Titanium Flange Specifications
Titanium flanges are commonly manufactured from commercially pure titanium (Grade 1, Grade 2) or titanium alloys such as Grade 5 (Ti-6Al-4V). The exact specification depends on the pressure, temperature, corrosion environment, and connection type.
| Item | Typical Specification |
|---|---|
| Material | Titanium Grade 1, Grade 2, Grade 5, Grade 7, Grade 12 |
| Common material standards | ASTM B381, ASTM B348, ASME SB381 |
| Flange standards | ASME B16.5, ASME B16.47, EN 1092-1, DIN standards |
| Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint |
| Nominal size | NPS 1/2"–24" or customized |
| Pressure class | Class 150, 300, 600, 900, 1500, 2500 |
| Metric pressure rating | PN6, PN10, PN16, PN25, PN40, etc. |
| Manufacturing | Forging, machining, casting, or customized fabrication |
| Face type | RF, FF, RTJ, Tongue & Groove, customized |
| Surface finish | Machined, polished, pickled, or customized |
| Connection | Bolted, welded, or threaded |
| Gasket compatibility | PTFE, graphite, spiral wound, rubber, etc. |
| Dimensions | According to applicable standard or customer drawings |
Common Titanium Grades
Titanium Grade 1: Excellent ductility and corrosion resistance; suitable for chemical processing and heat exchangers.
Titanium Grade 2: Higher strength than Grade 1 while maintaining excellent corrosion resistance; one of the most commonly used grades.
Titanium Grade 5 (Ti-6Al-4V): High strength-to-weight ratio; commonly used for demanding industrial and aerospace applications.
Titanium Grade 7: Excellent corrosion resistance, particularly in reducing environments.
Titanium Grade 12: Good strength and corrosion resistance, suitable for chemical and marine applications.
Key Dimensions
For a titanium flange, the specification normally includes:
Outside Diameter (OD) × Inside Diameter (ID) × Flange Thickness × Bolt Circle Diameter (BCD) × Number of Bolt Holes × Bolt Hole Diameter.
For example, a purchase specification could be:
Titanium Grade 2 Blind Flange, ASME B16.5, NPS 4", Class 150, RF, ASTM B381, customized machining and surface finish.
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If customers require titanium flange they are welcome to contact our sales team directly for further information, quotations, or technical support by sending an email to sale@cntitaniumtop.com, and our team will respond promptly to assist with their requirements.