FEITING Group Delivers Special Material Pipe Prefabrication for Kazakhstan KPI Petrochemical Project
Project: Kazakhstan KPI Company – Propane Dehydrogenation to Propylene and Polypropylene Project
Design Unit: Hualu Engineering Technology Co., Ltd.
Supplied Product: Three Major Piping Systems
Max Specification: DN2400
Materials: WP321H, F321H, WP11, F11, WP310S, F310S
Overview of Special Material Pipe Prefabrication
As industrial projects grow increasingly complex and demanding, the need for special material pipe prefabrication becomes paramount. These pipes are required to perform reliably in environments involving high temperatures, high pressures, and chemically aggressive substances. FEITING Group is proud to serve this market by offering precision-engineered prefabrication of piping systems using advanced alloys.
Our latest achievement is the successful supply of prefabricated piping systems for the Kazakhstan KPI Company’s propane dehydrogenation to polypropylene project, a strategic industrial initiative advancing Kazakhstan’s petrochemical capabilities.
Project Background
The KPI project is a major step in Kazakhstan’s energy diversification strategy. Designed by Hualu Engineering Technology Co., Ltd., the project integrates propane dehydrogenation (PDH) technology to convert propane into propylene, which is then polymerized into polypropylene — a critical raw material in plastic production. The process involves high temperatures and corrosive environments, demanding piping systems built from special materials.
Scope of FEITING’s Special Material Pipe Prefabrication
FEITING Group supplied three complete piping systems with diameters reaching up to DN2400. Our special material pipe prefabrication scope included:
Custom steel pipes cut and beveled to specification
High-performance flanges for secure connections
Industrial-grade elbows for precise directional flow
Gaskets resistant to high temperature and chemical exposure
All prefabricated sections were subjected to rigorous dimensional inspection, welding quality checks, and pressure testing prior to shipment.
Materials Selected for Extreme Environments
The use of special alloys was key to meeting the design and operational requirements of the KPI project. The selected materials include:
WP321H / F321H: Titanium-stabilized austenitic steel offering strong resistance to intergranular corrosion under high temperature.
WP11 / F11: Chromium-molybdenum alloy with excellent creep strength and heat resistance.
WP310S / F310S: Highly alloyed stainless steel for exceptional performance in oxidizing atmospheres and thermal cycling conditions.
These materials ensured long-term integrity and minimized maintenance across all operational phases of the polypropylene plant.
Advantages of FEITING’s Prefabrication Strategy
By adopting a factory-controlled special material pipe prefabrication model, FEITING Group provided the KPI project with several critical benefits:
Precision and Consistency: CNC cutting and automated welding ensure tight dimensional control.
Time Efficiency: Site installation time reduced by over 40% due to ready-to-install prefabricated modules.
Enhanced Safety: Offsite fabrication reduces hot work and lifting operations at the construction site.
Full Traceability: All components were traceable through material certificates and welding logs.
Manufacturing and Testing Capabilities
FEITING Group maintains advanced production lines equipped with induction bending machines, orbital welding units, and real-time inspection systems. For the KPI project, each component of the special material pipe prefabrication scope was tested using:
Ultrasonic and radiographic inspection (RT, UT)
Hydrostatic pressure testing
PMI (Positive Material Identification)
Dimensional verification and visual testing
This strict quality control protocol ensures that every prefabricated assembly meets or exceeds international standards.
Why Choose FEITING Group for Special Material Pipe Prefabrication
FEITING Group combines decades of engineering experience with cutting-edge technology to deliver turnkey special material pipe prefabrication solutions. We understand the complexity of international energy and chemical projects and are equipped to deliver results on time and to specification.
Our success in the Kazakhstan KPI project reflects our dedication to quality, reliability, and global partnerships.
Contact Us
Interested in learning how FEITING Group can support your next petrochemical or industrial project? Our team is ready to deliver customized special material pipe prefabrication solutions for the most challenging applications.
Email: inquiry@feitingpipe.com
Phone:+86-18621118600