Duplex Steel S31803 Fasteners are crafted from a duplex stainless steel alloy that combines excellent corrosion resistance with high mechanical strength. Caliper Overseas is a trusted Duplex Steel S31803 Fasteners manufacturer and supplier in India, offering high-quality fasteners designed for superior strength and durability. Our fasteners are used across various industries, especially in environments exposed to chloride and marine atmospheres. We manufacture it in compliance with international standards such as DIN, ASTM and BS.

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Our fasteners exhibit remarkable properties, including a tensile strength of 650–880 MPa, a yield strength of 448 MPa, and an elongation of 25%.With a hardness level of Rockwell C (HRC), it possesses fine wear resistance as well as toughness. Duplex S31803 fasteners also have resistance against stress corrosion cracking and are of long service. For strong, durable fastening solutions, feel free to call us today for your specific requirements.

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Duplex Steel S31803 Washers

Duplex S31803 Fasteners Supplier In Mumbai, Duplex S31803 Fasteners Supplier In India

Duplex Steel S31803 Fasteners Specification

Standard ASTM A479 / ASME SA479
Bolt / Screw Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size M1.6 – M12
Self Tapping Screw Size No.2 – No. 14
Length 3 mm to 200 mm
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
  • DIN : DIN 934, DIN 931, DIN 970, DIN 933
  • UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
  • ISO : JIS standards, ISO 4033, ISO 4032,
  • ANSI – American National Standards Institute
  • ASME B18.5
  • ANSI B 28.2.4 1M
  • as per defined in ASME B16.5 standard Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 Hex nuts
Form Hex, Threading, Square, Round as per Gauge Etc.
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification Dual Certified As per ASTM & ASME Codes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production Process M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC
Types Bolts, Nuts, Stud Bolts, Washers, Threaded Rod, Anchor Fasteners, Eye Bolt, Stud, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts etc.

Equivalent Grades Of Duplex Steel S31803 Fasteners

STANDARD WERKSTOFF NR. UNS
Duplex S31803 1.4462 S31803

Chemical Composition Of Duplex Steel S31803 Fasteners

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

Duplex Steel S31803 Fasteners Mechanical Properties

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

Duplex Steel S31803 Fasteners Stock Availability

Duplex Steel Bolts

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Duplex Steel Nuts

Duplex Steel S31803 Nuts

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Duplex Steel Washers

Duplex Steel S31803 Washers

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Duplex Steel S31803 Fasteners Applications and Uses

  • Distillery Plants
  • Sugar Industries
  • Process Industries
  • Power Plants
  • Refineries
  • Petrochemical Plants
Distillery Plants

Duplex Steel S31803 Fasteners in Distillery Plants

Sugar Industries

Duplex Steel S31803 Fasteners in Sugar Industries

Process Industries

Duplex Steel S31803 Fasteners in Process Industries

Power Plants

Duplex Steel S31803 Fasteners in Power Plants

Refineries

Duplex Steel S31803 Fasteners in Refineries

Petrochemical Plants

Duplex Steel S31803 Fasteners in Petrochemical Plants

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