Super Duplex
Steel Round Bar
Engineered for extreme environments. Precision ground round bars providing exceptional corrosion resistance and high mechanical strength for global industrial infrastructure.
Standard
ASTM A276
Yield
550 Min MPa
Diameter
10-600mm
Origin
Global Supply
Super Duplex Steel Round Bar Manufacturer, Supplier & Exporter in India
United Stainless LLP is a globally recognized manufacturer, supplier, stockist, and exporter of Super Duplex Steel Round Bars, offering premium-grade materials engineered for high-performance industrial applications. Our Super Duplex round bars, including UNS S32750 (2507) and UNS S32760, are widely known for their exceptional strength, superior corrosion resistance, and excellent durability under extreme environments.
We serve a wide spectrum of industries such as oil & gas, petrochemical, offshore platforms, marine engineering, chemical processing, and power generation, where material reliability is critical. With a strong supply chain network and global export capabilities, we deliver precision-engineered Super Duplex bars that comply with international standards and client-specific requirements.
| Super Duplex Round Bar Specification | |
|---|---|
| Specifications | Super Duplex Round Bar |
| Standards | ASTM A276, A479 / ASME SA276, SA479 |
| Method | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Thickness | 100 to 6000mm |
| Length | 1 to 6 Meters |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
Chemical Composition (%)
C
0.030 max
Mn
1.20 max
Si
0.80 max
P
0.035 max
S
0.020 max
Cr
24.00 – 26.0
Mo
3.00 – 5.00
Ni
6.00 – 8.00
N
0.24 – 0.32
Fe
58.095 min
Super Duplex Round Bar Mechanical Properties
0.2% Proof Stress (N/mm2 ) [ksi] minimum
550 [79.8]
Ultimate Tensile Strength (N/mm2) [ksi] minimum
750 [108.8]
Elongation (%) minimum
25
Reduction of Cross Section Area (%) minimum
45
Hardness (HBN)
270max
Super Duplex Steel Grades
Super Duplex 2507
Super Duplex Zeron 100
Duplex S31803
Duplex S32205
Duplex S32750
Duplex S32760
Duplex S31803
Duplex S32205
Industrial Applications
Engineered for extreme reliability in the world’s most critical infrastructures.
Offshore Oil & Gas
Critical components for subsea piping and platform structures.
Chemical Processing
Aerospace
Power Generation
High-pressure heat exchangers and flue gas desulfurization.
Top Super Duplex Round Bar Brands We Deal In
Super Duplex Round Bar Weight Chart
Super Duplex Round Bars may be customized in any thickness to meet the needs of the client; the table below shows the standard thickness of Super Duplex Round Bar.
| ASTM A276 UNS S32760 Round Bar Size Dimensions | |||||||
|---|---|---|---|---|---|---|---|
| Metric | US Bar | ASTM/ Canadian | Japanese | ||||
| Bar Size | Diam. (mm) | Bar Size | Diam. (Inch) | Bar Size | Diam. (mm2) | Bar Size | Diam. (mm) |
| 5 | 5 | #2 | 0.250 | 10M | 100 | 6 | 6 |
| 5.5 | 5.5 | #3 | 0.375 | 15M | 200 | 10 | 10 |
| 6 | 6 | #4 | 0.500 | 20M | 300 | 13 | 13 |
| 7 | 7 | #5 | 0.625 | 25M | 500 | 16 | 16 |
| 8 | 8 | #6 | 0.750 | 30M | 700 | 19 | 19 |
| 9 | 9 | #7 | 0.875 | 35M | 1000 | 22 | 22 |
| 10 | 10 | #8 | 1.000 | 45M | 1500 | 25 | 25 |
| 11 | 11 | #9 | 1.125 | 55M | 2500 | 29 | 29 |
| 12 | 12 | #10 | 1.250 | - | - | 32 | 32 |
| 14 | 14 | #11 | 1.375 | - | - | 35 | 35 |
| 16 | 16 | #12 | 1.500 | - | - | 38 | 38 |
| 18 | 18 | #13 | 1.625 | - | - | 41 | 41 |
| 20 | 20 | #14 | 1.750 | - | - | 44 | 44 |
| 22 | 22 | #15 | 1.875 | - | - | 48 | 48 |
| 25 | 25 | #16 | 2.000 | - | - | 51 | 51 |
| 28 | 28 | #18 | 2.250 | - | - | 57 | 57 |
| 32 | 32 | - | - | - | - | - | - |
| 36 | 36 | - | - | - | - | - | - |
| 40 | 40 | - | - | - | - | - | - |
| 44 | 44 | - | - | - | - | - | - |
| 50 | 50 | - | - | - | - | - | - |
Types of Super Duplex Round Bar
As a leading Super Duplex Round Bar Supplier, we have a large stock of Super Duplex Round Bar that can be rapidly delivered to prominent Indian cities.
