Specimen

σ_YS MPa

σ_YS MPa

(0.2% Offset)

UTS

(MPa)

% RA

Vickers Hardness (HV)

S1 RB

350

360

700

67.7

158 ± 5 HV10

S2 RB

840

880

1240

50.8

340 ± 2 HV10

S3 RB

280

290

550

64.1

185 ± 10 HV10

S4 RB 16 h

680

700

860

55.3

258 ± 10 HV10

S4 RB 25 h

475

490

560

66.7

223 ± 10 HV10

S5 RB

910

920

1150

49.1

408 ± 5 HV05

S6 Bolt

880

920

1170

41.4

-

370 ± 2 HV10 (Bulk)

400 ± 5 HV10 (Edge)

S7 AR Bolt

880

920

1175

42.9

-

370 ± 2 HV10 (Bulk)

400 ± 5 HV10 (Edge)