HPCO Clad Pipe Prefabrication
HPCO owns WPS/PQRs for butt weld covering carbon steel, duplex/super duplex steel, stainless steel, alloy steel and weld overlay composite materials. All are witnessed and approved by customers and the 3rd party of ABS, DNV, BV, TUV.
HPCOI can provide complete prefabricated piping spools and skids. Our welders are approved by AWS / LR / DNV / ABS for GTAW, SMAW, FCAW processes up to 6G skill level.
WPS/PQR for Weld Overlay：
Base Material | Cladding Material | Base Material | Cladding Material |
API 5L X65 | N06625 | A336 F11 | SS347 |
API 5L X70 | 15CrMo | ||
A106 GrB | A106 GrB | SS308L | |
A694 F70 | A333 Gr6 | SS317L | |
A350 LF2 | API 5L X65 | DS2209 | |
AISI 4130 | A216 WCB | SS410 | |
F316L | A106 GB | CuNi70/30 | |
A182 F51 | A350 LF2 | SS316L | |
API 5L X70 | N08825 | A333 Gr6 | |
A106 GB | FC-815 | AISI 4130 | |
A106 GB | STL-6 | A694 F65 |
WPS/PQR for Butt-Weld：
AISI 4130 | AISI 4130 | A182 F51 | A182 F51 |
A182 F22 | A182 F22 | A106 Gr C | A106 Gr C |
15CrMo | 15CrMo | API 5L X65 | API 5L X65 |
A694 F65 | A694 F65 | API 5L X65 + N06625 | API 5L X65 + N06625 |
AISI 410 | AISI 410 | ||
SS316L | SS316L | API 5L X70 + N06625 | API 5L X70 + N06625 |
A240 904L | A240 904L |
HPCO pays more attention to the in-process quality control. Good process traceability, real-time welding data checking & correction, strictly execution of Post Weld Heat Treatment procedure, Full and semi-automatic Cladding technology and Pipe Prefabrication technology, all these enable us to provide integrated solutions to the Pressure Piping System for our customers.
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