# Bending of pipe.

**Citation:** 49 CFR 195.212  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) Pipe must not have a wrinkle bend.

(b) Each field bend must comply with the following:

(1) A bend must not impair the serviceability of the pipe.

(2) Each bend must have a smooth contour and be free from buckling, cracks, or any other mechanical damage.

(3) On pipe containing a longitudinal 

## Document text

(a) Pipe must not have a wrinkle bend.

(b) Each field bend must comply with the following:

(1) A bend must not impair the serviceability of the pipe.

(2) Each bend must have a smooth contour and be free from buckling, cracks, or any other mechanical damage.

(3) On pipe containing a longitudinal weld, the longitudinal weld must be as near as practicable to the neutral axis of the bend unless—

(i) The bend is made with an internal bending mandrel; or

(ii) The pipe is 12 3/4 in (324 mm) or less nominal outside diameter or has a diameter to wall thickness ratio less than 70.

(c) Each circumferential weld which is located where the stress during bending causes a permanent deformation in the pipe must be nondestructively tested either before or after the bending process.

[Amdt. 195-22, 46 FR 38360, July 27, 1981, as amended by Amdt. 195-52, 59 FR 33396, June 28, 1994; Amdt. 195-63, 63 FR 37506, July 13, 1998]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-195.212>
- Source ID: `ecfr`
- SHA-256: `b10662dd4b46fe99d6603441e2b5898d657efec353fb9e98c8e5288647a097a4`
- Retrieved: 2026-08-20T05:54:41.219Z
- Exported: 2026-08-22T09:48:56.293Z
- Document slug: `49-cfr-195-212`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "195",
  "section": "195.212",
  "subpart": "Subpart D—Construction",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```