The maximum PWHT shall be 10°C min. lower to the calculated transformation temperature for base material. gen.

[Andrew-Translator]

The maximum PWHT shall be 10°C min. lower to the calculated transformation temperature for base material.

Максимальная ПСТО должна быть минимум на 10°C ниже рассчитанной температуры превращения для основного металла.

Это правильный перевод?
Спасибо!
Контекст:

(1) PWHT can be avoided under conditions as specified in ASME B31.1-2010, Table 132.
(2) PWHT is mandatory for any thickness and diameter. However, not required for welds using capacitor discharge welding method used for temporary attachments such as temperature thermocouples.
(3) The maximum holding temperature is also limited by the actual chemical composition of the welding consumable, in particular to Ni+Mn if.
<1.50% but >1%, the maximum PWHT = 790°C

[Andrew-Translator]

(1) PWHT can be avoided under conditions as specified in ASME B31.1-2010, Table 132.
(2) PWHT is mandatory for any thickness and diameter. However, not required for welds using capacitor discharge welding method used for temporary attachments such as temperature thermocouples.
(3) The maximum holding temperature is also limited by the actual chemical composition of the welding consumable, in particular to Ni+Mn if.
<1.50% but >1%, the maximum PWHT = 790°C
<1.0%, the maximum PWHT = 800°C
However, variation to the temperature range given in Table 3 shall be submitted to Alstom approval prior to welding. Under no condition, the PWHT shall exceed the lower transformation temperature for base material. The maximum PWHT shall be 10°C min. lower to the calculated transformation temperature for base material.
(4) Repeated PWHT on alloy steels (e.g. P22, P91 and P92) should be avoided if possible. Contractor shall submit all records and quality documentation with submitting technical justification to Alstom representative. Only Alstom representative/specialist, is allowed to authorized to give a permission to proceed with the corrective PWHT.

[Liquid_Sun]

*Mакс. t послесварочной термообработки должна быть не менее чем на 10°C ниже расчетной температуры превращения основного металла.

[Andrew-Translator]

Спасибо!