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ASTM F3125-15
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ASTM F3125-15 Standard Specification for High Strength Structural Bolts, Steel and Alloy Steel, Heat Treated, 120 ksi (830 MPa) and 150 ksi (1040 MPa) Minimum Tensile Strength, Inch and Metric Dimensions
standard by ASTM International, 01/01/2015
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Full Description
1.1This specification covers chemical, physical and mechanical requirements for quenched and tempered bolts manufactured from steel and alloy steel, in inch and metric dimensions, in two strength grades, two types and two styles.
1.1.1This specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852 and F2280.
1.1.2This consolidated standard is to ensure alignment between standards with the same intended end use and to simplify the use and maintenance of structural bolt specifications.
1.2Intended Use:
1.2.1Bolts manufactured under this specification are intended for use in structural connections covered in the Specification for Structural Joints Using High-Strength Bolts, as approved by the Research Council on Structural Connections.
1.2.2Bolts in this specification are furnished in sizes from 1/2to 1-1/2in. inclusive and from M12 to M36 inclusive.
1.3Classification:
1.3.1Bolts are designated by grade or property class, which indicates inch or metric respectively.
1.3.2Bolts are designated by type denoting raw material chemical composition.
1.3.3Bolts are designated by style denoting Heavy Hex bolts or Twist-Off Style assemblies.
| Grade | Min. Strength | Type | Style | |
| A325 | 120 ksi | 1 | 3 | Heavy Hex Head |
| A325M | 830 MPa | 1 | 3 | Heavy Hex Head |
| F1852 | 120 ksi | 1 | 3 | Twist-Off |
| A490 | 150 ksi | 1 | 3 | Heavy Hex Head |
| A490M | 1040 MPa | 1 | 3 | Heavy Hex Head |
| F2280 | 150 ksi | 1 | 3 | Twist-Off |
| Type 1 - 120 ksi (830 MPa) - carbon steel, carbon boron steel, alloy steel or | ||||
| Type 3 - 120 ksi (830 MPa) or 150 ksi (1040 MPa) - weathering steel | ||||
| Type 1 - 150 ksi (1040 MPa) - alloy steel or alloy steel with boron addition | ||||
1.4Terms used in this specification are defined in F1789.
1.5Units-The values stated in either SI units or inch pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.6Table footnotes are requirements. Notes are advisory.
1.7The following safety hazard caveat pertains to the test methods portion 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.