|
Alloy Composition
(ASTM Grade)
[Common Name]
|
Alloy Description
|
Available
Product Forms
|
Typical
Applications
|
| Commercially Pure (Unalloyed) Ti Grades |
|
Ti Grade
1
|
Lower strength,
softest, unalloyed Ti grade with highest ductility, cold formability,
and impact toughness, with excellent resistance to mildly reducing to
highly oxidizing media with or without chlorides and high weldability.
|
Ingot/Bloom,
Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire*
|
AC, CG, CP,
DS, HE, HR, FP, MI, PB, NS
|
| Ti Grade
2 |
Moderate strength
unalloyed Ti with excellent weldability, cold formability, and fabricability;
"workhorse" and "garden variety" Ti grade for industrial
service with excellent resistance to mildly reducing to highly oxidizing
media with or without chlorides. Approved for sour service use under the
NACE MR-01-75 Standard.
|
Ingot/Bloom,
Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Seamless Tubing*,
Wire*, Foil*
|
AC, AD, AP,
AR, CG, CP, DS, FP, HE HR, MI, NS, PB, PP, OP, SR
|
| Ti Grade
3 |
Slightly stronger
version of Gr. 2 Ti with similar corrosion resistance with good weldability
and reasonable cold formability/ductility.
|
Ingot/Bloom,
Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe
|
CP, NS, PP
|
| Ti Grade
4 |
Much stronger, high
interstitial version of Grades 2 and 3 Ti with reasonable weldability, and
reduced ductility and cold-formability. |
Ingot/Bloom, Bar*,
Billet, Plate, Strip |
AC, AD, CP |
| Commercially
Pure Grades Modified with Pd or Ru |
| Ti-0.15Pd
[Ti-Pd] |
(Grade
7)
|
|
Most resistant Ti
alloy to corrosion in reducing acids and localized attack in hot halide
media, with physical, mechanical, formability properties equivalent to Gr.
2 Ti, and excellent weldability/fabricability. |
Ingot/Bloom,
Bar*, Billet, Plate, Strip, Tubing, Welded Pipe, Wire* |
AC, AP, CP, DS, HE,
PB |
|
|
Most resistant Ti
alloy to corrosion in reducing acids and localized attack in hot halide
media, with physical, mechanical, formability properties equivalent to Gr.
1 Ti (soft grade) and excellent weldability. |
Ingot/Bloom, Bar*,
Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* |
AC, CP, DS, HE, HR,
PB |
|
|
Lower cost, leaner
Pd version of Ti Gr. 7 with equivalent physical/mechanical properties, and
similar corrosion resistance. Tubing, Welded Pipe |
Ingot/Bloom, Bar*,
Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* |
AC, AP, CP, DS, HE,
HR, PB |
|
|
Lower cost, leaner
Pd version of Ti Gr. 11 with equivalent physical/mechanical properties and
fabricability (soft grade) and similar corrosion resistance. Tubing, Welded
Pipe |
Ingot/Bloom, Bar*,
Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* |
AC, CP, DS, HE, HR,
PB |
Ti-0.1Ru
[TiRu-26®] |
(Grade
26)
|
|
Lower cost, Ru-containing
alternative for Ti Gr. 7 with equivalent physical/mechanical properties
and fabricability and similar corrosion resistance. Tubing, Welded Pipe |
Ingot/Bloom, Bar*,
Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* |
AC, AP, CP, DS, HE,
HR, PB |
Ti-0.1Ru
[TiRu-27®] |
(Grade
27) |
|
Lower cost, Ru-containing
alternative for Ti Gr. 11 with equivalent physical/mechanical properties
(soft grade) and fabricability and similar corrosion resistance. |
Ingot/Bloom, Bar*,
Billet, Plate, Strip, Welded Tubing, Welded Pipe |
AC, CP, DS, HE, HR,
PB |
| Alpha
and Near-Alpha Alloys |
Ti-0.3Mo-0.8Ni
[Ti-12] |
(Grade
12)
|
|
Highly weldable
and fabricable Ti alloy offering improved strength and pressure code design
allowables, hot brine crevice corrosion, and reducing acid resistance compared
to Ti Grades 1, 2, and 3. Approved for sour service use under the NACE MR-01-75
Standard. |
Ingot/Bloom, Billet,
Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe, Wire* |
CP, DS, GB, HE, HR,
OP |
Ti-3Al-2.5V
[Ti-3-2.5] |
(Grade
9)
|
|
Medium strength,
non-ageable Ti alloy offering highest strength and design allowables under
the pressure vessel code, with good weldability and cold fabricability for
mildly reducing to mildly oxidizing media. |
Ingot/Bloom, Billet,
Welded Pipe, Plate, Strip, Welded Tubing, Foil* Seamless Tubing*, Wire*
