QC Profile
1.Re-inspection of coming raw material
1.1 Review Mill material test certificate
1.2 Size, marking and surface inspection of raw material ，10% for each Heat/Lot
1.3 Chemical analysis of raw material ，1 piece for each Heat/Lot
2 Heat treatment inspection
2.1 Verify heat treatment process (Heating, Insulation, Cooling)
2.2 Verify heat treatment curve
3 Mechanical property inspection
3.1Mechanical properties test ，1 piece for each Heat/Lot
3.2 Product hardness test, For example, A234 WPB material 100% Fullfil the inspection request.
4 NDE inlcudes X-RAY RT test, PT test, PMI test, MT and UT test as per contract requirement.
5. Hydrostatie test as per contract requirement
6. Intergranular corrosion as per ASTM A262 A&C
HIC test as per NACE TM0284
7. Visual Inspection
7.1 view test includes Size/Dimenison ， Wall thickness ，Surface, Identification etc) for finished products ，10-20% for each size.
8. Packages and Shipping Marks Request
Third Party Inspection for WN F60 flanges by TUV