---
kind: "section"
citation: "49 C.F.R. § 192.107"
title: "49"
number: "192.107"
heading: "Yield strength ( S ) for steel pipe."
url: "https://uscodex.org/cfr/49/192.107"
---

# §192.107. Yield strength ( S ) for steel pipe.

- (a) For pipe that is manufactured in accordance with a specification listed in section I of appendix B of this part, the yield strength to be used in the design formula in [§ 192.105](/cfr/49/192.105.md) is the SMYS stated in the listed specification, if that value is known.
- (b) For pipe that is manufactured in accordance with a specification not listed in section I of appendix B to this part or whose specification or tensile properties are unknown, the yield strength to be used in the design formula in [§ 192.105](/cfr/49/192.105.md) is one of the following:
  - (1) If the pipe is tensile tested in accordance with section II-D of appendix B to this part, the lower of the following:
    - (i) 80 percent of the average yield strength determined by the tensile tests.
    - (ii) **The lowest yield strength determined by the tensile tests.**
  - (2) If the pipe is not tensile tested as provided in [paragraph (b)(1)](#b-1) of this section, 24,000 p.s.i. (165 MPa).

## Notes

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-78, 61 FR 28783, June 6, 1996; Amdt. 192-83, 63 FR 7723, Feb. 17, 1998; 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. 192-78, 61 FR 28783, June 6, 1996; Amdt. 192-83, 63 FR 7723, Feb. 17, 1998; Amdt. 192-85, 63 FR 37502, July 13, 1998]