Precision-machined Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), and Grade 7 components forged to international pressure, chemical, and marine standards.
Why precision radial-axial seamless rolled rings outperform cut plate and cast flanges under cyclic hydraulic fatigue and aggressive marine environments.
In high-pressure offshore connections, fluid transmission lines, and subsea pipelines, the integrity of a flange ring depends fundamentally on its metallurgical grain orientation. Flange rings flame-cut or waterjet-cut from thick rolled plate exhibit an inherent weakness: planar anisotropy. When subjected to hoop stresses and axial bolt pre-loads, plate-cut rings present end-grain exposure across critical sealing faces, leading to micro-fissuring, lamellar tearing, and accelerated crevice corrosion along rolling planes.
Jovzi Titanium manufactures heavy-duty titanium flange rings and forged hollow shells conforming strictly to ASTM B381 (Standard Specification for Titanium and Titanium Alloy Forgings) and ASME B16.5. Starting from vacuum arc remelted (VAR) ingots produced in Baoji—China's renowned Titanium Valley—our ingots undergo controlled thermo-mechanical open-die upsetting followed by seamless radial-axial ring rolling. This manufacturing process forces the grain flow of the alpha (α) or alpha-beta (α-β) microstructure into an uninterrupted circumferential pattern around the circumference of the ring. The resulting ring features isotropic mechanical properties, exceptional resistance to hoop deformation, superior Charpy V-notch toughness at sub-zero marine temperatures, and absolute resistance to delamination under intense cyclical hydrostatic loads.
Commercially pure titanium offering the premier balance between moderate yield strength and superior corrosion immunity in oxidizing media, wet chlorine, and marine seawater environments.
The workhorse alpha-beta alloy engineered for ultra-high strength applications where structural weight reduction, high bolting stress, and severe pressure differentials are non-negotiable.
Palladium-stabilized alloy providing identical mechanical strength to Grade 2, but with supreme crevice corrosion and reducing-acid resistance in low-pH, elevated-temperature environments.
| Forging Grade | UNS No. | Yield Min (MPa) | Tensile Min (MPa) | Density (g/cm³) | Standard Equivalents | Ultrasonic Testing Standard |
|---|---|---|---|---|---|---|
| Grade F-1 | R50250 | 170 | 240 | 4.51 | ASME SB-381 / DIN 3.7025 | ASTM A388 / AMS 2631 Class A1 |
| Grade F-2 | R50400 | 275 | 345 | 4.51 | ASME SB-381 / DIN 3.7035 | ASTM A388 / AMS 2631 Class A1 |
| Grade F-5 | R56400 | 828 | 895 | 4.43 | Ti-6Al-4V / DIN 3.7165 | ASTM A388 / AMS 2631 Class AA/A |
| Grade F-7 | R52400 | 275 | 345 | 4.51 | Ti-0.15Pd / DIN 3.7235 | ASTM A388 / AMS 2631 Class A1 |
| Grade F-12 | R53400 | 345 | 483 | 4.51 | Ti-0.3Mo-0.8Ni / DIN 3.7105 | ASTM A388 / AMS 2631 Class A1 |
Deploying high-integrity titanium forged rings and flow equipment across Albania's maritime, petrochemical, natural gas transit, and hydrometallurgical infrastructure.
The southern Adriatic and Ionian basins, coupled with Albania's inland onshore extraction fields (Patos-Marinza, Kuçova), produce crude oil heavily laden with associated formation waters, sulfur, and CO&sub2;. Conventional duplex and 316L stainless steel flanges routinely suffer from sulfide stress cracking (SSC) and chloride-induced pitting.
Jovzi supplies Grade F-2 and Grade F-7 titanium weld neck, blind, and slip-on flange rings designed for separator pressure vessels, crude desalters, and offshore topside platforms. Our titanium materials are completely immune to microbially influenced corrosion (MIC) and ambient seawater splashing along the Albanian littoral zone.
As the Trans Adriatic Pipeline crosses Albania from Bilisht on the Greek border to Seman near Fier where it enters the Adriatic Sea, pressure control, metering stations, and coastal gas cooling assemblies are exposed to coastal marine atmosphere and aggressive saline groundwater.
Our forged ASME B16.5 Class 300# to 1500# titanium flange rings, spectacled blinds, and forged stub ends act as galvanic-barrier rings and high-pressure manifold seals, eliminating expensive cathodic protection repairs and providing a 50+ year maintenance-free design life.
Durrës is Albania's principal maritime commercial gateway, undergoing major harbor expansions alongside naval engineering operations in Vlorë. Ship repair yards, coastal ballast water treatment systems, and marine exhaust gas cleaning systems (scrubbers) require materials that resist acidic sulfurous exhaust washwater mixed with warm Mediterranean seawater.
Jovzi manufactures custom titanium exhaust flange rings, V-band couplings, and marine overboard discharge piping flanges in Gr2 and Gr7, completely eliminating the rapid erosion-corrosion seen in Cu-Ni alloys and marine bronzes.
Albania ranks among the world's most significant producers of chromium, with primary deposits in the Bulqizë and Tropojë ophiolite belts. Downstream hydrometallurgical refining, smelting off-gas handling, and chromic acid recovery loops involve severe oxidative acidic reagents.
Our Grade 2 customized titanium plating racks, jig hook tube assemblies, and ASTM B381 blind/orifice flanges withstand high temperatures in sulfuric and nitric acid environments without metallic ion leaching, maximizing the operational cycle of mineral digestion reactors.
Operating directly out of Baoji, China's Titanium Valley since 2006, delivering guaranteed metallurgical purity, comprehensive third-party testing, and turnkey logistics to Albania.
Strict quality management overseeing every phase from 0-grade sponge titanium melting to 3-axis / 5-axis precision CNC machining and multi-axis ring forging.
Every shipment to Albania comes accompanied by fully traceable mill test certificates documenting exact chemical composition, tensile, yield, and elongation per heat number.
Upon request, Jovzi provides authoritative third-party testing certificates from the national BaoTi Testing Center, including radiographic (RT) and ultrasonic (UT) flaw reports.
Full support for Incoterms 2020 including CIF Port of Durrës, CIP Tirana, or DDP direct to your plant. Complete export documentation with EUR.1 / Certificate of Origin support.
Key metallurgical, compliance, logistics, and design answers for procurement officers and piping engineers in Albania.