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
Element
C, max
Mn, max
P, max
Si, max
S, max
Ti, min
Ti, max.
Composition, %
0.20
0.90
0.05
0.35
0.05
4× carbon content
1.00
Mechanical Requirements
Class
Class 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.