Engineered Flange Systems & Critical Titanium Components
Manufactured to rigid ASTM B381, ASTM B348, and ASME B16.5 standards. Browse our catalog below or submit technical drawings for custom forge-to-finish production.
Gr2 Gr5 Ti 6al4v Polished Titanium Plate & Blind Blanks
High-Integrity Titanium Alloy Valve Ball & Casing Assemblies
High Tensile Titanium Precision Rod & Machining Billets
Gr1 Gr2 Gr5 Gr9 Industrial Titanium Piping & Flange Spools
ASTM B265 Gr2 / Gr5 Plate Flange Stock (PL Facing)
ASTM B381 / B348 Grade 5 Forged Blocks & Flange Rings
American Standard Titanium Ball Cores & Integrated Flanges
Gr1 / Gr2 Titanium Custom Fixtures, Jigs & Anodizing Flanges
Engineering Standards & Flange Dimensional Matrix
Precision manufacturing parameters ensuring seamless interchangeability across petrochemical refining, desalination pipelines, and offshore platforms.
| Flange Type | Applicable Standards | Nominal Size (NPS) | Pressure Ratings | Common Grades | Sealing Face Types |
|---|---|---|---|---|---|
| Weld Neck (WN) | ASME B16.5, DIN 2633, EN 1092-1 | 1/2" – 48" (DN15 – DN1200) | Class 150 – 2500 / PN10 – PN400 | Gr2 Gr5 Gr12 | Raised Face (RF), Ring Type Joint (RTJ) |
| Slip-On (SO) | ASME B16.5, EN 1092-1 Type 12 | 1/2" – 24" (DN15 – DN600) | Class 150 – 600 / PN10 – PN100 | Gr1 Gr2 Gr7 | Raised Face (RF), Flat Face (FF) |
| Blind Flange (BL) | ASME B16.5, DIN 2527, API 6A | 1/2" – 48" (DN15 – DN1200) | Class 150 – 2500 / PN6 – PN400 | Gr2 Gr5 Gr7 | Flat Face (FF), RF, RTJ Smooth Finish |
| Lap Joint (LJ) + Stub End | ASME B16.5, ASTM B363 | 1/2" – 12" (DN15 – DN300) | Class 150 – 300 / PN10 – PN40 | Gr2 Gr1 | Form A/B Serrated Conforming Face |
| Threaded / Socket Weld | ASME B16.5, ASME B1.20.1 (NPT) | 1/2" – 4" (DN15 – DN100) | Class 150 – 1500 / PN16 – PN250 | Gr2 Gr5 (Ti-6Al-4V) | Raised Face (RF), Female NPT Threaded |
Why Global EPC Contractors Choose Jovzi Titanium
Direct from Baoji's High-Tech Industrial Zone: A cohesive ecosystem eliminating intermediary markup and metallurgical uncertainty.
BaoTi Center Validation
Operating in proximity to the National Titanium Quality Center, every batch undergoes chemical cross-checks, tension elongation verification, and ultrasonic flaw detection (UT) according to AMS 2631 standards before shipment.
Precision Die & Ring Rolling
Advanced hydraulic radial forging presses eliminate internal porosity and align the metallurgical grain orientation along tangential stress profiles, providing exceptional burst resistance under cyclic operational pressures.
Rapid Export Logistics
With an export allocation of 81%–90%, we handle worldwide freight clearance, custom fumigated crating, sealed anti-scratch packaging, and rapid air/sea logistics under DDP, CIF, and FOB terms smoothly and reliably.
Procurement Intelligence: Future Market & Tech Trends
Actionable data for supply chain directors balancing life-cycle expenses (LCC), volatile raw material cycles, and industrial energy transformation.
1. Growth in Offshore Green Hydrogen & Desalination
Traditional super-duplex alloys encounter accelerated localized stress-corrosion cracking in high-temperature brine. Global procurement initiatives are shifting directly to ASTM B381 Grade 2 and palladium-stabilized Grade 7 slip-on and blind flanges to ensure a maintenance-free 40-year life-cycle in chlor-alkali and subsea electrolysis loops.
2. Near-Net-Shape Ring Rolling & Raw Material Optimization
Titanium raw billet prices fluctuate with global aerospace demand cycles. Modern engineering procurement prioritizes suppliers utilizing closed-die and near-net radial rolled rings. This cuts scrap material rates down by 35% compared to block turning, significantly lowering unit costs for Class 300+ large-bore weld-neck designs.
3. Digital Traceability & EN 10204 3.1 Serialization
EPC frameworks are moving away from manual, unverified mill paper sheets. Leading procurement programs mandate permanent laser-etched 2D data-matrix QR codes on flange rim peripheries, establishing instant linkage to raw vacuum arc remelting (VAR) heats, ultrasonic testing scans, and chemical composition charts.
4. Hybrid Piping Assemblies via Engineered Lap Joints
Project managers face tight budget constraints. Instead of designing solid Gr5 monolithic assemblies, modern pipelines frequently utilize Grade 2 titanium loose-hub stub ends backed by structural epoxy-coated carbon steel loose flanges (ASME B16.5 Lap Joint), yielding a 50% savings on capital hardware while retaining titanium's full wetted corrosion defense.
Frequently Asked Questions: Technical Sourcing
Comprehensive engineering insights addressing design tolerance, testing specifications, and international standard conformance.
How do ASTM B381 and ASTM B348 differ for titanium flange manufacturing?
Why choose Grade 7 (Ti-Pd) over Grade 2 for chemical flange installations?
What testing verification accompanies titanium flange shipments?
What face surface finishes are applied for ASME B16.5 titanium flanges?
What is the typical lead time and minimum order quantity (MOQ) for custom flange forgings?
Connect Directly with Jovzi Titanium Engineers
Eliminate unnecessary broker expenses. Contact our Baoji engineering headquarters for material selections, project quotes, or custom forge prints. Inquiries receive technical reviews and pricing feedback within 8 working hours.
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