What is Duplex 31803 Fasteners ?

The Duplex 31803 Fasteners are characterized by austenitic and ferritic nature. The chemical composition of this alloy consists of nickel as well as molybdenum along with chromium. This combination gives the alloy great tensile strength. These fasteners are resistant to corrosion-related corrosion cracking and corrosion pitting.

These Duplex 31803 Fasteners can also withstand chlorine bound environments and are therefore used widely in seawater as well as the off the shore applications. These fasteners also possess the property of being weldable. These fasteners can also withstand various acidic mediums such as hydrochloric acids as well as sulfuric acids. These fasteners also have great mechanical as well as chemical characteristics and can withstand temperature that is elevated.


Werkstoff Nr. 1.4462 U Bolt, ASME SB182 Duplex Steel S31803 Bolt, DIN 1.4462 Threaded Rod, ASTM B182 Duplex S31803 Threaded Rod, Duplex Steel S31803 Heavy Hex Bolt, ASME SB182 Duplex Steel S31803 Stud Bolt, UNS S31803 Fasteners.


Sumit Impex is known to produce excellent quality Duplex 31803 Fasteners. These fasteners could be available in different shapes, sizes and dimensions depending upon the user specifications or the requirements of the applications.

Duplex 31803 Fasteners are highly durable, can be easily fabricated, have great tensile strength, have great resistance towards corrosion, etc. Also, these fasteners undergo a large amount of chemical and mechanical tests in order to be of good quality. Sumit Impex takes into consideration the industrial specifications and standards while producing these fasteners. These fasteners also undergo a series of destructive and non-destructive tests in order to test and improve their quality. Due to all of these reasons, these Duplex 31803 Fasteners are used widely in a large number of industries.

Duplex 31803 Fasteners Specifications

Grade Duplex 31803 Fasteners
Specification ASTM A 193 ASME SA 193
Standard  DIN, ASTM, BS and all International Standards
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length 3 mm to 200 mm
Form Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.
Application Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants.
Duplex S31803 S31803 1.4462
S31803 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 – 3.5 22.0 – 23.0 0.03 4.5 – 6.5 0.14 – 0.2 Bal
S31803 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %
Hexagon Bolt / Set Screws Stud Bolt Hexagon Nuts Socket Cap screws
DIN 931 BS4882 DIN 934 DIN 912
DIN 933 DIN 976 BS 1768 DIN 6912
BS 1768 BS 1769 DIN 7984
UNI 5731 BS 1083 ANSI B18.3
UNI 5739 BS 3692 ISO 4762
ISO 4014 ISO 4032 UNI 5931
ISO 4017 ISO 4033 BS 2470
BS 1769 ANSI B18.2.2 BS 4168
BS 3692
ANSI B18.2.1
Socket & Slotted Set Screws Socket & Slotted Countersunk Screws Studs Washers
DIN 913 DIN 963 DIN 938 DIN 125
DIN 914 DIN 7991 DIN 939 DIN 9021
DIN 915 BS 4168 DIN 2510 BS 4320
DIN 916 BS 1981 BS 4439 BS 3410
DIN 551 BS 483 BS 2693
DIN 553 BS 2470 Spring Washers
DIN 438 DIN 127
BS 4168 BS 4464
BS 1802

Other Products

Duplex S31803 T Bolt Duplex S31803 T Bolt
Duplex S31803 Hex Bolt Duplex S31803 Hex Bolt
Duplex S31803 Lag Bolt Duplex S31803 Lag Bolt
Duplex S31803 Counter sunk Bolt Duplex S31803 Counter sunk Bolt
Duplex S31803 Hex Head Nut Duplex S31803 Hex Head Nut
Alloy F5 Hex Bars Alloy Steel F5 Flat Bars

Duplex 31803 Fasteners Price List

  • S31803 / S32205 Duplex Bolt/Nut
    US $2500-S31803 / S322050 / Ton (FOB Price)
  • Bolt/Nut astm A193 S31803 / S32205
    US $S31803 / S32205-1200 / Ton (FOB Price)
  • Duplex Bolt/Nut S31803 / S32205
    US $500-2000 / Ton (FOB Price)
  • ASTM A193 S31803 / S32205 Duplex Bolt/Nut
    US $850-2200 / Metric Ton (FOB Price)
  • sA193 S31803 / S32205 Bolt/Nut
    US $1.5-9 / Kilogram (FOB Price)
  • S31803 / S32205 Bolt/Nut manufacturer
    US $850-2200 / Metric Ton (FOB Price)
  • ASTM A193 Gr. S31803 / S32205 Bolt/Nut
    US $500-1000 / Ton (FOB Price)


We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel Sheet Manufacturers

Country we serve / City we deliver

ASME SB182 Duplex Steel S31803 Hex Nut Exporter in Argentina, Werkstoff Nr. 1.4462 Threaded Rod Manufacturer in South Africa, Werkstoff Nr. 1.4462 Spring Washer Exporter in Qatar, UNS S31803 Stud Bolt Supplier in Malaysia, Duplex S31803 Bolt Manufacturer in Tanzania, DIN 1.4462 Threaded Rod Stockist in Saudi Arabia, Duplex Steel S31803 U Bolt Manufacturer in Indonesia, DIN 1.4462 Fasteners Supplier in Dubai, Duplex Steel S31803 Fasteners Exporter in UAEn, Duplex S31803 Heavy Hex Bolt Supplier in Nigeria, ASTM B182 Duplex S31803 Hex Bolt Stockist in Brazil, UNS S31803 Plain Washer Stockist in Singapore.

Duplex Steel S31803 Heavy Hex Bolt Manufacturer in Chennai, DIN 1.4462 Hex Bolt Stockist in Ahmedabad, Duplex S31803 Hex Nut Manufacturer in Hyderabad, ASTM B182 Duplex S31803 Spring Washer Stockist in Bangalore, UNS S31803 Plain Washer Supplier in Coimbatore, UNS S31803 Fasteners Supplier in Pune, Werkstoff Nr. 1.4462 Threaded Rod Exporter in Pimpri-Chinchwadn, ASME SB182 Duplex Steel S31803 Bolt Exporter in Jamnagar.

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