Duplex Steel Round Bar

Table of Content

Types of Duplex Stainless Steel Round Bars
Duplex Steel Round Bar Specification
Chemical Composition of Duplex Stainless Steel Round Bar
Duplex Stainless Steel Round Bars Mechanical Properties
Duplex Round Bar Equivalent Grade
Physical Properties of Duplex Stainless Steel Round Bar
Duplex Stainless Steel Round Bars Surface Finish
Processing Of Duplex Steel Bars
Duplex Steel Round Bar Sizes

Duplex Steel Rod, SAF 2507 Round Bar, Duplex Steel Industrial Bars, Austenitic Bar, Duplex Steel Bar, Duplex Steel Round Bar, Duplex Steel Rods, Duplex Steel Bars & Rods Manufacturer in Mumbai, India.

Lakshya Steel is a leading supplier of high-quality Duplex Steel Round Bars, offering exceptional products to our valued customers. Duplex Stainless Steel Round Bars feature a superior chemical composition of high chromium, nitrogen, and molybdenum, providing them with numerous beneficial properties.We produce these round bars in different specifications, including various standards, sizes, lengths, dimensions, finishes, types, ends, and forms. We also offer custom-made specifications tailored to meet our customers’ specific needs. Our Duplex Steel Bars are known for their high yield and tensile strength, making them suitable for use in harsh environments. They demonstrate excellent fatigue strength and offer outstanding resistance to crevice, general, pitting, and stress corrosion cracking.Manufactured using top-quality raw materials and advanced machinery.

Our Duplex Stainless Steel Round Bars are praised for their seamless finish, strong construction, and abrasion resistance. These bars are widely used in industries such as petrochemical, chemical, oil & gas, pulp & paper, power plants, and food processing.Duplex Steel Round Bars are well-known for their exceptional resistance to general corrosion and heat. This type of steel combines the properties of both austenitic and ferritic stainless steels, offering a unique blend of strength and toughness.

Duplex Stainless Steel 2205/1803 Bar was developed to overcome the limitations of both austenitic and ferritic stainless steels available in the market. While both types have their weaknesses—ferritic steels have poor low-temperature toughness, and austenitic steels are particularly vulnerable to stress corrosion cracking—Duplex 2205/1803 offers a balanced solution, combining the strengths of both to deliver superior performance.

Explore our wide range of Duplex steel products.

Types of Duplex Stainless Steel Round Bars

Duplex Steel UNS S31803 Round Bars

Duplex Steel UNS S2205 Round Bars

Duplex Steel Round Bar Specification

Specifications	ASTM A276, A479 / ASME SA276, SA479
Grade	Duplex 2205 – UNS S32205/uns S31803
Technique	Cold Drawn, Hot Rolled, Forged Round Bar, Rod, Cold Rolled
Tolerance	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Standard	AISI, API, ASTM, EN, ASME, BS Round Bars
Finish	Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Section	3.0 to 12.0mm thickness
Form	Precision Ground Bar, Flat Bar, Square, Round, Half Round Bar, Rod, Rectangle, Hex (A/F), T-Bar, Channel Bar,Blocks, Round Rod, Threaded, Profiles, Billet, Ingot, I/H Bar, Forging, Rings, Hollow, Triangle etc.
Surface	Cold Drawn, Bright, Sand Blasting Finished, Hot Rolled Pickled, Hairline, Polished
Processing	Bar cutting to 650mm
Certificates	EN 10204 / 3.1
Round bar size	Diameter: 3-~800mm
Flat bar size	Thickness: 2 -100mm
Flat bar size	Width: 10 to 500mm
Hex Bar size	2-100mm A/F
Square bar size	4 to 100mm
Angle bar size	3mm20mm20mm~12mm100mm100mm
Billet Size	1/2″ to 495mm Diameter
Channel Bar	80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Hollow Bar	32mm OD x 16mm ID to 250mm OD x 200mm ID)
Rectangles Size	33 x 30mm to 295 x 1066mm
Condition	Hardened & tempered, annealed

Chemical Composition of Duplex Stainless Steel Round Bar

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
S32750	0.030 max	1.20 max	0.80 max	0.035 max	0.020 max	24.00 – 26.00	3.00 – 5.00	6.00 – 8.00	0.24 – 0.32	58.095 min
S32760	0.05 max	1.00 max	1.00 max	0.030 max	0.010 max	24.00 – 26.00	3.00 – 4.00	6.00 – 8.00	0.20 – 0.30	57.61 min

Duplex Stainless Steel Round Bars Mechanical Properties

Grade	YS (MPa)	UTS (MPa)	% Elongation	Hardness(BHN)
31803	450 min.	620 min.	25 min.	293 max.
2205	450 min.	655 min.	25 min.	293 max.

