49 CFR § 192.113 - Longitudinal joint factor (E) for steel pipe.

§ 192.113 Longitudinal joint factor (E) for steel pipe.

The longitudinal joint factor to be used in the design formula in § 192.105 is determined in accordance with the following 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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