Impact test requirement for Unlisted material (ASTM A707 L5 CL3)

[aravind roche]

Experts,

please advise below,  I believe because of our service temperature the impact test is not required, please guide me. 

PQR material - A707 L5 CL3 to API 5L Gr X65

Thickness coupon: 25.4 mm

WPS qualified range is : 5 to 50.8 mm

Design code : B31.3

Qualification Standard : ASME Sec IX

Our Project MDT : 0° to 90°C

Service : Water

PWHT : Yes

Pre heat : Yes

Aravind.A

[Faisal Sattar]

Impact toughness test does not only depend on service temperature only, It also depends on working fluid, for example if your pipeline is sour service then impact toughness test should be conducted fot PQR qualification.

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[Faisal Sattar]

For water service, Impact test not required.

On Sat, Jun 10, 2023 at 4:07 PM aravind roche <aravin...@gmail.com> wrote:

[Venkadesh Lakshmanan]

Impact test not required.

Regards,

Venkadesh L 

[Kannayeram Gnanapandithan]

is it so. could u pl give some ref

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[james gerald]

ASTM A707 L5 forged product material impact tested at -60degC But API 5L X65  material for a thickness of 50.8 require Impact tests as per ASME B31.3 and hence PQR shall be impact tested

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

[aravind roche]

Thanks for your all response, 

we done the impact at -55°C in PQR, My query is our service fluid is water and service temp is 0° to 90°C, i believe then the thickness range in WPS we can use 5 mm to 50.4 mm.  

Design Code: B31.3

Qualification Standard : ASME Sec IX

[james gerald]

Base metal thickness qualified is 16mm to 50.4mm

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