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ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
Specifications
Model Number :
Stud Bolts, Nuts, Washers
Studs/Bolts :
ASME B18.2.1
MOQ :
1 set
Delivery Time :
7 days
Thread Standards :
ASME B1.1
Payment Terms :
T/T
Price :
Negotiate
Special Requirements :
NACE MR0175 / ISO 15156
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Heavy Hex Nuts :
ASME B18.2.2
Supply Ability :
50000 Tons Per Year
Brand Name :
YUHONG
Material Standard :
ASTM A479 / ASME SA479
Place of Origin :
China
Washers :
ASME B18.22.1
Packaging Details :
Export Standard - Plastic Bags + Cartons + Plywood Pallets / Ply wooden case
Description
ASTM A479/A479M Duplex, Super Duplex Steel Stud Bolts, Nuts, Washers UNS S31803, S32750 Fasteners
Product Overview

We supply high-quality Duplex and Super Duplex stainless steel fasteners manufactured in compliance with American (ANSI/ASME) standards, including stud bolts, heavy hex nuts, and washers. All products are manufactured from premium raw materials certified to ASTM A479 / ASME SA479 specifications, delivering exceptional mechanical properties and superior corrosion resistance for demanding industrial applications

Material Grades Available

Duplex S31803 (UNS S31803 / 2205) - 22% Cr, 5% Ni, 3% Mo - Offers approximately twice the yield strength of standard austenitic stainless steels (316/304), with excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. PREN value > 34.

Super Duplex S32750 (UNS S32750 / 2507) - 25% Cr, 7% Ni, 4% Mo - Premium grade with higher chromium and molybdenum content, providing superior strength and corrosion resistance for the most aggressive environments. Minimum tensile strength: 116 ksi [800 MPa], minimum yield strength: 80 ksi [550 MPa]. PREN value > 40

Product Range
  • Stud Bolts: Full-threaded and double-end studs (ASME B18.2.1), available in various diameters and lengths
  • Heavy Hex Nuts: ASME B18.2.2 heavy hex nuts, standard and jam nuts
  • Washers: ASME B18.22.1 flat washers, plain finish
  • Other types: Threaded rods, socket head cap screws, anchor bolts available upon request
Thread Options
  • Unified Coarse (UNC)
  • Unified Fine (UNF)
  • 8UN Series (for high strength bolting applications)
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
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ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners

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Product Detail
Model Number :
Stud Bolts, Nuts, Washers
Studs/Bolts :
ASME B18.2.1
MOQ :
1 set
Delivery Time :
7 days
Thread Standards :
ASME B1.1
Payment Terms :
T/T
Contact Supplier
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners
ASTM A479/A479M Duplex Super Duplex Steel Stud Bolts Nuts Washers UNS S31803 S32750 Fasteners

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
2 Years
ningbo
Since 1990
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
TEMA Heat Exchanger, Air Cooled Heat Exchanger, Fired Heater
Total Annual :
50M-75M
Employee Number :
50~850
Certification Level :
Verified Supplier
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