Duplex S31803 Fasteners, A182 F51, Hex Bolt, Nut, Stud, Screw, Washer

Duplex S31803 Fasteners, A182 F51, Hex Bolt, Nut, Stud, Screw, Washer



Write A Review | Questions & Answers

Duplex S31803 Fasteners are dual phase austenitic-ferritic duplex fasteners manufactured from alloy containing chromium, nickel and molybdenum with restricted carbon content and minimum PREN 35. Alloy 31803 Fasteners have excellent corrosion resistance and high strength. TorqBolt is an eminent Duplex S31803 fastener supplier in India.

ASTM A182 / A479 F51 | ASTM A182 / A479 F51

ASME SA182 / SA479 F51 | ASME SA182 / SA479 F51

EN 3506-1 E1 | EN3506-2 E1

– Finish: Pickling and Passivation

– Compatible Fasteners: Duplex Alloy 31803 Washers | Duplex 31803 Nuts

– Marking: TorqBolt S31803

– Type: Cold Forged, Hot Forged, Bar Stock Machined


Product Features

DimensionsDIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
ThreadsUnless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically at the option of TorqBolt
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Melt Origin India
Product Origin Made in India
Certification Dual Certified As per ASTM & ASME Codes
Additional Certifications PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Additional Requirements NACE MR0103/MR0175/ISO 15156 Compliance
Mandatory Requirements Free from Mercury & Radioactive Contamination

Duplex S31803 Fasteners Specification

31803 Duplex Fasteners Properties

Chemical Mechanical Heat Treatment


There are no reviews yet.

Add a Review

Be the first to review “Duplex S31803 Fasteners, A182 F51, Hex Bolt, Nut, Stud, Screw, Washer”

Questions and answers of the customers

There are no questions yet, be the first to ask something for this product.

Send me a notification for each new answer.


TorqBolt is a well known stockist of Pitch Dia Duplex S31803 Round Bars from ¼ Inch to 4 inch & 6mm to 100mm in 1 meter, 3 meter & 6 Meter lengths. All Threaded Bars are Magnetic Particle Examined in accordance with ASTM E 709 with Indications & Cracks within 3% of The Diameter.

Colduplex is a registered trademark of Columbia Metals.

Raw Material Specifications: ASTM A276, A182, A240, A493, B98, B564, B637, B473, and A582 are noted for information only by American Society of Mechanical Engineers and American Society of testing and materials as suitable sources of material for the manufacture of bolts, hex cap screws, studs and washers, springs, forgings and flanges to the respective specification.