# Longitudinal Joint Factor (E) for Steel Pipe [49 CFR 192.113]

- **operation:** document
- **citation:** LAC 43:XIII §913
- **title:** Longitudinal Joint Factor (E) for Steel Pipe [49 CFR 192.113]
- **source type:** regulation
- **agency:** Louisiana Office of Conservation
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** 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 wel
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- **source url:** https://www.doa.la.gov/doa/osr/louisiana-administrative-code/
**body:**

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. 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).
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