Gr2 Gr7 Gr9 Titanium Blind Flange ASME B16.5
Gr2 Gr7 Gr9 Titanium Blind Flange ASME B16.5
This titanium blind flange is supplied in Grade 2, Grade 7 and Grade 9 as well as Grade 1, Grade 3, Grade 4, Grade 5 and Grade 12, and is produced to ASME/ANSI B16.5, DIN2630 to DIN2633, BS and related standards. Sizes cover 2.5, 3 and 4 inch, with the full range from 1/8 inch to 36 inch available, pressure classes include Class 150 and Class 600 as well as Class 300 to Class 2500, and the flange is forged and CNC machined with FF, RF, TG or RJ face.
Technical Specifications
| Product Type | Blind flange (BLIND, BLRF) |
| Material | Titanium and titanium alloy |
| Grade | Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr12 |
| Standard | ASME/ANSI B16.5, DIN2630 - DIN2633, BS, JIS B2220, GB/T 9116 |
| Size | 2.5, 3, 4 inch; full range 1/8 - 36 inch, NPS 1/2 - NPS 24 (DN10 - DN2000) |
| Pressure Class | 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB |
| DIN Pressure | PN6, PN10, PN16, PN25 through PN250 (PN0.25 - 32 MPa) |
| Flange Surface | FF, RF, TG, RJ |
| Technique | Forged and CNC machined |
| Flange Type | WNRF, SORF, BLIND, SW, PL |
| Working Temperature | -60 C to 250 C |
| Quality Control | Ultrasonic testing and material test report EN10204.3.1 |
| Application | Cars, glass, medical equipment, electronics, petrochemical equipment |
| Certification | ISO9001:2015, SGS, BV, TUV |
Chemical Requirements (wt %)
| Element | Gr1 | Gr2 | Gr5 | Gr7 | Gr9 | Gr12 |
| N max | 0.03 | 0.03 | 0.05 | 0.03 | 0.03 | 0.03 |
| C max | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
| H max | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| Fe max | 0.20 | 0.30 | 0.40 | 0.30 | 0.25 | 0.30 |
| O max | 0.18 | 0.25 | 0.20 | 0.25 | 0.15 | 0.25 |
| Al | - | - | 5.5-6.75 | - | 2.5-3.5 | - |
| V | - | - | 3.5-4.5 | - | 2.0-3.0 | - |
| Pd | - | - | - | 0.12-0.25 | - | - |
| Mo | - | - | - | - | - | 0.2-0.4 |
| Ni | - | - | - | - | - | 0.6-0.9 |
Physical and Mechanical Properties (ASTM B381)
| Grade | Density (g/cm3) | Melting Point | Tensile Strength | Yield Strength | Elongation (%) |
| Titanium Gr2 | 4.5 | 1665 C (3030 F) | 49900 psi / 344 MPa | 39900 psi / 275 MPa | 20 |
| Titanium Gr5 | 4.43 | 1632 C (2970 F) | 138000 psi / 950 MPa | 128000 psi / 880 MPa | 14 |
Applications & Titanium Advantages
Titanium blind flanges are used in cars, glass production, medical equipment, electronics and petrochemical equipment, and wherever a pipeline or vessel end must be closed while staying accessible for inspection. Titanium gives a long service life, resists corrosion and provides high yield and tensile strength at low weight. The forged and CNC machined body keeps accurate dimensions, and the flange can be supplied with FF, RF, TG or RJ faces as well as WNRF, SORF, BLIND, SW and PL types to match an existing line.
Quality, Customization & Inquiry
Flanges are forged and CNC machined under ISO9001:2015 control, with ultrasonic testing and a material test report to EN10204.3.1 available, and third party testing by SGS, BV and TUV accepted. Size, pressure class, face and grade can be customized, monthly supply capacity is 500000 pieces and orders are normally delivered within 12-20 work days. Please send your size, pressure rating, face and grade so that we can prepare a quotation.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.


