Thermomechanical Model and Bursting Tests to Evaluate the Risk of Swelling and Bursting of Modified 9Cr-1Mo Steel Steam Generator Tubes during a Sodium-Water Reaction Accident

Table 4

Comparison of rupture time of the 9% Cr with the experimental measures SQUAT.

SQUAT test	Target pressure (bar)	Target temperature (°C)	Bursting time measured (s)	Bursting time calculated (s) MECTUB v2.0	Relative error (%)
1	70	1280	10.2	13.8	26.1
2	170	850	>2150	>2500	0
3	170	900	460	458	−0.4
4	170	950	111	97	−14.4
5	170	1000	39	38	−2,6
6	170	1050	19.5	20	0
7	70	1100	187	141	−32.6
8	70	1200	42	29	−44.8
9	70	1050	390	337	−15.7
10	70	1050	401	349	−14.9