfurization.
- Pollution control.
- Chemical, pharmaceutical.
- Mining and mineral industries.
- Applications of S32750 Super Duplex Stainless Stell
FAQs about Super Duplex Round Bar
Is Super Duplex better than 316?
Yes, Super Duplex offers significantly higher strength and superior corrosion resistance compared to 316 stainless steel. It performs better in harsh environments, especially those containing chlorides, making it suitable for more demanding applications.
What is Super Duplex used for?
Super Duplex is used in industries that require excellent corrosion resistance and high mechanical strength. Common applications include oil and gas equipment, seawater systems, chemical processing plants, heat exchangers, marine hardware, and pressure vessels.
Is Super Duplex hard to machine?
Super Duplex can be more challenging to machine than standard stainless steels due to its high strength and tough microstructure. However, with proper tooling, slower speeds, and controlled machining conditions, it can be machined effectively.
Can Super Duplex be welded?
Yes, Super Duplex can be welded, but it requires controlled welding procedures to maintain the correct balance of ferrite and austenite. Using suitable filler materials and temperature control ensures strong, corrosion-resistant welds.