Buy High Quality Duplex Steel Round Bar From Siddhgiri Tubes

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Siddhgiri Tubes is a well-known Duplex Steel Round Bar Manufacturer, Supplier, and Exporter. As a premier manufacturer and supplier of duplex steel round bars, we offer superior steel bar that complies with many international standards.

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We are a top Duplex Steel Round Bar Manufacturer, Supplier & Exporter in India. We provide high-quality Duplex Steel Round Bars to a variety of industries worldwide. Our proficiency in heat treatment places us in a favored position for manufacturing and exporting Round Bars with a close-by and specific chemistry and for achieving the necessary mechanical qualities. Our ASTM B166 Round Bars are available in a variety of types, including hot-rolled, annealed, and pickled, and range in thickness from 15 to 400 mm.

Duplex Steel Round Bar Specification, Grades

Specifications ASTM B166 / ASTM SB166
Dimensions EN, DIN, JIS, ASTM, BS, ASME, AISI
Size
5 mm To 500 mm
Diameter 0.1 mm to 100 mm
Length 100 mm To 3000 mm Long & Above
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

Duplex Steel Round Bar Heat Tolerance

Duplex steel round bars have excellent heat tolerance due to their unique composition and microstructure. They are designed to exhibit a combination of high strength and corrosion resistance even at elevated temperatures. However, the specific heat tolerance of duplex steel round bars can vary depending on the grade and the intended application.

Temperature Resistance

Duplex steel round bars have excellent temperature resistance.

They can withstand moderately high temperatures without significant loss of mechanical properties.

Oxidation Resistance

Duplex steel round bars exhibit good oxidation resistance, allowing them to resist the formation of scales and maintain their corrosion resistance even in high-temperature environments.

Thermal Stability

Duplex steel round bars have good thermal stability, enabling them to maintain their structural integrity and mechanical properties over a wide temperature range.

Phase Transformation

Duplex steels undergo a phase transformation at elevated temperatures, typically around 950°C (1740°F).

This transformation can affect the material's mechanical properties, so it's important to consider the specific alloy grade and its heat treatment requirements for optimal performance at high temperatures.

Manufacturing Processes of Round Bars

The manufacturing process of round bars depends on the material from which they are made. Here are some of the common manufacturing processes used to make round bars.

Hot Rolled Round Bars: Hot rolling is a process used to produce round bars from large billets or blooms. The metal is heated to a high temperature and then passed through a series of rollers to reduce its diameter. Hot rolled round bars have a rough, scaly surface and are not as precise as cold drawn or turned bars.

Cold Drawn Round Bars: Cold drawing is a process used to produce round bars from hot rolled bars or wire rods. The metal is drawn through a die to reduce its diameter and increase its length. Cold drawn round bars have a smooth surface and tight dimensional tolerances.

Turned Round Bars: Turning is a process used to produce round bars from hot rolled bars or billets. The metal is rotated on a lathe and a cutting tool removes material to produce the desired diameter and surface finish. Turned round bars have a smooth surface and precise dimensional tolerances.

Steel Round Bar Weight & Size Chart Table in kg, mm

Size (mm) Weight (kg/m) Size (mm) Weight (kg/m) Size (mm) Weight (kg/m)
7 x 7 0.337 19 x 19 2.479 38 x 38 9.916
8 x 8 0.44 20 x 20 2.747 40 x 40 10.988
9 x 9 0.556 21 x 21 3.029 42 x 42 12.114
10 x 10 0.687 22 x 22 3.324 45 x 45 13.906
11 x 11 0.831 24 x 24 3.956 48 x 48 15.822
12 x 12 0.989 25 x 25 4.292 50 x 50 17.168
13 x 13 1.161 26 x 26 4.642 53 x 53 19.29
14 x 14 1.346 28 x 28 5.384 55 x 55 20.774
15 x 15 1.545 30 x 30 6.181 60 x 60 24.723
16 x 16 1.758 32 x 32 7.032 65 x 65 29.015
17 x 17 1.985 34 x 34 7.939 70 x 70 33.65
18 x 18 2.225 36 x 36 8.9 75 x 75 38.629

Duplex Steel Round Bar Chemical Composition Chart

Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min

Duplex Steel Round Bar Mechanical Properties Chart

Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 / S32205 7.805 0.285 1420 – 1465 2588 – 2669

Indian Cities we supply our high-quality Duplex Steel Round Bar

Indian Cities we supply Duplex Steel Round Bar
Bangalore Mumbai Chennai Hyderabad Kolkata Pune
New Delhi Ahmedabad Jaipur Surat Salem Gandhinagar
Bhiwandi Tiruppur Sivakasi Jamnagar Thiruvananthapura Rajahmundry
Bhubaneswar Vijaywada Firozabad Bokaro Steel City Rajkot Bharuch
Panna Raipur Cochin Ludhiana Panipat Durgapur
Peenya Pimpri-Chinchwad Channapatna Kharagpur Nashik Bareilly
Varanasi Haldia Rourkela Bengaluru Moradabad Indore
Visakhapatnam Trivandrum Pithampur Dibrugarh Angul Gwalior
Coimbatore Kannur Nagpur Vadodara Rudrapur Noida
Agra Bhagalpur Jamshedpur Bhilai Lucknow kanpur
Thane Bhopal Sri City Bareilly Hosdurg Pithampur

Countries We our high-quality Duplex Steel Round Bar

Countries We Export Duplex Steel Round Bar
Argentina USA Saudi Arabia Nigeria Russia India Syria Hungary
Bolivia Canada Iran Algeria Norway Singapore Jordan Albania
Brazil Mexico Iraq Angola Germany Malaysia Cyprus Austria
Chile Panama UAE South Africa France Indonesia Greece Switzerland
Venezuela Costa Rica Qatar Libya Italy Thailand Czech Republic Slovakia
Colombia Puerto Rica Bahrain Egypt UK Vietnam Portugal Finland
Ecuador Trinidad And Tobago Oman Sudan Spain South Korea Bangladesh Ireland
Guyana Jamaica Kuwait Equatorial Guinea Ukraine Japan Mayanmar Croatia
Paraguay Bahamas Turkey The Republic Of Congo Netherlands Sri Lanka Taiwan Slovenia
Uruguay Denmark Yemen Gabon Belgium Maldives Cambodia Malta
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+91 977 34 7 0471

+91 97734 70471

Email address

sales@siddhgiriindia.com

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Shop No, 85, Durgadevi St, Kumbharwada, Mumbai - 400004