Study on Susceptibility and Mechanism of Reheat Cracking in Welded Joint of Type 347 Austenitic Stainless Steel

Table 4

Welding specimen M high-temperature constant load test result.

No	Specimen no	Test load (MPa)	Fracturing time (s)
1	M-H1	76	1167
2	M-H2	50	10012
3	M-H3	40	13856
4	M-H4	35	27997
5	M-H5	30	57551
6	M-H6	28	68865
7	M-H7	26	35658
8	M-H8	24	50550
9	M-H9	23	Not fractured
10	M-H10	20	Not fractured

Note. The reheat cracking critical fracture stress of specimen M was 24 MPa, which is much lower than 80% of the high-temperature yield strength of base material, which means the welded joint had a high reheat cracking susceptibility.