Puyang Zhongshi Group Co., Ltd.
                                                                                                           
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API 11B Compliant Polished Rod with 30 CrMoA Alloy Steel and Ni35 Nickel-Based Coating for Oil Well Applications

Price Negotiable
Price: 110
MOQ: 100
Delivery Time: 30 days
Brand: ZS
Product Description
Polished Rods 1 1/4" x 16ft with API 1" Pin x Pin Threads
Dimensions: 1 1/4" x 16ft length
Threads: API 1" pin x pin
Material: 30 CrMoA alloy steel
Surface Coating: Ni35 nickel-based alloy
Accessories: Complete with T couplings
Our spray metal polished rods are manufactured to meet API Specification 11B (latest edition) and AISI Steel Products Manual standards. These ultra-high tensile strength rods feature long stroke capability and exceptional corrosion resistance, making them ideal for demanding oilfield applications.
Advanced Manufacturing Process
Manufactured from high-quality alloy steel, each rod undergoes precise heat treatment through quenching and tempering processes. The rod surface is metal sprayed with nickel-based alloy (Ni35) to enhance corrosion and wear resistance, ensuring extended service life in harsh environments.
Polished rods feature cold-formed, fully rolled threads that provide superior strength and fatigue resistance. The cold-forming process reshapes steel fibers to follow the thread contour, creating a thread surface with improved corrosion resistance and reduced abrasion within the thread profile.
The work-hardened flank delivers increased surface tensile, yield, and shear strength. Pressure deformation during manufacturing creates a residual compressive stress system at the thread root, effectively counteracting tensile loading. This results in significantly enhanced load capacity, corrosion resistance, and fatigue performance compared to cut or burnished threads.
Applications
  • Primary connection between pumping units and rod strings in oil wells
  • Standard grade D polished rods for non-corrosive environments
  • End upsetting polished rods for combination with sucker rods
  • Corrosion-resistant models for deep wells, large displacement wells, thickened oil wells, and high corrosion environments
High-quality polished rod with API pin threads and Ni35 surface coating for oilfield applications

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Puyang Zhongshi Group Co., Ltd.
Location Room2212, B Building, Tiandi Times Square, Weiyang District, Xi'an City, Shaanxi P.R., China
Contact Person Liza

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