LAC 43:XIII §913
Longitudinal Joint Factor (E) for Steel Pipe [49 CFR 192.113]
(A)A. The longitudinal joint factor to be used in the design formula in §905 is determined in accordance with the following table.#
Specification#
Pipe Class#
Longitudinal Joint Factor (E)#
ASTM A53/A53M (incorporated by reference, see § 507)#
Seamless#
1. 00#
Electric resistance welded#
1. 00#
Furnace butt welded#
.60#
ASTM A106/A106M#
(incorporated by reference, see § 507)#
Seamless#
1. 00#
ASTM A333/A333M (incorporated by reference, see § 507)#
Seamless#
1. 00#
Electric resistance welded#
1. 00#
ASTM A381 (incorporated by reference, see § 507)#
Double submerged arc welded#
1. 00#
ASTM A671/A671M (incorporated by reference, see § 507)#
Electric fusion welded#
1. 00#
ASTM A672 (incorporated by reference, see § 507)#
Electric fusion welded#
1. 00#
ASTM A691 (incorporated by reference, see § 507)#
Electric fusion welded#
1. 00#
API Spec 5L (incorporated by reference, see § 507)#
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)B. If the type of longitudinal joint cannot be determined, the joint factor to be used must not exceed that designated for "Other." [49 CFR 192.113]#
AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.#
HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:222 (April 1983), amended LR 10:514 (July 1984), LR 18:855 (August 1992), LR 20:444 (April 1994), LR 27:1538 (September 2001), LR 30:1231 (June 2004), LR 31:681 (March 2005), LR 44:1036 (June 2018), amended by the Department of Conservation and Energy, Office of Enforcement, LR 51:1831 (November 2025).#