Duplex Round Bar Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS
Duplex 1803	1.4462	S318032
Duplex 2205	1.4462	S32205

Physical Properties of Duplex Stainless Steel Round Bar

Density (Kg / M3)	Modulus of Elasticity (GPa)	Poisson’s Ratio	Thermal Conductivity (W/moC)	Thermal Capacity (I/KgoC)	Electrical Resistivity
Density (Kg / M3)7800	Modulus of Elasticity (GPa)200	Poisson’s Ratio0.3	Thermal Conductivity (W/moC)15	Thermal Capacity (I/KgoC)500	Electrical Resistivity0.8

Duplex Stainless Steel Round Bars Surface Finish

Plate Surface finish	Gauge (in)	Width (max in)
Plate Surface finish2B – Cold rolled, heat treated, pickled, skin passed Plate	Gauge (in)10–24	Width (max in)72*
Plate Surface finish2D – Cold rolled, heat treated, pickled plate	Gauge (in)12–24	Width (max in)60
Plate Surface finishBA Mexinox only	Gauge (in)18–28	Width (max in)48
Plate Surface finishPolished plate (not brushed)	Gauge (in)11–24	Width (max in)60
Plate Surface finishTemper rolled plate Mexinox only	Gauge (in)13–29	Width (max in)48

Processing Of Duplex Steel Bars

Round bar Cutting	Products cut include Round bars, Flat bars, Hex bars, Square bars, Tubing and Hollow bars, Pipe, Angles, channels, Beams and Tees. Thickness range is 1/16″ to 28″ diameter
Round bar Production Cutting	We can provide production cutting for product diameters up to 4″. We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances.
Round bar Polishing	Products polished included all tubular products, with OD & ID polishing available, Round bars, Square bars, Hex & Flat bars, Angles, Uneven Leg Angles, beams, and other shapes.

Duplex Steel Round Bar Sizes

Type	SIZES (mm)	SIZES (Inches)	ISO Tolerance
Cold Drawn and Ground	10.00 – 75.00	5/6″ – 2.50″	h8-h9-h10-h11
Peeled and Polished	40.00 – 150.00	1.50″ – 6.00″	h11, h11-DIN 1013
Peeled and Ground	20.00 – 50.00	3/4″ – 2.00″	h9-h10-h11
Cold Drawn and Polish	3.00 – 75.00	1/8″ – 3.00″	h8-h9-h10-h11

410 Stainless Steel Fasteners Types

FAQs

How are Duplex Stainless Steel Round Bars manufactured?

Duplex stainless steel round bars are produced by melting iron ore, chromium, and nickel, then casting the molten metal into billets. These billets are hot-rolled into rods, annealed to reduce stress, and cut to length, resulting in bars with high strength, corrosion resistance, and durability.

Which duplex steel grades are typically used for round bars?

Duplex 2205 and Super Duplex 2507 are commonly used grades for round bars, known for their high strength and superior corrosion resistance.

Which standards apply to Duplex Stainless Steel Round Bars?

Duplex Stainless Steel Round Bars typically follow standards such as ASTM A276, ASTM A790, and UNS S31803 or UNS S32750, ensuring quality and performance.

What are the common sizes for duplex steel round bars?

Duplex steel round bars are typically available in diameters ranging from 6 mm to over 300 mm and lengths from 3 meters to 6 meters, with custom sizes also offered.

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Taiwan, Mexico, Iran, Namibia, Afghanistan, Netherlands, Nepal, Ireland, Libya, Morocco, Iran, Switzerland, Finland, Slovakia, Pakistan, Australia, Serbia, Angola, China, Philippines, Czech Republic, Belgium, Estonia, Costa Rica, Croatia, Sweden, Venezuela, Colombia, India, Belarus, Jordan, Azerbaijan, Mongolia, Vietnam, Ghana, Iraq, Algeria, Puerto Rico, New Zealand, Singapore, Indonesia, Ukraine, Israel, Mexico, Hong Kong, Bhutan, Germany, Brazil, Plan, Yemen, Malasiya, USA, Cambodia, Laos, Uganda, Tanzania, Sudan, Democratic Republic of Congo, zambia, Ethiopia, Brunei, Madagascar, Niger, Mali, Bangladesh, Bolivia, United States, Ecuador, Lebanon, Italy, South Korea, Denmark, Norway, Sri Lanka, Zimbabwe, Japan, Yemen, Oman, Portugal, Lithuania, Canada, Macau, Bahrain, Austria, Bulgaria, Spain, Kenya, United Kingdom, United Arab Emirates, Kazakhstan, Egypt, Saudi Arabia, Gambia, Argentina, Romania, Tibet, France, Chile, Gabon, South Africa, Trinidad & Tobago,Tunisia, Turkey, Nigeria, Peru, Russia, Chile, Nigeria, Hungary, Qatar, Greece, Malaysia, Kuwait, Poland, Thailand, Poland.

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