Sec. 255.113. Longitudinal joint factor (E) for steel pipe

Latest version.

(a) The longitudinal joint factor to be used in the design formula in section 255.105 of this Part is determined in accordance with the following table:

Specification^*	Pipe Class	Longitudinal Joint Factor (E)
ASTM A 53/A 53M	Seamless	1.00
	Electric resistance welded	1.00
	Furnace butt welded	.60
ASTM A 106	Seamless	1.00
ASTM A 211	Spiral welded steel pipe	.80
ASTM A 333	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 four inches (102 millimeters)	.80
	Pipe four inches (102 millimeters) or less	.60

As described in section 10.3 of this Title.

(b) If the type of longitudinal joint cannot be determined, the joint factor to be used must not exceed that designated for Other.

Notation

As described in section 10.3 of this Title.

                    
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