Duplex Steel Round Bars
Duplex Steel Round Bars Manufacturer & Suppliers In India
Duplex steel round bars are high-performance products known for their excellent strength, corrosion resistance, and durability in harsh environments. These bars combine the properties of both austenitic and ferritic stainless steels, making them ideal for demanding industrial applications. Popular grades such as duplex 2205 round bar and super duplex round bar are widely used across industries like oil & gas, marine, chemical processing, and construction.
At Stellar Alloys Steel Pipes and Tubes, we specialize in manufacturing and supplying premium quality duplex steel round bars that meet international standards such as ASTM A276 S31803 and UNS S32750. Our range includes super duplex 2507 round bar, UNS S31803 round bar, and UNS S32750 round bar, ensuring superior performance in corrosive and high-pressure environments.
These duplex round bars offer high tensile strength, excellent resistance to stress corrosion cracking, and improved weldability. With increasing demand for duplex steel bar solutions globally, industries prefer these materials for their long service life and cost-effectiveness.
Whether you are looking for a duplex steel round bar supplier or exporter in India, Stellar Alloys delivers precision-engineered products tailored to your requirements. Our commitment to quality, competitive pricing, and timely delivery makes us a trusted name in the market for duplex stainless steel round bars.
Table of Contents
- Specification of Duplex Steel Round Bars
- Types of Duplex Steel Round Bars
- Chemical Composition of Duplex Steel Round Bars
- Mechanical Properties Duplex Steel Round Bars
- Duplex Steel Round Bars Price List
- Applications & Uses Duplex Steel Round Bars
- Why Choose Stellar Alloys for Duplex Steel Round Bars?
- FAQs
Specification of Duplex Steel Round Bars
Parameter | Details |
Standards | ASTM A276 / ASTM A479 |
Grades | S31803, S32205, S32750, S32760 |
Size Range | 3mm to 500mm Diameter |
Form | Round, Square, Hex, Flat |
Finish | Black, Bright, Polished |
Length | Single Random, Double Random, Cut Length |
Types of Duplex Steel Round Bars
Duplex S31803 Round Bars
Duplex S32205 Round Bars
Chemical Composition of Duplex Steel Round Bars
Element | Composition (%) |
Chromium (Cr) | 21 – 26 |
Nickel (Ni) | 4.5 – 8 |
Molybdenum (Mo) | 2.5 – 4 |
Nitrogen (N) | 0.1 – 0.3 |
Iron (Fe) | Balance |
Mechanical Properties Duplex Steel Round Bars
Property | Value |
Tensile Strength | 620 MPa (min) |
Yield Strength | 450 MPa (min) |
Elongation | 25% |
Hardness | ≤ 290 HB |
Duplex Steel Round Bars Price list
Product | Price Range (INR/kg) |
Duplex 2205 Round Bar | ₹250 – ₹400 |
Super Duplex 2507 Round Bar | ₹400 – ₹650 |
ASTM A276 S31803 Round Bar | ₹260 – ₹420 |
Note: Prices may vary depending on size, quantity, and market conditions.
Applications & Uses Duplex Steel Round Bars
Duplex steel round bars are widely used in:
- Oil & Gas Industry
- Chemical Processing Plants
- Marine Applications
- Heat Exchangers
- Pressure Vessels
- Construction & Infrastructure
Their superior corrosion resistance makes them suitable for extreme environments.
Our stainless steel round bars serve mission-critical applications across multiple industries due to their exceptional strength, corrosion resistance, and reliability in harsh environments:
Common applications include:
- Oil and Gas Industry – Downhole pump shafts, valve stems, instrumentation components, and wellhead equipment
- Chemical Processing Plants – Reactor vessel shafts, agitator components, pump impellers, and corrosion-resistant fasteners
- Marine and Offshore Structures – Propeller shafts, deck equipment, rigging hardware, and saltwater-resistant fittings
- Automotive and Mechanical Engineering – Engine components, transmission shafts, precision machined parts, and suspension elements
- Pump and Valve Manufacturing – Valve stems, pump shafts, piston rods, and high-pressure fittings
- Construction and Structural Frameworks – Architectural supports, railing systems, and load-bearing structural members
- Food Processing Equipment – Mixer shafts, conveyor components, sanitary fittings, and hygienic processing machinery
- Aerospace Components – Landing gear parts, high-strength fasteners, precision machined aircraft components
Why Choose Stellar Alloys for Duplex Steel Round Bars?
- Leading duplex steel round bar manufacturer in India
- Wide range including super duplex round bar and UNS grades
- Competitive pricing and bulk availability
- Strict quality standards and certifications
- Timely delivery across domestic and international markets
Stellar Alloys Steel Pipes and Tubes is a trusted name for high-quality duplex steel bar solutions.
FAQs about Monel Round Bars
It is a stainless steel bar with a mixed microstructure offering high strength and corrosion resistance
Super duplex round bars like 2507 have higher chromium and molybdenum, offering better corrosion resistance.
Common standards include ASTM A276 S31803, ASTM A276 S32750, and ASTM A276 S32760
They are used in marine, oil & gas, and chemical industries.
Yes, Stellar Alloys offers customized sizes and finishes as per client requirements.