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Impeller

Material：HTANi15Cu6Cr2 (Ni-Resist High-Nickel Austenitic Iron)
Unit Weight：0.525 kg
Molding & Pouring：Complex Shell-Making & Optimized Low-Temperature Casting
Casting Tolerance：ISO 8062 (GB/T6414) CT6 Grade

Description

Technical Specifications & Oilfield Metallurgy

Parameter / Process	Specification & Technical Highlights	Customer Benefits / Value
Material	HTANi15Cu6Cr2 (Ni-Resist High-Nickel Austenitic Iron)	Formulated with 15% Ni, 6% Cu, and 2% Cr to deliver exceptional defense against sour crude ( H₂S), saltwater, and abrasive sand erosion.
Application Scenario	Oil Extraction / Downhole Submersible Pumps (ESP) / Oilfield Fluid Handling	Purpose-built to endure continuous fluid shear stress and chemical corrosion in ultra-deep oil well extraction environments.
Unit Weight	0.525 kg	Lightweight, geometry-optimized profile engineered for high-efficiency dynamic rotation balances.
Pattern Craft	Precision Separate Splicing of Wax Molds	Overcomes complex closed-vane undercut geometries; proprietary assembly fixtures ensure perfectly balanced internal fluid paths.
Molding & Pouring	Complex Shell-Making & Optimized Low-Temperature Casting	Advanced premium slurry coating provides excellent gas permeability, while controlled low-temperature pouring yields a highly dense, fine-grain matrix.
Machining State	Precision CNC Machined Outer Surface Provided	Delivered with pristine outer dimension turning to ensure immediate, tight concentric assembly with downhole pump housings.
Casting Tolerance	ISO 8062 (GB/T6414) CT6 Grade	Elite near-net-shape accuracy for the as-cast segments, significantly decreasing secondary machining cycles.

Rigorous Downhole-Grade Quality Control

To prevent costly downhole pump failures and ensure long-term extraction uptime, our inspection team implements uncompromising quality protocols:

Concentricity & Outer Diameter Audit: 100% verified using digital micrometers and CMM (Coordinate Measuring Machines) to ensure the precision-machined outer surfaces maintain true geometric concentricity.
Internal Flow-Path Integrity: Inspected via industrial video-endoscopes to confirm that the spliced multi-vane channels are flawless, completely smooth, and free of any shell inclusions or ceramic residues.

Subsurface Porosity Screening: Evaluated using Liquid Penetrant Testing (LPT) to guarantee that vane-to-shroud joints and thin-walled fluid areas are completely free of shrinkage porosity or thermal cracks.
Ni-Resist Matrix Spectrometry: 100% validated via Optical Emission Spectrometers to verify the exact Nickel-Copper-Chromium balance, ensuring optimal corrosion resistance and non-magnetic stability.

Custom OEM / ODM Engineering for Oilfield Service Providers

Complex Helical Vane Execution: We specialize in custom manufacturing closed/open impellers, diffusers, and stage housings for Electric Submersible Pumps (ESP) based on your 3D digital layouts (STEP, IGES).
Tailored Shaft Hub Fittings: Fully equipped to machine high-precision internal splines, keyways, or tapered center bores to match your precise motor drive shaft specs.

Full Industrial Traceability: Detailed chemical analysis sheets (EN 10204 3.1), dimensional inspection charts, and hardness logs are securely packaged with every global shipment.

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