N.Y. Comp. Codes R. & Regs. tit. 16, § 255.113
(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.