ASTM B381 Gr 2 F2 Titanium Weld Neck Flange ASME B16.5 UNS R50400 Flange
We are a professional manufacturer of ASTM B381 Gr 2 Titanium Weld Neck Flange ASME B16.5 TA2 Titanium Flanges in China.
The ASTM B381 Gr 2 flange is a product made from Grade 2 titanium, conforming to ASTM B381, a specification covering titanium and titanium alloy forgings for various industrial applications.
UNS (R50400) is “unalloyed” titanium offering an excellent balance of strength and ductility.
Gr 2 titanium flange offers excellent acid and alkali resistance, corrosion resistance, high temperature and good ductility.
asme-sb-381Standard Specification for Titanium and Titanium Alloy Forgings
This specification covers 39 grades of annealed titanium and titanium alloy forgings as follows:
1.1.1 Grade F-1—UNS R50250. Unalloyed titanium,
1.1.2 Grade F-2—UNS R50400. Unalloyed titanium,
1.1.2.1 Grade F-2H—UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),
Gr2 Titanium flange Equivalent Material
| Type | ASTM | JIS | GOST | DIN | GB |
| Commercial pure | UNS R50400 | TP340 | BT1-0 | 3.7035 | TA2 |
Gr2 Titanium flange Chemical Composition, %, Max
| C | Fe | H | N | O | Ti |
| 0.08 | 0.30 | 0.015 | 0.05 | 0.02 | BALANCE |
Gr2 Titanium flange Mechanical Properties
| Tensile strength, min | Yield strength, 0.2% offset, min, Mpa | Elongation at Break, % | Hardness |
| 345 MPa | 275 MPa | 20 | 160-200 HV |
Flanges Types of ASTM B381 Gr 2 Flanges:
- Weld Neck Flanges
- Slip-On Flanges
- Blind Flanges
- Threaded Flanges
- Socket Weld Flanges
- Lap Joint Flanges
ASTM B381 Gr 2 Flanges specification:
Grades: Commercial Pure Grade2
Size: 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Class: 150#, 300#, 825#, 900#, 1500# & 2500#
Flange type: Blind, Threaded, Socket welding, Slip-on, Lapped (lap joint), Weld neck
Face type: Flat Face, Raised Face, Male and Female Face, Tongue and Groove Face, Ring Joint Fac
Applications of ASTM B381 Gr 2 Flanges
- Aerospace: Aircraft components and jet engine parts.
- Chemical Processing: Heat exchangers, piping, and reactors due to its resistance to aggressive chemicals.
- Marine Applications: Propeller shafts, offshore platforms, and ship components.
