ASTM B381 Titanium and Titanium Alloy Forgings
- Type: Forgings in Rings, Disc, Flat Bar, Round Bar, etc
- F-2, CP Ti-2, W.Nr 3.7025, AFNOR T35, BS 2TA1, GOST VT1-0 (ВТ1-0)
- F-5, Ti-6Al-4V, W.Nr 3.7165, AFNOR T-A6V, BS TA10-13, GOST BT6 (VT6)
- F-7, Ti-0.2Pd, W.Nr 3.7235, BS TA9
- F-12, Ti-0.3Mo-0.8Ni, W.Nr 3.7105
Features
ASTM B381 Titanium and Titanium Alloy Forgings
Chemical Composition (wt. %)
| Element | F-2 | F-5 | F-7 | F-12 |
|---|---|---|---|---|
| N | 0.03 max | 0.05 max | 0.03 max | 0.03 max |
| C | 0.08 max | 0.08 max | 0.08 max | 0.08 max |
| H | 0.015 max | 0.015 max | 0.015 max | 0.015 max |
| Fe | 0.30 max | 0.40 max | 0.30 max | 0.30 max |
| O | 0.25 max | 0.20 max | 0.25 max | 0.25 max |
| Al | – | 5.5–6.75 | – | – |
| V | – | 3.5–4.5 | – | – |
| Pd | – | – | 0.12–0.25 | – |
| Mo | – | – | – | 0.2–0.4 |
| Ni | – | – | – | 0.6–0.9 |
| Ti | Balance | Balance | Balance | Balance |
Mechanical Properties
| Grade | Tensile Strength
(min, ksi [MPa]) |
Yield Strength
(0.2% Offset) (min, ksi [MPa]) |
Elongation
in 4D min (%) |
Reduction of Area
min (%) |
| F-2 | 50 [345] | 40 [275] | 20 | 30 |
| F-5 | 130 [895] | 120 [828] | 10 | 25 |
| F-7 | 50 [345] | 40 [275] | 20 | 30 |
| F-12 | 70 [483] | 50 [345] | 18 | 25 |
Technical Specifications
| Specification | Value |
| Standard | ASTM B381 Titanium and Titanium Alloy Forgings |
| Grade | Grade F-2, F-5, F-7, F-12 |
| Melting Practice | Electron beam and/or plasma melted or shall be multiple-melted with at least one of the melting cycles under vacuum |
| Finish | Descaled, sandblasted, or ground. Machined, Polished, Peeled, Rough Turned |
| Type of Forgings | Bar, Billet, Forgings, Rings, Flanges |
| Shape of Forgings | Round, Flat, Square, Rectangular, Hexagonal, Rings |
| Density | 4.51g/cm³ |
| Dimension | Upon customer’s requirements |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| NDE Tests | UT/ET |
Product Types
Bars: Round, square, rectangular, or hexagonal solid bars with varying diameters and lengths. Used for shafts, axles, and structural components.
Forged Rings: Rings with various diameters and cross-sections. Often used in aerospace and industrial applications.
Disks & Hubs: Circular shapes with varying thicknesses and diameters. Used in rotating machinery and structural components.
Blocks & Flats: Rectangular or square shapes with varying thicknesses and dimensions. They are used for machining into custom shapes or as structural elements.
Forged Shafts: Long, cylindrical shapes with varying diameters and lengths. Used in power transmission and machinery applications.
Custom Shapes: ASTM B381 allows for the production of custom-designed forgings to meet specific requirements.
Shaping Processes
Open Die Forging: Used to create basic shapes like discs, blocks, and shafts.
Closed Die Forging: Used for more complex shapes with tighter tolerances.
Isothermal Forging: Provides superior mechanical properties and complex shapes.
Ring Rolling: Specifically used to produce seamless rings with precise dimensions.
Applications of ASTM B381 Titanium Forgings
Aerospace: Structural components, engine parts, landing gear, and airframes.
Medical: Implants, prosthetics, surgical instruments, and medical devices.
Chemical Processing: Equipment components resistant to corrosion.
Marine: Propellers, shafts, and other seawater-resistant components.
Power Generation: Turbine blades, discs, and other high-temperature components.
Automotive & Motorsports: High-performance parts like connecting rods, valves, and suspension components.
