Puyang Zhongshi Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000 |
| Delivery Time | 30 days |
| Packaging Details | Wooden case |
| Brand Name | zs |
| Model Number | 7/8'' |
| Certification | API |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000 |
| Delivery Time | 30 days | Packaging Details | Wooden case |
| Brand Name | zs | Model Number | 7/8'' |
| Certification | API | ||
| High Light | 30 CrMoA Alloy Steel Polished Rod ，Ni35 Nickel-Based Alloy Coating Sucker Rod ，API 1" Pin x Pin Threads API 11B Rod | ||
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

Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
5 million-10 million
Employee Number:
570~600
Ecer Certification：
Verified Supplier
Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o... Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o...
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