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Delivery of ASTM A694 F65 WNRF Flange for UAE High-Pressure Pipeline
Haihao Group has completed forging, heat treatment and full mechanical verification of a 14 inch weld neck raised face flange, ready for dispatch to our UAE oil and gas client. This ASTM A694 F65 WNRF flange is built to ASME B16.5, Class 600, SCH STD / SCH30, and specified with strict low-temper ... -
Shipment of ASME B16.20 Spiral Wound Gaskets and A105N Blind Flange for Malaysia Client
Haihao Group has completed inspection and arranged shipment of a matched set of sealing gaskets and large diameter blind flange for our Malaysia piping partner. This package combines ASME B16.20 spiral wound gaskets and one ASME B16.47 Series A blind flange, prepared for on-site isolation and fl ... -
Haihao Group Delivers A350 LF2 CL1 ASME B16.5 WN Flanges for Russian Low-Temperature Piping
Cold service pipeline systems in Russia demand forged flanges that stay ductile under extreme subzero conditions, and material toughness validation is always a non-negotiable requirement for project approval. Haihao Group recently finished production and shipment of a batch of A350 LF2 CL1 ASME ... -
Haihao Group Delivers API 6A A350 LF2 CL1 Flanges for Russian Low-Temperature Wellhead Piping
Haihao Group recently completed fabrication and shipment of forged low-temperature flanges for a Russian oilfield client, combining API 6A Type 6B ring-joint units and standard ASME B16.5 blind flanges. All flanges are produced from A350 Gr. LF2 CL1 low-temperature carbon steel, with dedicated h ...



























