Corrosion Resistant TI · Near-Alpha Titanium
Titanium Grade 12
Titanium Grade 12 is a corrosion resistant titanium — corrosion-resistant ti-mo-ni. Typical values: 345 MPa yield, 4.5 g/cm³, rated to 425 °C. Available for CNC machining, Sheet metal at FabDigit.
Properties
Typical room-temperature values in the O (annealed) condition. Metric first, imperial in gray. The bars show where Grade 12 sits against the other 14 titanium grades in the catalog.
Datasheet
| Yield strength | 345 MPa50 ksi |
|---|---|
| Tensile strength | 480 MPa70 ksi |
| Hardness | 200 HB |
| Density | 4.5 g/cm³0.163 lb/in³ |
| Specific strength (yield ÷ density) | 77 |
| Min service temp | -250 °C-418 °F |
| Max service temp | 425 °C797 °F |
| Electrical conductivity | 3.4 % IACS2 MS/m |
| Machinability | Fair40 / 100 |
| Weldability | Very good75 / 100 |
| Formability | Very good75 / 100 |
| ISO 513 machining group | S |
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Against other titanium grades
Strength versus weight in the titanium family
Yield strength against density for every titanium grade FabDigit runs. Grade 12 is highlighted; hover a dot for its name, or open the interactive family chart.
Manufacturability
The process limits FabDigit's quote engine applies to Grade 12. Design inside these and the part quotes instantly; outside them it routes to an engineer.
CNC machining
| Machinability | Fair40 / 100 |
|---|---|
| ISO material group | S.3 |
| Cutting speed (rough / finish) | 60 / 75 m/min |
| Minimum wall | 1 mm |
| Minimum internal radius | 1.5 mm |
| Drill depth limit | 4× diameter |
| Best surface (machined / polished) | Ra 1.6 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Better75 / 100 |
|---|---|
| Weldability | Better75 / 100 |
Conditions and tempers
How Grade 12 is supplied and what each state is for. The default is what FabDigit quotes unless your drawing says otherwise.
| Condition | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
ODefault Annealed (O) | Softest — parts you will bend or deep-form; not for carrying load | — | — | — | — |
Heat treatment and post-processing
Operations FabDigit's suppliers routinely run on Grade 12, ranked by how often they make sense for this grade.
Heat treatment
| Solution Treat + Age (Ti) | Ti-6Al-4V to peak strength |
|---|---|
| Full Anneal | Restore ductility; relieve residual stress; coarsen grain |
| Stress Relief | Reduce residual stress without changing structure |
| Hot Isostatic Press (HIP) | Eliminate porosity in cast / 3DP parts |
Post-processing
| Manual Deburr | Deburrstandard |
|---|---|
| Edge Break (0.5mm) | Deburr |
| Passivate (Citric) | Passivation |
| Shot Peen | Blast |
| Electropolish | Polish |
| Glass Bead Blast | Blast |
| CMM Inspection | Inspection |
| FAI Report | Inspection |
| Individual Bag | Packaging |
Surface finishes for Grade 12
Coatings and treatments compatible with titanium on the processes Grade 12 runs on. Pick them in the quote configurator or call them out on the drawing.
Passivation
- Electropolishing
Conversion Coating
- Anodizing Type II
PVD Coating
- AlCrN
- AlTiN
- CrN
- DLC
- MoS2
- TiAlN
- TiB2
- TiCN
- TiN
- WC/C
- ZrN
Organic Coating
- Cerakote
CVD Coating
- CVD Al2O3
- CVD TiCN
- CVD TiN
- Multilayer CVD
Marking / Decoration
- Chemical Etching
- Dot Peen Marking
- Electro-chemical Etching
- Embossing / Debossing
- Ink Stamping
- Laser Marking
- Mechanical Engraving
- Steel Stamping
- Vibro Engraving / Scribing
Thermal Spray
- HVOF Coating
- Plasma Spray
Equivalent designations
Standards and trade names that resolve to Titanium Grade 12 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- R53400
- Trade names
- Ti-Mo-Ni
- Other
- Ti-0.3Mo-0.8Ni
Stock forms
Raw-material forms FabDigit sources Grade 12 in.
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.