Sumit Impex is a prominent manufacturer and supplier of Duplex and Super Duplex Bolts. We focus on quality and reliability and specialize in delivering high-grade bolts tailored for demanding applications. Count on us for top-notch solutions in fastening technology.

Sumit Impex is a Supplier of Duplex Steel Bolts, Biggest Stockist of Super Duplex Bolts as per Standards in Mumbai, India.

DSS Hex Bolts, Super Duplex Allen Cap Bolt, Super Duplex Steel Hex Head Bolts, Duplex Steel Heavy Hex Bolts in Best Price, SDSS Head Bolts, Duplex Steel Carriage Bolts, Duplex Steel Bolts Manufacturer.

Duplex and super duplex bolts offer exceptional corrosion resistance due to their dual-phase microstructure. They find extensive applications in offshore oil and gas, marine, chemical processing, and desalination plants. Their superior strength and resistance to pitting, crevice corrosion, and stress corrosion cracking make them ideal for demanding environments where corrosion is a concern.

Sumit Impex ensures the high quality of its duplex and super duplex bolts through rigorous testing. We conduct Intergranular Corrosion (IGC) Testing for corrosion resistance, Hardness Testing for durability, and Spectro Analysis for precise chemical composition. Additionally, Positive Material Identification (PMI) Testing verifies material authenticity. Our commitment to quality guarantees reliable products for various applications.

Duplex / Super Duplex Bolts

Standard Specification For Duplex & Super Duplex Steel Bolts

Specifications ASTM A479, A182 / ASME SA479, SA182
Standard DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
Size M3 – M100 | 3/6″ – 4″ | Custom Sizes
Length 3 mm – 200 mm | Custom Sizes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads available UNF, BSW, BSF, METRIC, UNC, or as required
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Form Hex, Threading, Square, Round as per Gauge Etc.
Head Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
Neck type Hex, Square, Triangular, Oval & Knurled etc.
Surface Coating Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing Process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Duplex & Super Duplex Steel Bolts Types

Hex Bolt

Hex Bolt

Heavy Hex Bolt

Heavy Hex Bolt

Anchor Bolt

Anchor Bolt

Eye Bolt

Eye Bolt

Machine Bolt

Machine Bolt

J Bolt

J Bolt

U Bolt

U Bolt

Square Bolt

Square Bolt

Contact Us For Quatation & Questions Related To Duplex Stainless Steel Bolts

Duplex & Super Duplex Steel Bolts Applications

Export & Supply Destinations Of Duplex & Super Duplex Steel Bolts

Singapore, Oman, Myanmar, Russia, Afghanistan, Armenia, Macau, Turkey, China, Mongolia, United Arab Emirates, Kuwait, North Korea, Nepal, Maldives, Bahrain, India, South Korea, Bangladesh, Lebanon, Taiwan, Vietnam, Hong Kong, Egypt, Philippines, Qatar, British, Kyrgyzstan, Bhutan, Jordan, Azerbaijan, Iraq, Sri Lanka, Saudi Arabia, Israel, Iran, Thailand, Malaysia, Indonesia, Japan.

Luxembourg, Denmark, Moldova, Romania, Austria, Portugal, Finland, Bulgaria, Lithuania, Ireland, Croatia, France, Belgium, Russia, Germany, Azerbaijan, Italy, Hungary, Monaco, Serbia, Poland, Liechtenstein, Switzerland, Estonia, Belarus, Spain, Norway, Czechia/Czech Republic, Greece, Slovakia, Latvia, Cyprus, Sweden, Turkey, Malta, United Kingdom, Ukraine, Netherlands.

Seychelles, Tunisia, Tanzania, Burundi, Namibia, Burkina Faso, Cameroon, Mozambique, Zambia, Senegal, Kenya, Gambia, Niger, Morocco, Zimbabwe, Nigeria, Central African Republic, Liberia, Rwanda, Libya, Madagascar, South Africa, Mauritania, Uganda, Egypt, Botswana, Ethiopia, Mauritius, Angola, Eswatini, Algeria.

Nicaragua, Saint Vincent and the Grenadines, Barbados, Trinidad and Tobago, Bahamas, Mexico, Costa Rica, Belize, United States of America, Panama, Haiti, Antigua and Barbuda, Cuba, Honduras, El Salvador, Dominican Republic, Dominica, Canada, Jamaica, Saint Lucia, Guatemala, Grenada.

Guyana, Bolivia, Suriname, Colombia, Venezuela, Ecuador, Peru, Uruguay, Brazil, Paraguay, Argentina, Chile.