Stainless Steel Rods
Cold Drawn Stainless Steel Bar
Stainless Steel Black Bar
Polished Stainless Steel Bar
Stainless Steel Forged Bar
Cold Rolled Stainless Steel Bar
Super Duplex Round Bar
ss Super Duplex Round Bar
Have questions about Super Duplex Round Bars, pricing, or specifications? Our team is here to help you with expert guidance, quick quotations, and reliable support. Reach out to us through your preferred channel and get a fast response for all your requirements.
- WhatsApp Us
- Mail Us
- Call Us
Super Duplex Round Bar Grade
Our dedication to quality guarantees that every Super Duplex Round Bar meets the highest standards, establishing us as a reliable Super Duplex Round Bar Manufacturer in India.
| Super Duplex Round Bar Equivalent Grade | ||
|---|---|---|
| GRADE | Super Duplex 2507 | Super Duplex 2507 |
| UNS | S32750 | S32760 |
| WERKSTOFF NR. | 1.4410 | 1.4501 |
| EN | X2CrNiMoN25-7-4 | X2CrNiMoCuWN25-7-4 |
| JIS | SUS 2507 | SUS Zeron 100 |
Super Duplex Round Bar Price List
Explore our updated Super Duplex Round Bar Price List, offering competitive and transparent pricing for premium-quality bars in various grades, sizes, and specifications.
| Stainless Steel Round Bar Price List | |
|---|---|
| 1.4542 SS ROUND BARS 6 MM | 974/Kg |
| SS ROUND BARS- 1.000 MM | 423/Kg |
| 1.41121 SS ROUNDS 8 MM | 974/Kg |
| 1.4542 SS ROD 8 MM | 974/Kg |
| 63.5 MM DIA X 1600MM SS ROUND BARS | 672/Kg |
Super Duplex Round Bar Client Project Report - United Stainless LLP
Super Duplex Round Bar is supplied in several places in India. United Stainless LLP is a leading Super Duplex Round Bar Supplier, our firm is a household name, and our brand represents speedy delivery, low pricing, and high-quality Super Duplex Round Bars. As a prominent Super Duplex Round Bar Supplier in India, we have delivered Super Duplex Round Bar to several cities and industries.
Additional Information - Super Duplex Round Bar Manufacturer
- Payment Modes: LC (Letter of Credit), TT (Telegraphic Transfer or Wire Transfer), Cheque, and others.
- Packaging: Super Duplex Round Bars are packaged with caution, and safety so they reach our client as well as he would expect. Packaging Chartges Extra.
- Port of Dispatch: Mumbai ports in the Maharashtra, state of India.
- Tax: 18% GST.
Leading Super Duplex Round Bar Supplier in listed Cities
United Stainless LLP is a trusted name as a leading supplier of Super Duplex Round Bars, delivering premium-quality products across major industrial and commercial hubs in India. With a strong distribution network and commitment to excellence, we ensure timely delivery, superior material quality, and customer satisfaction in every order.
