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Material Specification

AISI 430

AISI 430 Fasteners
Standard General-Purpose 17% Chromium Stainless Steel

Ferritic Stainless Steel AISI 430 Fasteners

Buy AISI 430 bolts, nuts, studs, and architectural fasteners from Exotic Alloy, conforming to ASTM A276, ASTM A493, and DIN EN ISO 10088-3. As the most widely utilized ferritic stainless steel worldwide, AISI 430 contains 16.0% to 18.0% chromium, delivering proven resistance to nitric acid, atmospheric corrosion, and chloride stress corrosion cracking.

Exotic Alloy is a premier manufacturer of AISI 430 fasteners, hex head bolts, carriage bolts, studs, machine screws, and custom drawing components. Available in metric (M3 to M100) and imperial sizes (1/4" to 4") with CNC precision threads to ASME, ISO, and DIN specifications.

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AISI 430 Bolting Products

AISI 430 Specifications & Standards

  • ASTM A276 / A276M
  • ASTM A493 (Cold Heading)
  • UNS S43000
  • SAE 51430
  • DIN EN ISO 10088-3 (1.4016 / X6Cr17)
  • JIS G4303 (SUS430)
  • BS 970 (430S17)
  • ISO 3506-1
AISI 430 Material Datasheet

AISI 430 Properties

Chemical Composition (AISI 430)
Elements C Mn P S Si Cr Ni Fe
Min % - - - - - 16.00 - Balance
Max % 0.08 1.00 0.040 0.030 1.00 18.00 0.50 Balance
Mechanical Properties (AISI 430)
Condition / Heat Treatment Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness
Annealed 500 300 22 % 165 HB / 86 HRB
Cold Drawn (Turned) 650 480 15 % 200 HB / 93 HRB

AISI 430 Characteristics

  • Benchmark 17% Cr ferritic alloy with excellent resistance to nitric acid and atmospheric oxidation
  • Virtually immune to chloride-induced Stress Corrosion Cracking (SCC) that afflicts 304
  • High thermal scaling resistance with continuous operation up to 815°C (1500°F)
  • Lower thermal expansion coefficient than austenitic 304, minimizing thermal strain
  • Fully ferromagnetic across all conditions with high thermal conductivity

AISI 430 Applications

  • Nitric acid manufacturing plants, fertilizer equipment bolting, and chemical storage studs
  • Automotive exterior trim fasteners, wiper arm pivots, and decorative body hardware
  • Kitchen appliance fasteners, dishwasher interior bolts, and range hood screws
  • Architectural panels, interior wall cladding fasteners, and elevator door hardware
  • Chimney liners, flue gas ducting bolts, and residential heater fasteners