ALLOY 20 Fasteners, Hex Bolt, Nut, Stud, Screw, Washer

ALLOY 20 Fasteners, Hex Bolt, Nut, Stud, Screw, Washer



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Alloy 20 Fasteners are austenitic stainless steel fasteners manufactured from alloy containing chromium, nickel, molybdenum and nitrogen with restricted carbon content. Stainless Steel ALLOY 20 Fasteners have a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion. TorqBolt is an eminent Alloy 20 fastener supplier in India.

ASTM B473 Alloy 20 | ASTM B473 Alloy 20

ASME SB473 Alloy 20 | ASME SB473 Alloy 20

DIN 17752 / 17754 | DIN 17752 / 17754

– Finish: Pickling and Passivation

– Compatible Fasteners: Alloy 20 Washers | Alloy 20 Nuts

– Marking: TorqBolt N08020

– 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 OriginIndia
Product OriginMade in India
CertificationDual Certified As per ASTM & ASME Codes
Additional CertificationsPED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Additional RequirementsNACE MR0103/MR0175/ISO 15156 Compliance
Mandatory RequirementsFree from Mercury & Radioactive Contamination

ALLOY 20 Fasteners Specification

Alloy 20 is a nickel chromium alloy with maximum resistance to sulphuric acid. Alloy 20 has good resistance to corrosion , pitting’s and crevice cracking. Addition of Niobium Stabilizes sensitive Intergranular corrosion. This alloy is provided in both solution annealed and stress relieved condition.

ALLOY 20 Fasteners Properties

Chemical Heat Treatment

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TorqBolt is a well known stockist of Pitch Dia Alloy 20 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.

Carpenter Alloy 20CB-3 is a registered trademark of Carpenter Technologies.

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.