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Material Specification

AISI 304

AISI 304 Fasteners
Standard 18/8 Austenitic Stainless Steel (A2-70 / A2-80)

Austenitic Stainless Steel AISI 304 Fasteners

Buy AISI 304 bolts, nuts, and studs from Exotic Alloy, conforming to ASTM A193 B8, ASTM A276, and ISO 3506 A2-70/80.

Exotic Alloy fasteners offer AISI 304 bolts, nuts, and studs with standard and custom manufacturing to your exact project specifications. We cover AISI 304 hex bolts, heavy hex bolts, studs, stud bolts, hex nuts, washers, threaded rod, and custom drawing fasteners in metric (M3 to M120) and inch sizes (1/4" to 5") with coarse, fine, and extra-fine threads to ASME, ISO, and DIN standards.

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AISI 304 Bolting Products

AISI 304 Specifications & Standards

  • ASTM A193 / A194
  • ASTM A276 / A479
  • UNS S30400
  • ASTM F593 / F594
  • DIN EN ISO 10088-3 (1.4301 / X5CrNi18-10)
  • ISO 3506-1 / 3506-2
  • BS 970 / BS EN 10088
  • JIS G4303
AISI 304 Material Datasheet

AISI 304 Properties

Chemical Composition (AISI 304)
Elements C Mn P S Si Cr Ni N Fe
Min % - - - - - 18.00 8.00 - Balance
Max % 0.08 2.00 0.045 0.030 1.00 20.00 10.50 0.10 Balance
Mechanical Properties (AISI 304)
Condition / Heat Treatment Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness
Annealed (Soft) 550 - 650 220 - 290 40 - 55 % 150 - 180 HB / 80 - 88 HRB
Cold Drawn (Class 70) 700 450 25 % 190 - 220 HB / 90 - 95 HRB
Cold Drawn (Class 80) 800 600 15 - 20 % 240 - 280 HB / 22 - 29 HRC

AISI 304 Characteristics

  • Proven metallurgical corrosion resistance across chemical, atmospheric, and marine media
  • Superior ductility and high toughness from cryogenic depths (-196°C) to elevated temperatures
  • Standard austenitic Face-Centered Cubic (FCC) lattice ensuring non-magnetic characteristics
  • Excellent weldability and compatibility with standard industrial TIG/MIG welding techniques
  • Comprehensive compliance with global ASTM, ASME, DIN, ISO, and BS bolting specifications

AISI 304 Applications

  • High-integrity industrial bolting (hex bolts, heavy hex nuts, stud bolts, tie rods)
  • Chemical and petrochemical process piping, pressure vessels, and heat exchanger flanges
  • Food, beverage, brewery, and dairy processing sanitary machinery and conveyor systems
  • Architectural structural facades, marine railings, coastal cladding, and glass wall spider bolts
  • Cryogenic storage tanks, LNG transport valves, and pharmaceutical cleanroom equipment