Duplex S31803 Round Bars
Duplex S31803 Round Bars Manufacturer, Supplier & Exporter in India
Stellar Alloys Steel Pipe & Tubes is one of the leading manufacturers, suppliers, stockists, and exporters of premium quality Duplex S31803 Round Bars in India. These round bars are manufactured using superior quality raw materials and advanced manufacturing techniques to ensure high strength, excellent corrosion resistance, durability, and long service life.
Duplex Steel UNS S31803 Round Bars are widely used in offshore, marine, petrochemical, oil & gas, chemical processing, pulp & paper, heat exchangers, pressure vessels, and construction industries due to their outstanding mechanical properties and resistance to stress corrosion cracking.
ASTM A276 UNS S31803 Round Bars offer an excellent combination of ferritic and austenitic stainless steel properties, making them suitable for highly corrosive and demanding environments. These bars provide excellent weldability, toughness, and superior resistance against pitting and crevice corrosion.
We supply Duplex 2205 Round Bars in various sizes, thicknesses, specifications, standards, and custom dimensions as per client requirements at competitive prices.
Table of Contents
- Duplex S31803 Round Bars Specification
- Types of Duplex S31803 Round Bars
- Duplex S31803 Round Bars Chemical Composition
- Mechanical Properties of ASTM A276 UNS S31803 Round Bars
- Duplex S31803 Round Bars Price List in India
- Duplex Steel S31803 Round Bars Sizes Available
- Features of Duplex Steel S31803 Round Bars
- Applications of Duplex S31803 Round Bars
- Why Choose Steel Pipe & Tubes?
- FAQs - Duplex S31803 Round Bar
Duplex S31803 Round Bars Specification
Specification | Details |
Grade | Duplex Steel S31803 / 2205 |
UNS Number | UNS S31803 |
Standard | ASTM A276 / ASTM A479 |
Form | Round, Square, Hex, Flat, Forged |
Diameter | 3mm to 800mm |
Length | 1 Meter to 6 Meter |
Finish | Bright, Black, Polished, Hot Rolled, Cold Drawn |
Condition | Annealed, Pickled |
Origin | India |
Delivery | Ready Stock Available |
Types of Duplex S31803 Round Bars
Duplex S31803 Bright Bars
Duplex Steel S31803 Flat Bars
Duplex S31803 Hex Bars
Duplex Steel S31803 Forged Bars
ASTM A276 S31803 Black Bars
UNS S31803 Polished Bars
Duplex Steel 2205 Rods
Duplex S31803 Square Bars
UNS S31803 Polished Bars
Duplex S31803 Round Bars Chemical Composition
Element | Content (%) |
Chromium (Cr) | 21.0 – 23.0 |
Nickel (Ni) | 4.5 – 6.5 |
Molybdenum (Mo) | 2.5 – 3.5 |
Nitrogen (N) | 0.08 – 0.20 |
Carbon (C) | 0.03 Max |
Manganese (Mn) | 2.0 Max |
Silicon (Si) | 1.0 Max |
Phosphorus (P) | 0.03 Max |
Sulfur (S) | 0.02 Max |
Mechanical Properties of ASTM A276 UNS S31803 Round Bars
Property | Value |
Tensile Strength | 620 MPa Min |
Yield Strength | 450 MPa Min |
Elongation | 25% Min |
Hardness | 293 Max HB |
Duplex S31803 Round Bars Price List in India
Size | Price (INR/KG) |
10mm | ₹280 – ₹340 |
20mm | ₹290 – ₹350 |
40mm | ₹300 – ₹360 |
60mm | ₹320 – ₹390 |
100mm | ₹350 – ₹420 |
Note: Prices may vary depending on quantity, size, finish, and market conditions.
Duplex Steel S31803 Round Bars Sizes Available
Diameter | Form |
3mm – 25mm | Bright Bars |
25mm – 80mm | Round Bars |
80mm – 300mm | Forged Bars |
Custom Sizes | Available |
Features of Duplex Steel S31803 Round Bars
- Excellent corrosion resistance
- High tensile strength
- Superior resistance to pitting and crevice corrosion
- Good weldability and machinability
- High durability and toughness
- Excellent stress corrosion cracking resistance
- Suitable for high temperature applications
- Long service life with low maintenance
Applications of Duplex S31803 Round Bars
Duplex Steel S31803 Round Bars are extensively used in:
- Oil & Gas Industry
- Petrochemical Plants
- Chemical Processing Industry
- Marine Applications
- Heat Exchangers
- Pressure Vessels
- Desalination Plants
- Offshore Platforms
- Pulp & Paper Industry
- Power Generation Industry
Why Choose Steel Pipe & Tubes?
- High quality certified materials
- Competitive market prices
- Large ready stock availability
- Fast delivery across India and worldwide
- Third party inspection support
- Customized cutting and finishing services
- Experienced manufacturer and exporter
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
FAQs - Duplex S31803 Round Bar
Duplex S31803 Round Bar is a duplex stainless steel bar offering high strength, excellent corrosion resistance, and superior durability for industrial applications.
ASTM A276 S31803 is the standard specification covering stainless steel bars and shapes manufactured from Duplex Steel UNS S31803 material.
UNS S31803 is the material designation for Duplex Stainless Steel 2205 grade known for high strength and corrosion resistance.
These bars are widely used in offshore, marine, chemical processing, oil & gas, petrochemical, and heat exchanger applications.
Duplex 2205 is the common trade name, while UNS S31803 is the official material designation of the same duplex stainless steel grade.