(a) The longitudinal joint factor to be used in the design formula in § 192.105 is determined in accordance with the table 1 to this paragraph (a):
| Specification
| Pipe class
| Longitudinal
joint factor
(E)
|
|---|
| ASTM A53/A53M (incorporated by reference, see § 192.7) | Seamless | 1.00
|
| | Electric resistance welded | 1.00
|
| | Furnace butt welded | .60
|
| ASTM A106/A106M (incorporated by reference, see § 192.7) | Seamless | 1.00
|
| ASTM A333/A333M (incorporated by reference, see § 192.7) | Seamless | 1.00
|
| | Electric resistance welded | 1.00
|
| ASTM A381 (incorporated by reference, see § 192.7) | Double submerged arc welded | 1.00
|
| ASTM A671/A671M (incorporated by reference, see § 192.7) | Electric-fusion-welded | 1.00
|
| ASTM A672 (incorporated by reference, see § 192.7) | Electric-fusion-welded | 1.00
|
| ASTM A691/A691M (incorporated by reference, see § 192.7) | Electric-fusion-welded | 1.00
|
| API Spec 5L (incorporated by reference, see § 192.7) | Seamless | 1.00
|
| | Electric resistance welded | 1.00
|
| | Electric flash welded | 1.00
|
| | Submerged arc welded | 1.00
|
| | Furnace butt welded | .60
|
| Other | Pipe over 4 inches (102 millimeters) | .80
|
| Other | Pipe 4 inches (102 millimeters) or less | .60 |
(b) If the type of longitudinal joint cannot be determined, the joint factor to be used must not exceed that designated for “Other.”
[Amdts. 192-135, 195-107, 89 FR 33280, Apr. 29, 2024]