49 CFR 230.25 - Maximum allowable stress on stays and braces.

Regulations last checked for updates: Feb 11, 2026

Title 49 - Transportation last revised: Feb 03, 2026

View all text of Subpart B [§ 230.23 - § 230.65]

§ 230.25 - Maximum allowable stress on stays and braces.

The maximum allowable stress per square inch of net cross sectional area on fire box and combustion chamber stays shall be 7,500 psi. The maximum allowable stress per square inch of net cross sectional area on round, rectangular, or gusset braces shall be 9,000 psi.

authority: 49 U.S.C. 20103,20107,20702; 28 U.S.C. 2461 note; and 49 CFR 1.89

source: 64 FR 62865, Nov. 17, 1999, unless otherwise noted.

cite as: 49 CFR 230.25