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HAYNES® Alloys

Fabrication Characteristics

Heat Treatment

HAYNES® 25 alloy is normaly final solution heat-treated at 2150 to 2250°F (1175 to 1230°C) for a time commensurated with section thickness. Annealing during fabrication can be performed at even lower temperatures, but a final, subsequent solution heat treatment is needed to produce optimum properties and structure. Please call Haynes International for further information.

Cold Reduction Subsequent
Anneal
0.2% Yield Strength Ultimate Tensile Strength Elongation Hardness
% None ksi MPa ksi MPa % HRC
0 68.4 470 144.0 995 58.5 24
10 123.6 850 181.9 1255 37.1 36
15 148.5 1025 178.2 1230 27.7 40
20 150.9 1040 193.5 1335 18.2 42
25 183.9 1270 232.5 1605 14.6 44
10 1950°F (1065°C) for 5 min. 97.9 675 163.0 1125 39.3 32
15 91.2 630 167.1 1150 43.8 30
20 96.5 665 170.7 1175 40.8 32
25 88.9 615 169.5 1170 44.3 32
10 2050°F (1120°C) for 5 min. 74.0 510 156.6 1080 53.4 27
15 78.6 540 161.2 1110 51.9 28
20 82.0 565 164.8 1135 47.6 31
25 82.9 570 165.6 1140 48.0 30
10 2150°F (1117°C) for 5 min. 66.9 460 148.1 1020 62.6 21
15 73.6 505 156.1 1075 55.4 26
20 72.1 495 154.0 1060 59.3 26
25 68.5 470 149.3 1030 61.7 25

*Based upon cold reductions taken upon 0.110-inch (2.8 mm) thick sheet. Duplicate tests.
HRC = Hardness Rockwell “C”.

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