Phosphor Bronze C52100 Fasteners

AISI 4130 Bolts

Phosphor bronze C52100fasteners are manufactured and stock in variety of sizes and forms including regular hex bolts, hex nuts, screws, stud bolts, threaded rods, countersunk screws, hex nuts, plain washer, split lock washers, dowel pins, etc. Alloy C52100fasteners are used in field of aerospace, building marine equipment, chemical processing equipment, etc. BoltPort produces phosphor bronze fasteners in metric and imperial system.

About Alloy 521 Phosphor Bronze

Phosphor Bronze Alloy 521 is a hardened copper alloy with 8% phosphorus, highest among bronze category. Its use in marine engineering is purely commercial. Also known by its equivalent designation PB104, CW453K and DIN equivalent 2.1030.

Alloy C52100 Chemical Composition

  • Copper Cu 92.0
  • Tin Sn 8.0
  • Phosphorous P trace

Alloy C52100 Mechanical properties

  • Tensile Strength (MPa): 379-965
  • 0.2% Yield (MPa) : 165-552
  • Elongation % : 70
  • Machinability : 20
  • Shear Modulus : 41 GPa
  • Poisson's ratio : 0.34
  • Elastic modulus : 117 GPa

Alloy C52100 Fasteners

  • C52100 Bolts
  • C52100 Screws
  • C52100 Stud Bolts
  • C52100 Nuts
  • C52100 Washers
  • C52100 Pins
  • C52100 Threaded Rods

C52100 Specifications

Specifications Material Form Products
ASTM B103 Grade C52100    
ASTM B139 Grade C52100    
SAE J461 Grade C52100    
SAE J463 Grade C52100    


  • Marine fastening
  • Aerospace fastening
  • Chemical process equipment fastening
  • Fastening for industrial cooling system

Regular products

DIN 931 Hex Bolts, DIN 933 Hex Screws, DIN 934 Hex Nuts, ASME B18.2.1 Heavy Hex Bolts, ASME B18.2.2 Heavy Hex Nuts, DIN 125 Plain Flat Washers, DIN 127 Split Lock Washers, DIN 976 Stud Bolts, ASME B16.5 Stud Bolts, etc.