| Heat Treatment |
T410 (0.14%C) Hardened 1800°F (982°C) |
| RockwellHardness
|
0.2% YS, Ksi (MPa) |
UTS, Ksi (MPa) |
| Annealed* |
81 HRB |
45.4
(313) |
80.4
(554) |
Hardened &
Tempered
400°F
(204°C) |
43 HRC |
156.1
(1076) |
202.9
(1399) |
Hardened &
Tempered
550°F
(288°C) |
40 HRC |
148.3
(1022) |
187.0
(1289) |
Hardened &
Tempered
600°F
(316°C) |
40 HRC |
148.8
(1026) |
186.1
(1283) |
Hardened &
Tempered
800°F
(427°C) |
41 HRC |
132.9
(916) |
188.5
(1300) |
Hardened &
Tempered
900°F
(482°C) |
41 HRC |
122.6
(845) |
188.3
(1298) |
Hardened &
Tempered
1000°F
(538°C) |
35 HRC |
127.9
(882) |
154.3
(1063) |
Hardened &
Tempered
1200°F
(649°C) |
98 HRB |
85.5
(589) |
111.2
(767) |
