TEMPURATURES Flashcards

1
Q

Welding - Base metal temp where welding is not recommended

A

< 0 F

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2
Q

Welding - Base metal temp, pre-heat to 60 oF is recommended

A

0 - 32 F

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3
Q

Corrosion - CUI affects Carbon Steel & low alloy (temp range)

A

10 - 350 F

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4
Q

UT Calibration - Calibration Block must be within what temperature of the part to be examined

A

25 F

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5
Q

NDE - Standard temperature range for a PT exam

A

40 - 125 F

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6
Q

Corrosion - Temperature where Cooling Water corrosion starts to significantly increase

A

140 F

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7
Q

Corrosion - Temperature where chloride stress corrosion cracking becomes a concern

A

> 140 F

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8
Q

Corrosion - CUI affects Austenitic SS (temp range)

A

140 - 350 F

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9
Q

NDE - Special procedures are needed for UT thickness rdgs

A

> or = to 150 F

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10
Q

Corrosion - Temperature when high strength caustic causes serious corrosion in CS

A

> 170 F

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11
Q

Corrosion - CUI affects Duplex SS (temp range)

A

280–350 F

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12
Q

Welding - Minimum pre-heat temperature, when pre-heat is substituted for PWHT

A

300 F

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13
Q

Welding - Minimum pre-heat temperature, when a local PWHT is used in lieu of a full encirclement PWHT

A

300 F

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14
Q

Corrosion - Temp when Sulfidation becomes a concern on CS

A

500 F

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15
Q

Corrosion - Temper embrittlement for low chromes (range)

A

650–1070 F

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16
Q

Corrosion – If operating temp is above this, check for Creep in Cat Reformer equipment

A

> 900 F

17
Q

NDE - Maximum temperature for UT readings

A

1000 F

18
Q

Materials - Carbon Steel normal PWHT temperature

A

1100 F

19
Q

Mtls – Carbon Steel temp of base metal to create HAZ

A

> 1350 F

20
Q

Testing – Min. base metal temp during hydro vessels < 2” thick

A

MDMT + 10 F

21
Q

Testing - Min base metal temp during hydro vessels > 2” thick

A

MDMT + 30 F

22
Q

NDE - Maximum temperature for magnetic particles

A

Manufacturer Recommendations