Combination of Welding Procedures as per DNV-OS-C401

[chakote...@gmail.com]

Dear Experts,

I have qualified PQR on 10 mm thickness, groove angle 45 Deg, 

Thickness range - 3-20 mm 

Range for Groove angle is 40-65

PQR on 30 mm thickness, groove angle 50 deg 

Thickness range - 15-60 mm 

Range of groove angle is 45-70

Can I combine above to PQRs for groove angle range 40-70. 

Job thickness is 60 mm. 

Groove angle is 40 deg .

Is there any reference in DNVGL-OS-C401 for groove angle range on minimum side. 

Your expert advice is awaited. 

Regards,

Vishal R Chakote