We proudly supply Super Duplex Round Bars to key cities including Bengaluru, Chennai, Hyderabad, Cochin, Tiruppur, Sivakasi, Thiruvananthapuram, Vijayawada, Rajahmundry, Salem, Visakhapatnam, Mangalore, Ahmedabad, Pune, Kolkata, New Delhi, Mumbai, Jaipur, Surat, Gandhinagar, Bhiwandi, Jamnagar, Bhubaneswar, Firozabad, Bokaro Steel City, Rajkot, Bharuch, Panna, Raipur, and Ludhiana.
Our Super Duplex Round Bars are widely used in industries such as oil & gas, petrochemical, marine, power generation, chemical processing, and construction, thanks to their exceptional strength, corrosion resistance, and durability in extreme environments.
Prominent Super Duplex Round Bar Exporter in Listed Countries
United Stainless LLP is a globally recognized exporter of Super Duplex Round Bars, supplying high-performance materials to a wide range of international markets. With a strong global presence and efficient logistics network, we ensure timely delivery, premium quality, and compliance with international standards across every shipment.
We proudly export Super Duplex Round Bars to countries including Saudi Arabia, Oman, Kuwait, Netherlands, Iran, Bahrain, Qatar, UAE, Africa, Norway, Nigeria, Mexico, Canada, Venezuela, United Kingdom, United States, South Africa, Malaysia, Bangladesh, Turkey, Singapore, Sri Lanka, Australia, Brazil, and Egypt.
Our Super Duplex Round Bars are highly demanded in global industries such as oil & gas, petrochemical, marine, power generation, desalination, and chemical processing, due to their exceptional corrosion resistance, high strength, and durability in harsh environments.
Frequently Asked Questions – Super Duplex Steel Round Bars
Find answers to the most common questions about Super Duplex Steel Round Bars, including grades, specifications, properties, applications, and industry standards. This section is designed to help buyers, engineers, and industry professionals make informed decisions by understanding the performance, durability, and advantages of super duplex materials in demanding environments such as oil & gas, marine, and chemical processing industries.
1. What is a Super Duplex Steel Round Bar?
Super Duplex Steel Round Bar is a high-performance stainless steel product with a mixed austenitic-ferritic structure, offering exceptional strength and corrosion resistance, especially in harsh environments like marine and chemical industries.
2. What are the common grades of Super Duplex Round Bars?
The most commonly used grades include:
- UNS S32750 (F53 / 2507)
- UNS S32760 (F55)
These grades are known for superior durability and resistance to pitting and crevice corrosion.
3. What are the key properties of Super Duplex Steel Round Bars?
Key properties include:
- High tensile and yield strength
- Excellent resistance to chloride stress corrosion
- Superior pitting and crevice corrosion resistance
- Good weldability and machinability
4. What sizes are available in Super Duplex Round Bars?
Typically available in:
- Diameter: 3 mm to 800 mm
- Length: Up to 6 meters or customized
Sizes may vary depending on manufacturer and requirements.
5. What standards are followed for Super Duplex Round Bars?
Common standards include:
- ASTM A276
- ASTM A479
- ASTM A182
- ASME SA276
These ensure quality, strength, and compliance for industrial applications.
6. What are the applications of Super Duplex Steel Round Bars?
They are widely used in:
- Oil & Gas industry
- Marine and offshore structures
- Chemical processing plants
- Desalination plants
- Power generation
Due to their high corrosion resistance and strength.
7. What is the difference between Duplex and Super Duplex Steel?
Super Duplex Steel contains higher chromium, molybdenum, and nitrogen content, providing:
- Better corrosion resistance
- Higher strength
- Improved performance in extreme environments
Compared to standard duplex steel.
8. What surface finishes are available?
Common finishes include:
- Polished
- Bright
- Rough turned
- Annealed
These finishes depend on application and customer requirements.
9. Can Super Duplex Round Bars be customized?
Yes, they can be customized in terms of:
- Size and diameter
- Length
- Surface finish
- Cutting and machining
Custom fabrication services are commonly offered by suppliers.
10. What tests and certifications are provided?
Typical certifications include:
- EN 10204 3.1 / 3.2
- PMI Testing
- Mechanical Testing
- Non-Destructive Testing (NDT)
These ensure product quality and traceability.
