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Super Duplex Steel Circle

Khush Sheets and Plates stands out as a top manufacturer and supplier of Super Duplex Steel Circles, proudly based in Delhi, India. Our high-quality circles are crafted from top-notch Super Duplex stainless steel, celebrated for its remarkable resistance to corrosion and impressive mechanical strength. Adhering to international standards like ASTM A182 and UNS S32750, these circles guarantee precise dimensions and a flawless surface finish. We cater to essential industries such as oil & gas, chemical processing, marine, and desalination, providing robust and dependable Super Duplex steel circles designed to thrive in harsh, corrosive environments while ensuring long-lasting performance and structural integrity.

Super Duplex Steel Circle

ASTM A240 Super Duplex Circle

Super Duplex Steel HR Circle

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Table of Contents

Super Duplex Steel Circles feature a well-balanced microstructure, consisting of about 25% chromium, 7% nickel, 3% molybdenum, along with added nitrogen. This distinctive composition offers exceptional resistance to pitting, crevice, and stress corrosion cracking, while also delivering impressive mechanical properties. The typical tensile strength surpasses 800 MPa, with yield strength exceeding 550 MPa and elongation around 25%. The dual-phase ferritic-austenitic structure ensures high toughness, weldability, and durability, making these circles perfect for demanding pressure vessel and structural applications. At Khush Sheets and Plates, we make sure all circles undergo rigorous quality checks for corrosion resistance and dimensional accuracy.

Super Duplex Steel Circle Specification

SpecificationsASTM A240 / ASME SA240
DimensionsEN, DIN, JIS, ASTM, BS, ASME, AISI
Thickness1 mm To 100 mm
DiameterUpto 2000 mm
Circle3″ DIA up to 38″ DIA 1500 lbs max
Rings3″ OD up to 48″ OD Up to 900 lbs max
CuttingPlazma & Machined Cut
FinishHR, CR, 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
FormCold Rolled Circle, Small Flat Circle, Industrial Circle, Perforated Circle, Forged Steel Circles, Cnc Finish Circle, Polished Unique Circle, Hot Rolled Circle, Fey Laminar Rings, Proof Machined Rings, Cold Rolled Rings, Hot Rolled Rings, McInnes Rolled Rings, Die-Formed Rings, Forging Rings, CNC Machined Rings.

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If You Are Looking To Buy High Quality Piping Products ?

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Largest Super Duplex Steel Circle Manufacturer and Exporter in Kolkata, India

Khush Sheets and Plates based in Kolkata, India, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes  Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.

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Super Duplex Steel Circles find extensive application in creating flanges, valve components, pressure vessels, pump parts, and heat exchangers, where mechanical strength and corrosion resistance are paramount. Khush Sheets and Plates supplies these circles to industries like offshore platforms, chemical processing plants, marine environments, and desalination facilities. Their exceptional resistance to chloride stress corrosion cracking and pitting corrosion makes them the ideal choice for challenging environments.

Types of Super Duplex Steel Circle

Super Duplex Forged Circles
Super Duplex Steel Plazma Cut Circle
Super Duplex Steel Die-Formed Circles
Super Duplex Proof Machined Circles
SDSS Cold Rolled Circle
Super Duplex Circle

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Are Custom Sizes Available for Super Duplex Steel Circle?

Yes, we offer custom sizes for Super Duplex Steel Circle to meet specific project needs. Our team at Khush Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at  sales@khushsheetsandplates.co.in

Thickness Chart Of Super Duplex Steel Circle

Size18 G.19 G.20 G.22 G.24 G.26 G.
.4.5.0-1070-0850-0800-0620.0490-040
50-1200-0950-0900-0700-0550-045
5.50-1460-1190-1090-0850-0660-054
60-1720-1360-1300-1000-0790-064
6.50-2000-1530-1500-1280-0930-074
70-2350-1900-1760-1360-1070-088
7.50.2700.2120.2010-1570-1230-100
80-3070-2400-2300-1800-1400-115
8.50-3470-2700-2620-2020-1560-130
90-3880-3300-3010-2300-1780-145
9.50-4720-3420-3240-2520-1980-162
100-4800-3800-3600-2800-2200-180
110-5800-4500-4350-3380-2660-218
120-6900-5400-5180-4030-3180-253
130-8110-6400-5080-6080-3710-304
140-9400-7500-7080-5580-4300-352
151-0800-8600-8080-6500-4950-405
161-2280-9600-9210-7360-5630-460
171-3821-0800-9400-8090-6350-560
181-5951-2001-1160-9070-7120-683
191-7321-3501-3001-0100-7940-750
201-9201-4001-3401-1200-8800-785

Super Duplex Steel Circle Technical Standards

RAW MATERIALMAX. HARDNESSTEMPERATUREABBREVIATIONSMARKER
BRUCELLOSISROCKWELL
SOFT IRON9056-60 540D
LOW CB STEEL12068-40 540S
304SS16083-250 700b304
304LSS15083-250 450304L
316SS16083-200 700b316
316LSS15083-200 450316L
321SS16083-200 700b321
347SS16083-200 700b347
410SS17086-40 650410
5Cr-0.5Mo130 -29 650 
COPPER80 -100 315 
ALUMINUM35 -200 425 
INCONEL 600150 -100 1095 
INCOLOY 825160 -100 1095 
MONEL 400150 -100 760 
TITANIUM215 -200 540 
NICHEL 200110 -200 760 
HASTELLOY C276200 -100 1095

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Application Industry of Super Duplex Steel Circle

Super Duplex Steel Circles are widely used in industries requiring robust and corrosion-resistant materials. In the marine sector, they are employed in shipbuilding, offshore platforms, and subsea equipment due to their resistance to seawater corrosion. In the oil and gas industry, they are utilized for pipelines, heat exchangers, and pressure vessels. Their strength and durability make them suitable for chemical processing equipment and desalination plants. Additionally, they are used in structural components, power generation, and pulp and paper industries, offering reliable performance in demanding and corrosive environments.

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