F2280

Alloy Steel

ASTM F2280 high-strength structural bolt assembly with direct tension indicator (DTI) for verifying preload.

Mechanical Properties

Tensile 825 MPa min Yield 635 MPa min; direct tension indicator

Chinese Standard

ASTM A325 / A325M-2014; F1852; F2280

Applications

Structural bolts with direct tension indicator

Available Forms

Bolts with DTI washers

Uses

Steel structures with tension verification

Heat Treatment

Quenched and tempered medium-carbon alloy steel

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