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HAYNES® Alloys

Fracture Toughness

Room Temperature ASTM E1820 Tests

Material Condition Specimen Jc (lbs/in) KJC (ksi.in1/2)
Cold-worked (52-53%) 1 921 174
2 1151 195
3 897 172

4.25 in (108 mm) OD x 2.25 in (57 mm) ID Tube Pre-Cracked Half-T Compact Tension [C(T)] Specimens Located at 120° Increments

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