ASTM A836 Specification

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

Scope

ASTM A836 specification covers nonstandard as-forged fittings, valve components, and parts for glass-lined piping and pressure vessel service. Mechanical properties are certified on the basis of test material subjected to heat treatments to simulate glass-coating operations

Chemical Requirements

ElementC, maxMn, maxP, maxSi, maxS, maxTi, minTi, max.
Composition, %0.200.900.050.350.054× carbon content1.00

Mechanical Requirements

ClassClass I
Tensile strength, min, ksi [MPa]55 [380]
Yield strength,A min, ksi [MPa]25 [175]
Elongation in 2 in. or 50 mm, min, %22
Reduction of area, min, %35
  • (A) Determined by either the 0.2 % offset method or the 0.5 % extension-under-load method.

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