Historical
ASTM A325-02
Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
1. Scope1.1 This specification covers two types of quenched and tempered steel structural bolts having a minimum tensile strength of 120 ksi for sizes 1.0 in. and less and 105 ksi for sizes over 1.0 to 11/2 in., inclusive.1.2 The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A 325 or A 490 Bolts, approved by the Research Council on Structural Connections of the Engineering Foundation. 1.3 The bolts are furnished in sizes 1/2 to 11/2 in., inclusive. They are designated by type, denoting chemical composition as follows:Type Description Type 1 Medium carbon, carbon boron, or medium carbon alloy steel. Type 2 Withdrawn in November 1991.Type 3 Weathering steel. Atmospheric corrosion resistance and weathering characteristics are comparable to that of steels in Specifications A 242/A 242M, A 588/A 588M, and A 709/A 709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition (see ). When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications. Note 1Bolts for general applications, including anchor bolts, are covered by Specification A 449. Also refer to Specification A 449 for quenched and tempered steel bolts and studs with diameters greater than 11/2 in., but with similar mechanical properties.Note 2A complete metric companion to Specification A 325 has been developed-Specification A 325M; therefore no metric equivalents are presented in this specification. The following safety hazards caveat pertains only to the test methods portion, Section , of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM International [astm]