Stainless Steel 304H Fasteners

AISI 4130 Bolts

SS 304H fasteners are manufactured in all types of bolts, screws, stud bolts, threaded rods, nuts, washers and other custom bolting parts. Stainless steel 304h fasteners are often produced in hot forged condition due to its high carbon content and relatively low forming properties.

Stainless steel alloy 304h is high carbon variant of traditional 304 grade for high temperature service with subsequent reduction in forming properties. SS 304H is alternatively know by its grade equivalent alloy AISI 304H, UNS S30409, DIN 1.4948 & SUS 304H.

Chemical Composition

  • Carbon C 0.08% Max
  • Manganese Mn 2.00 max
  • Sulphur S 0.03% max
  • Phophorous P 0.045% max
  • Silicon Si 1.00% max
  • Nickel Ni 8.00-11.0%
  • Chromium Cr 18.0-20.0%
  • Iron Fe Balance

Mechanical Properties

  • Tensile Strength : 515 MPa
  • Yield Strength : 205 MPa
  • Elongation : 40% min
  • Reduction of Area : 50% min
  • Hardness, Brinell : --

AISI 304H Grade Equivalent

AISI Grade European Name UNS Designation DIN Equivalent SUS
304H   S30409 1.43948 304H

AISI 304H Fastening Products

AISI 304H Specifications

Specifications Material Form Products
ASTM A182 F304    
ASTM A193 Grade B8    
ASTM A194 Grade 8    
ASTM A240 Type 304    
ASTM A276 Type 304    
ASTM A479 Type 304    
ASTM F593 Type 304    
ASTM F594 Type 304    
BS EN ISO 3506-1 A2-50    
BS EN ISO 3506-1 A2-70    
BS EN ISO 3506-1 A2-80    
BS EN ISO 3506-2 A2-25    
BS EN ISO 3506-2 A2-35    
BS EN ISO 3506-2 A2-40    
BS EN ISO 3506-2 A2-50    
BS EN ISO 3506-2 A2-70    
BS EN ISO 3506-2 A2-80    


SS 304 fasteners are widely used for bolting pipeline components, instruments & equipments in following sectors.