What materials are used for the plunger?

Standard materials used are AISI 4135 (equivalent to 35CrMo) and AISI 5140 (equivalent to 40Cr). Customized materials can also be selected as per requirements.

API Certified Hna High - Pressure Metal Plunger

Name: API Certified Hna High - Pressure Metal Plunger
Brand: Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.
SKU: 2077498262

Shandong, ChinaQingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

US$100.00-1,000.00

1 Piece

Product profile

Customization

Available

Warranty

1 Year

Manufacturing Process

Forging

Model NO.

Metal Plunger

Surface Treatment

Quenching

Operation Pressure

Atmospheric Pressure

Material

Steel

Transport Package

by Sea

Trademark

HNA

Origin

China

Production Capacity

300

Key features

API Certified Quality: Certified by API Q1, 7K, ISO, and IADC with high-end oil company approvals.

High Pressure Rating: Rated for maximum pressure up to 20,000 PSI for rugged well-service applications.

Durable Surface Finish: High-frequency quenched or chrome-plated surface with HRC 58-62 hardness.

Customizable Materials: Standard AISI 4135/5140 or customized materials selected per requirements.

Wide Size Range: Available sizes from 2.5 inches (63.5 mm) to 6.5 inches (165.1 mm).

Full Interchangeability: Fully interchangeable with major plunger types in the O&G pump industry.

Advanced Heat Treatment: World-class heat treatment ensures excellent mechanical and corrosion resistance.

OEM/ODM Service: Customized designs and series available meeting API and non-API standards.

Company profile

Years of Export ExperienceFast DeliveryQuality AssuranceManagement Certification

Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 23 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤6.20h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad customization, ODM, and OEM capabilities. It holds ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and reports documented quality, corrective-action, and complaint-handling procedures. Its export share is stated at 71%–90%, with 23 years of export experience, inventory capability, and participation in the Offshore Technology Conference. However, it does not provide 3D software design services, has no available SDK, no overseas warehouse, showroom, agent, or branch, and no valid manufacturing-capacity contract with affiliated subcontractors. No new products were launched in the past year, and only two R&D engineers are reported. Financial records are identified for 2021–2023, but the provided information does not contain sufficient financial performance detail to assess credibility. Customer evidence includes OEM service for well-known brands and repeat-buyer preference of 50%–80%, but no Fortune 500 cooperation.

Supplier typeThe supplier explicitly describes itself as a professional technical supplier and emphasizes learning, innovation, superior products, and technical support. This supports classification as a professional technical supplier rather than a purely trading-oriented entity.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications in both its sustainability and management-system information. These stated certifications provide explicit evidence of formal quality, occupational health and safety, and environmental management systems.

After-Sales capabilityThe supplier states that it provides pre-sales and after-sales technical support, while documented procedures and records exist for corrective and preventive actions and customer complaints. These statements support an established after-sales and issue-resolution process.

R&D capabilityThe supplier has two R&D engineers and offers ODM services, but it does not provide an SDK, did not launch new products in the past year, and does not offer 3D software design services. The evidence shows some development capability but also explicit limitations in recent innovation output and technical-service scope.

Production capacityThe supplier reports in-stock service capability, 23 years of export activity, an export share of 71%–90%, and proximity to Qingdao Port. However, it has no valid manufacturing-capacity contract with affiliated subcontractors and lacks overseas warehouses, branches, and agents, so production and international fulfillment capability cannot be rated as clearly strong overall.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad customization capability, although 3D software design services are not provided.

Client casesThe supplier reports participation in the Offshore Technology Conference, OEM service for well-known brands, and repeat-buyer preference of 50%–80%. However, it reports no cooperation with Fortune 500 companies and provides no specific customer names or case details, so the evidence is positive but limited.

Product Q&A

Q:What are the payment terms?

For new clients, advance payment (30%-100% of total amount) is required, and the balance needs to be paid before delivery after inspection.

Q:What payment methods do you accept?

We accept T/T (Telegraphic Transfer) or L/C (Letter of Credit). After receiving the PI, you can make payment through your bank as per the terms mentioned in the PI.

Q:What is the order procedure?

First, we discuss order and production details via email, TM, or other social media. Then we issue a PI for your confirmation. You will be requested to make full payment or deposit before production starts. After production, we contact you for shipment details and balance payment before arranging shipment.

Q:What is the lead time for production?

Depending on the products, we usually need a couple of days or even months to complete production if items are not in stock. Peak season lead time is one month, and off-season lead time is within 15 workdays.

Q:Is customization available for this plunger?

Yes, customized specific designs and series of HNA High-Pressure Metal Plunger are available, meeting both API and non-API standards.