Duplex Steel Round Bar Manufacturer, Supplier & Exporter in India

Duplex Steel Round Bars are engineered to deliver exceptional strength and corrosion resistance, making them ideal for various industrial applications. They are primarily composed of stainless steel grades such as 304, 316, and 321, which provide excellent durability under harsh conditions. The unique microstructure of duplex steel combines the best features of both austenitic and ferritic steels, offering higher strength and improved resistance to stress corrosion cracking. Whether you need them for oil and gas, chemical processing, or marine applications, Duplex Steel Round Bars offer unmatched performance.

At RAGNAR METALS & TUBE, we offer Duplex Steel Round Bars in various grades, including S31803 and S32205, which are recognized for their high yield strength and superior resistance to pitting and crevice corrosion. These materials are particularly effective in environments with high chloride exposure, making them suitable for offshore platforms and other challenging applications. Our Duplex Steel Round Bars are meticulously produced to meet the stringent standards required in the industrial manufacturing sector.

In addition to Duplex Steel, our inventory includes Super Duplex Steel grades like S32750 and S32760, which provide even greater resistance to corrosion and strength. These materials are engineered for use in extreme environments, such as chemical processing plants and power generation facilities. The combination of high chromium and molybdenum content in these super duplex steels ensures that they can withstand aggressive media while maintaining structural integrity.

Our Duplex Steel Round Bars also comprise a range of other materials, including Nickel Alloys like Inconel and Hastelloy, which are known for their excellent high-temperature strength and oxidation resistance. These alloys are crucial in industries such as aerospace, petrochemical, and nuclear power. By choosing RAGNAR METALS & TUBE, you can ensure that you are sourcing premium quality materials tailored to your specific industrial requirements.

When it comes to applications, our Duplex Steel Round Bars are widely used in construction, shipbuilding, and manufacturing of pressure vessels. Their superior mechanical properties, including high tensile strength and yield strength, make them an excellent choice for demanding applications. With our commitment to quality and customer satisfaction, RAGNAR METALS & TUBE stands as your trusted partner for all your Duplex Steel Round Bar needs.

Available Grades Table

Duplex Steel Round Bar	Composition	Applications
304	18% Cr, 8% Ni	General-purpose, food industry
304L	18% Cr, 8% Ni (low carbon)	Welded components, chemical industry
316	16% Cr, 10% Ni, 2% Mo	Marine, chemical processing
316L	16% Cr, 10% Ni, 2% Mo (low carbon)	Medical implants, welded structures
310	25% Cr, 20% Ni	High-temperature furnace parts
309	23% Cr, 13% Ni	Heat exchangers, high-temp service
321	18% Cr, 9% Ni, Ti	High-temperature services
347	18% Cr, 10% Ni, Nb	Welded pressure vessels
2205 (Duplex)	22% Cr, 5% Ni, 3% Mo	Oil & gas, marine applications
2507 (Super Duplex)	25% Cr, 7% Ni, 4% Mo	Aggressive chloride environments

Specifications Table

Material	Duplex Steel Round Bar
Grades	304, 304L, 316, 316L, 321, 347, S31803, S32205, S32750, S32760
Standard	ASTM A312 / A213 / A269 / A358
Size Range	1/2" NB to 24" NB (Seamless), 1/2" NB to 100" NB (Welded)
Length	Single Random, Double Random & Custom Cut
Form	Round, Square, Rectangular

Chemical Properties Table

Element	304 (%)	316 (%)
Carbon (C)	0.08 max	0.08 max
Chromium (Cr)	18.0–20.0	16.0–18.0
Nickel (Ni)	8.0–10.5	10.0–14.0
Manganese (Mn)	2.0 max	2.0 max
Silicon (Si)	1.0 max	1.0 max
Phosphorus (P)	0.045 max	0.045 max
Sulfur (S)	0.030 max	0.030 max
Molybdenum (Mo)	—	2.0–3.0

Mechanical Properties Table

Property	304	316
Tensile Strength (MPa)	515 min	515 min
Yield Strength (MPa)	205 min	205 min
Elongation (%)	40 min	40 min
Hardness (HRB)	92 max	95 max

Pipe Testing Methods

Applications & Uses

• Oil & Gas Industry
• Petrochemical Plants
• Water Treatment Plants
• Pharmaceutical Industry
• Food & Beverage Industry
• Automobile Industry

Cities We Supply Duplex Steel Round Bar In India

Duplex Steel Round Bar Supply Cities
Mumbai	Delhi	Pune	Chennai	Hyderabad	Bengaluru
Ahmedabad	Rajkot	Coimbatore	Kolkata	Bhopal	Surat

Countries We Export Duplex Steel Round Bar Worldwide

Duplex Steel Round Bar Export Countries
USA	UK	UAE	Germany	South Africa	Australia
Italy	Canada	Netherlands	Qatar	Saudi Arabia	Malaysia