High-Precision ASME B16.5 Titanium Flanges | Forged & CNC Machined Gr2 Gr5
Product Overview
Our ASME B16.5 Titanium Flanges are engineered for the most demanding industrial environments. As a professional manufacturer, we utilize advanced forging techniques and high-precision CNC machining to ensure every flange meets strict international standards. Whether you need the excellent corrosion resistance of Grade 2 or the high strength of Grade 5 (Ti-6Al-4V), our flanges provide a leak-proof and durable connection for your critical piping systems.
Key Technical Advantages:
- Superior Material Quality: Sourced from premium titanium sponge, ensuring full traceability with MTC (Material Test Certificate) according to EN 10204 3.1.
- Precision Manufacturing: Our CNC machining process guarantees tight tolerances, perfect surface finish, and precise bolt hole alignment for easy installation.
- Exceptional Durability: Highly resistant to chlorides, seawater, and aggressive chemicals, making them ideal for desalination, chemical processing, and offshore applications.

Technical Specifications
| Standard |
ASME B16.9, ASME B16.5, JIS, EN |
| Material |
Gr1, Gr2, Gr7, N200/201, N6, Inconel600, Monel400, Hastelloy-C276 |
| Size |
NPS1/4-24" (DN10~600) |
| Pressure Rating |
Class 150~1200LBS, PN1.0~4.0MPa |
| Working Temperature |
-60°C to 250°C |
| Surface Treatment |
Forging, rolling, smooth by lathe, polishing |
| Testing |
UT, P/T, etc. |
Chemical Composition Requirements
| Grade |
N |
C |
H |
Fe |
O |
Al |
V |
Pd |
Mo |
Ni |
Ti |
| Gr1 |
0.03 |
0.08 |
0.015 |
0.20 |
0.18 |
/ |
/ |
/ |
/ |
/ |
bal |
| Gr2 |
0.03 |
0.08 |
0.015 |
0.30 |
0.25 |
/ |
/ |
/ |
/ |
/ |
bal |
| Gr5 |
0.05 |
0.08 |
0.015 |
0.40 |
0.20 |
5.5~6.75 |
3.5~4.5 |
/ |
/ |
/ |
bal |
| Gr7 |
0.03 |
0.08 |
0.015 |
0.30 |
0.25 |
/ |
/ |
0.12~0.25 |
/ |
/ |
bal |
| Gr12 |
0.03 |
0.08 |
0.015 |
0.30 |
0.25 |
/ |
/ |
/ |
0.2~0.4 |
0.6~0.9 |
bal |
Available Standards and Types
We offer a comprehensive range of titanium flanges beyond ASME B16.5, including JIS, DIN, and EN standards. Our production line covers:
- Flange Types: Slip-on (SORF), Welding Neck (WNRF), Blind (BLRF), Socket Weld, and Threaded Flanges.
- Pressure Ratings: Class 150, 300, 600, 900, 1500, and 2500.
- Surface Treatment: Pickling, Sandblasting, or Polished finish based on your project requirements.
Why Choose Metalstitanium?
- 100% Ultrasonic Testing (UT): Every forged flange undergoes internal flaw detection to eliminate any risk of structural weakness.
- Custom Solutions: We support customized dimensions and special alloys like Grade 7 (Ti-Pd) and Grade 12 for specific anti-corrosion needs.
- Export-Grade Packaging: All flanges are packed in reinforced plywood cases to prevent any scratches or damage during international transit.
Frequently Asked Questions (FAQ)
- Q: What is the lead time for custom ASME B16.5 titanium flanges?
- A: Typically, we can complete production within 10-20 days depending on the quantity and specific Grade requirements.
- Q: Can you provide third-party inspections?
- A: Yes, we support inspections by SGS, BV, or TUV to verify the chemical composition and mechanical properties of our titanium products.
- Q: Why use titanium flanges instead of stainless steel?
- A: Titanium offers a much higher strength-to-weight ratio and superior resistance to localized corrosion (pitting and crevice corrosion) in chloride-rich environments where stainless steel often fails.