49 CFR § 192.113
Longitudinal joint factor (E) for steel pipe
November 18, 2020
The longitudinal joint factor to be used in the design formula in §192.105 is determined in accordance with the following table:
Open Table
| Specification | Pipe class | Longitudinal joint factor (E) |
|---|---|---|
| ASTM A 53/A53M | Seamless | 1.00 |
| Electric resistance welded | 1.00 | |
| Furnace butt welded | .60 | |
| ASTM A 106 | Seamless | 1.00 |
| ASTM A 333/A 333M | Seamless | 1.00 |
| Electric resistance welded | 1.00 | |
| ASTM A 381 | Double submerged arc welded | 1.00 |
| ASTM A 671 | Electric-fusion-welded | 1.00 |
| ASTM A 672 | Electric-fusion-welded | 1.00 |
| ASTM A 691 | Electric-fusion-welded | 1.00 |
| API Spec 5L | 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 |
If the type of longitudinal joint cannot be determined, the joint factor to be used must not exceed that designated for “Other.”
[Amdt. 192-37, 46 FR 10159, Feb. 2, 1981, as amended by Amdt. 192-51, 51 FR 15335, Apr. 23, 1986; Amdt. 192-62, 54 FR 5627, Feb. 6, 1989; 58 FR 14521, Mar. 18, 1993; Amdt. 192-85, 63 FR 37502, July 13, 1998; Amdt. 192-94, 69 FR 32894, June 14, 2004; Amdt. 192-119, 80 FR 180, Jan. 5, 2015]
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