GNEE Group is pleased to announce that it has successfully delivered a substantial shipment of ASTM A789/A790 2205 duplex stainless steel seamless pipes to a major industrial infrastructure project in Vietnam.
This shipment marks another milestone in GNEE's business expansion within the Southeast Asian market, further solidifying the company's distinguished reputation for meeting rigorous technical specifications and adhering to demanding delivery schedules.
Vietnam has emerged as one of the fastest-growing industrial hubs in Southeast Asia, particularly in the following sectors: Petrochemical processing, fertilizer production, power generation, and industrial manufacturing. Client requirements are clear: they seek a piping solution capable of withstanding corrosion from high-concentration chlorides while simultaneously enduring high pressure and maintaining structural integrity.
What are ASTM A789 2205 Stainless Steel Seamless Tubes?
ASTM A789 2205 stainless steel seamless tubing is a high-strength, corrosion-resistant duplex material (typically composed of 22% chromium, 5% nickel, and 3% molybdenum) designed specifically for chloride-containing environments, though its applications are not limited to such settings. Compared to 300-series stainless steels, this tubing is highly favored in sectors such as oil and gas, chemical processing, and marine engineering, thanks to its exceptional resistance to stress corrosion cracking, as well as its high tensile and yield strengths.
2205 Stainless Steel Seamless Tubes Specifications (Delivered Batch)
| Item | Specification |
|---|---|
| Product Type | Seamless Stainless Steel Tubes |
| Material Grade | 2205 / UNS S31803 / S32205 |
| Standard | ASTM A789 / ASME SA789 |
| Outer Diameter (OD) | 19.05 mm – 63.5 mm |
| Wall Thickness (WT) | 1.0 mm – 4.0 mm |
| Length | Up to 6 m / 12 m (customizable) |
| Heat Treatment | Solution Annealed |
| Surface Finish | Pickled & Passivated |
| Testing | Hydrostatic Test, Eddy Current (ET), Ultrasonic (UT) |
| Certification | EN 10204 3.1 / 3.2 available |
To ensure compliance with international standards and our clients' specific "zero-defect" policies, GNEE implements a rigorous set of Quality Control (QC) protocols prior to the shipment of our tubing:
Material Verification: Every batch of tubing undergoes PMI (Positive Material Identification) testing to ensure the precise accuracy of its chemical composition-specifically Chromium (22%), Molybdenum (3%), and Nickel (5%).
Dimensional Accuracy: Seamless tubes are subjected to inspections for wall thickness uniformity and surface finish, strictly adhering to the tolerance ranges stipulated by the ASTM A789 standard.
Mechanical Property Testing: Hydrostatic testing and Eddy Current Testing are conducted to guarantee "zero leakage" under high-pressure operating conditions and to ensure robust structural integrity.
Packaging: Given that the shipment is destined for Vietnam via sea freight, all tubing is treated with an anti-corrosive coating and securely fastened within reinforced wooden crates to effectively prevent mechanical damage during port handling operations.
