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hastelloy C-276 —— Mechanical properties

The instantaneous mechanical properties of room temperature and high temperature of 00Crl6Ni65Mol6Ti ( hastelloy C-276 alloy) in different states are shown in Table 8-37~Table 8-39. From these data, it is known that the plasticity of this alloy does not decrease even after aging. The plasticity of the as-welded state is reduced, but its application in engineering is still satisfactory. Since the alloy has good thermal stability, the precipitation after aging is much less than that of 00Cr16Ni60Mol6W4 alloy, so there is no significant difference in the solid solution state and the aging state plasticity, as shown in Figure 8-30.

Table 8-37 Performance of hastelloy C-276 (00Crl6Ni65Mol6Ti) alloy sheet

sheet thicknes /mm

Test status

Test temperature/℃

Rm/MPa

Rm/MPa

A/%

HB

1.6

1066℃ solid solution

room temperature

77.58

416. 56

52

90

204

705. 57

402. 96

49

 

316

674. 53

376. 65

52

 

427

652. 40

319. 69

64

 

3. 1

1066solid solution

room temperature

800. 62

420. 29

54

92

204

677. 18

319.70

54

 

316

671.77

302.47

59

 

427

643.5

302. 47

62

 

538

643.7

302. 40

55

 

649

570. 50

290.70

50

 

760

475.41

259. 75

44

 

3.9

1066solid solution

room temperature

782.0

365. 17

55

91

204

688. 30

274. 90

55

 

316

649.70

248.72

61

 

427

655. 22

249.4

68

 

Table 8-38 Properties of Hastelloy C-4 Alloy Sheet and Medium Plate Aging State

thickness/mm

test state

test temperature/

Rm/MPa

Rp0.2/MPa

A/%

3. 1

900℃ aging 100h

room temperature

789.60

376.20

56

204

711.00

324. 50

54

316

685. 55

296. 95

57

427

658. 33

279. 70

60

538

642. 80

274. 90

57

649

596. 67

256. 30

56

760

525. 00

250.00

56

9. 37

900℃ aging 100h

room temperature

770. 30

335.50

62

204

693. 13

272. 15

51

316

675. 22

254.9

56

427

669. 70

254.9

57

538

617.34

221. 16

53

649

617.34

234.90

56

760

506.40

204.60

70

Table 8-39 Properties of plates and weldments in H astelloy C-4 alloy

Medium plate and weldment thickness/mm

test condition

test temperature/

Rm/MPa

Rm/MPa

A/%

6.25

1066℃ Quench after solid solution

room temperature

766. 86

336. 20

58

204

716.56

294. 89

54

316

711.74

281. 10

55

427

682. 11

254. 93

60

9.3 1066℃ Quench after solid solution room temperature 790. 30 355. 50 59
204 726. 20 300. 40 56
316 703. 50 269. 40 59
427 656. 60 257. 68 62
538 642. 84 227. 37 52
649 683. 58 213.59 52
760 482. 30 210. 80 53
12.5 1066℃ Quench after solid solution room temperature 804. 70 334. 85 63
93     70
204 763. 40 301. 10 61
316 724. 82 263. 88 65
427 706. 22 246. 66 66
649 634. 56 235.64 71
Weldment 12. 5

TIC

  room temperature 776. 50 470. 58 40
260 653. 86 351.40 39
  538 601.50 342. 40 35
Weldment 12. 5 650℃

aging

10h room temperature 783. 40 428.56 48
1000h room temperature 817. 84 410.64 46
Full weld TIG room temperature 737. 90 491.94 42

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Post time: Jun-03-2019