Hardness range for CS+ Alloy0625 clad welding

[Saurabh Jain]

Dear experts.

I am currently in the process of qualifying a PQR for API 5L X65 + A350 LF6. Both material consists of a base metal with alloy 0625 cladding. Welding process: GTAW+SMAW

During the mechanical testing, I witnessed the following hardness values:
Clad material: 300 to 390 HV
Weld metal: 280 to 350 HV

This is for Aramco project, so I referred their standard 01-SAMSS-044, and it specifies that I must refer to NACE MR0175/ISO 15156 for hardness acceptance criteria, particularly for the clad.

I have reviewed the standard but cannot find a specific acceptable hardness range. I also checked Aramco's W-11/W-12 and W-16 standards but was unable to find the maximum allowable hardness for clad welding.

My question is: Are these recorded hardness values for the clad and weld metal acceptable under the NACE MR0175/ISO 15156 standard? If not, what are the typical hardness limitations and under which standard?

Regards 

Saurabh Jain