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Table 2 Microhardness profile measured in treated steel SAE 5130 post-torching

From: Effect of torch process on the steels used for bucket, shovel handle, and other high-tonne mining equipment

Relative position

(See text) (mm)

SAE 5130

(HV)

0.5

462

1

446

1.5

309

2

289

2.5

272

3.0

302

3.5

301

4.0

328

4.5

353

5.0

358

5.5

371

6.0

411

6.5

429

7.0

434

7.5

441

8.0

457

8.5

467

9.0

478

10

462

10.5

462