ASTM A529 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

Related Specifications of ASTM A529

ASTM A529 Chemical Composition

Composition, % Element
C, max Mn, max P, max S, max Si, max Cu, min, when copper is specified
Grades 50 [345] and 55 [380] 0.27 1.35 0.04 0.05 0.40 0.20

ASTM A529 Mechanical Requirements

  Grade
ASTM A529 Grade 50 [345] ASTM A529 Grade 55 [380]
ksi [MPa] ksi [MPa]
Tensile strength, min 70B [485] 70 [485]
Tensile strength, max 100 [690] 100 [690]
Yield strength, min 50 [345] 55 [380]
Elongation in 8 in. [200 mm],min, % 18   17  
Elongation in 2 in. [50 mm], min, % 21   20  

ASTM A529 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

ASTM A529 Supplementary Requirements

S5   Charpy V-Notch Impact Test. 
S32  Single Heat Bundles
S78  Maximum Carbon Equivalent 
S79  Maximum Tensile Strength