---
kind: "section"
citation: "49 C.F.R. § 192.105"
title: "49"
number: "192.105"
heading: "Design formula for steel pipe."
url: "https://uscodex.org/cfr/49/192.105"
---

# §192.105. Design formula for steel pipe.

- (a) **The design pressure for steel pipe is determined in accordance with the following formula—**
- (b) If steel pipe that has been subjected to cold expansion to meet the SMYS is subsequently heated, other than by welding or stress relieving as a part of welding, the design pressure is limited to 75 percent of the pressure determined under [paragraph (a)](#a) of this section if the temperature of the pipe exceeds 900 °F (482 °C) at any time or is held above 600 °F (316 °C) for more than 1 hour.

## Notes

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-47, 49 FR 7569, Mar. 1, 1984; Amdt. 192-85, 63 FR 37502, July 13, 1998]

### Authority

Authority: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101 et. seq., and 49 CFR 1.97.

### Source

Source: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-47, 49 FR 7569, Mar. 1, 1984; Amdt. 192-85, 63 FR 37502, July 13, 1998]