UNS S32205 / S32750 / S32760 Bright Annealed ERW Duplex Steel Welded Tube

UNS S32205 S32750 Duplex Stainless Steel Welded Instrumentation Tube

Specifications at a Glance

Why Choose MTSCO?

MTSCO has extensive experience in delivering multinational projects. In the field of small-diameter precision tubing, we recently successfully delivered a batch of Alloy 825 welded pipes specifically designed for harsh acidic environments. Leveraging the 35-year pipe manufacturing heritage of our subsidiary, HUXIN Pipe, the company has achieved full-process integration—from steel strip sourced directly from the mill, through fully automated welding and in-line bright annealing, to non-destructive testing—enabling us to provide cost-effective, compliant production capacity for global industrial fluid projects.

Additionally, MTSCO’s newly invested green factory is scheduled to commence operations in the fourth quarter of 2026. The new facility will fully utilize photovoltaic clean energy, increasing high-standard welded pipe production capacity while meeting multinational buyers’ strict compliance requirements for low-carbon, eco-friendly supply chains. If you have similar project needs, please contact us for supply chain support.

Production and Inspection Traceability

MTSCO has established a rigorous traceability system for production and inspection. From the arrival of raw steel strip at the plant, through each stage of cold forming, fully automated welding, and non-destructive testing, to the final container loading for ocean freight, the entire process is tracked using production process cards to ensure closed-loop traceability. The quality inspection team photographs and documents key stages. MTSCO ensures that the ink-coded markings on every finished instrument tube perfectly match the factory-issued Material Certificate of Quality (MTC), providing global EPC contractors with a highly transparent, digital quality traceability experience.

How Do We Control Quality at Every Stage of Production?

· Secondary Raw Material Inspection: We strictly source high-quality stainless steel strips from leading steel mills such as Qing Shan. Upon arrival, our quality inspection team conducts 100% PMI re-inspection and verifies the original manufacturer’s quality certificate (MTC) to ensure full compliance with material chemical composition requirements from the source.

· Digital Process Monitoring: On-site quality inspectors use production process cards to document all core process stages, ensuring closed-loop production data and complete traceability throughout the entire manufacturing process.

· 100% Non-Destructive Testing Before Shipment: All precision instrument tubes must pass 100% online eddy current testing and hydrostatic testing before delivery. We use objective non-destructive testing data to comprehensively verify the pressure integrity of the tubing. MTSCO ensures that products delivered to project sites are defect-free.

Chemical Composition

Physical Properties

FAQ

Q1: Can we arrange for third-party inspections?

A1: Absolutely. We fully support on-site inspections by authoritative third-party organizations such as SGS, TÜV, and BV prior to shipment. Our QC team will actively cooperate to ensure a smooth inspection process, giving you peace of mind when receiving your shipment.

Q2: During long-cycle production periods spanning several months, how can the purchaser monitor the real-time progress of their order?

A2: We provide a transparent order milestone tracking service. A dedicated project coordinator will regularly send progress reports to the client including on-site photos of raw material receipt, welding, heat treatment, and non-destructive testing, ensuring that the cross-border procurement process remains 100% under the client's control regarding delivery schedules.

Q3: Do you accept small-volume or custom orders?

A3: Absolutely. Thanks to our exclusive partnership with our parent company’s manufacturing facilities, MTSCO can quickly respond to your custom requirements. Whether you need non-standard dimensions, special chemical compositions, or specific mechanical properties, we can efficiently meet your needs.