|
AD, CG, NS, SR |
Ti-3Al-2.5V-Pd
[Ti-3-2.5-Pd]
|
(Grade
18)
|
|
Pd-enhanced version
of Ti-3Al-2.5V with equivalent physical and mechanical properties and fabricability,
offering elevated resistance to dilute reducing acids and crevice corrosion
in hot halide (brine) media. |
Ingot/Bloom, Billet,
Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe |
CP, GB, HE, OP, PD |
Ti-3Al-2.5V-Ru
[Ti-3-2.5-Ru] |
(Grade
28)
|
|
Ru-enhanced version
of Ti-3Al-2.5V with equivalent physical and mechanical properties and fabricability,
offering elevated resistance to dilute reducing acids and crevice corrosion
in hot halide (brine) media. Approved for sour service use under the NACE
MR-01-75 Standard. |
Ingot/Bloom, Billet,
Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe, Wire* |
CP, GB, HE, OP, PD
|
Ti-5Al-2.5Sn
[Ti-5-2.5] |
(Grade
6)
|
|
Weldable, non-ageable,
high-strength alloy offering good high temperature stability, strength,
oxidation and creep resistance. |
Ingot/Bloom, Bar*,
Billet, Sheet |
GT |
Ti-5Al-2.5Sn
ELI
[Ti-5-2.5 ELI] |
|
|
Extra low interstitial
version of Ti-5Al-2.5Sn exhibiting an excellent combination of toughness
and strength at cryogenic temperatures; suited for cryogenic vessels for
service as low as -255°C. |
Ingot/Bloom, Bar*,
Billet, |
SS |
|
|
Highly creep-resistant,
non-ageable, weldable, high-strength Ti alloy for use up to 455°C;
exhibiting the lowest density and highest modulus of all commercial Ti alloys.
|
Ingot/Bloom, Bar*,
Billet, Sheet |
GT |
Ti-6Al-2Sn-4Zr-2Mo-0.1Si
[Ti-6-2-4-2-S] |
|
|
Weldable, high
strength Ti alloy offering excellent strength, stability, and creep resistance
to temperatures as high as 550°C.
|
Ingot/Bloom,
Bar*, Billet, Sheet
|
AF, AU, GT
|
| |
|
Alloy Composition
(ASTM Grade)
[Common Name]
|
Alloy Description
|
Available
Product Forms
|
Typical
Applications
|
|
Alph-Beta Alloys |
Ti-6Al-4V
[Ti-6-4] |
(Grade
5)
|
|
Heat treatable,
high-strength, most commercially available Ti alloy ("workhorse"
alloy for aerospace applications),
for use up to 400°C offering an excellent combination of high strength,
toughness, and ductility along with good weldability and fabricability.
|
Ingot/Bloom, Bar*,
Billet, Plate, Sheet, Seamless Pipe, Wire*, Seamless
Tubing*, Foil* |
AD, AF, AU, BA, CG,
GT, HE, LG, NS, PD, SR, SS |
Ti-6Al-4V
ELI
[Ti-6-4 ELI] |
(Grade
23)
|
|
Extra low interstitial
version of Ti-6Al-4V offering improved ductility and fracture toughness
in air and saltwater environments, along with excellent toughness, strength,
and ductility in cryogenic service as low as -255°C. Typically used
in a non-aged condition for maximum toughness. |
Ingot/Bloom, Bar*,
Billet, Plate, Sheet, Wire*, Seamless Tubing*, Foil* |
AF, MI, BA, NS, OP,
SS |
Ti-6Al-4V-0.1Ru
[Ti-6-4-Ru] |
(Grade
29)
|
|
Extra low interstitial,
Ru-containing version of Ti-6Al-4V offering improved fracture toughness
in air, seawater, and brines, along with resistance to localized corrosion
in sweet and sour acidic brines as high as 330°C. Approved for sour
service use under the NACE MR-01-75 Standard. |
Ingot/Bloom, Bar*,
Billet, Plate, Sheet, Seamless Pipe, Wire* |
CP, DS, GB, OP, PD |
|
|
High strength Ti
alloy with good toughness and ductility, used primarily for medical
implants stemming from its excellent biocompatibility. |
Ingot/Bloom, Bar*,
Billet, Wire* |
MI |
|
|
Heat-treatable,
high-strength Ti alloy with higher strength and section hardenability than
Ti-6Al-4V, but with lower toughness and ductility, and limited weldability.
Can be used in mill annealed or in the aged (very high strength)
condition. |
Ingot/Bloom, Bar*,
Billet, Plate, Sheet |
AF |
Ti-6Al-2Sn-4Zr-6Mo
[Ti-6-2-4-6]
|
|
|
Heat-treatable, deep-hardenable,
very high strength Ti alloy with improved strength
to temperatures as high as 450°C, with limited weldability. Approved
for sour service under
the NACE MR-01-75 Standard.
|
Ingot/Bloom, Bar*,
Billet |
GT |
Ti-4Al-4Mo-2Sn-0.5Si
[Ti-550] |
|
|
Heat-treatable,
high strength forging alloy with good strength and creep resistance
to temperatures as high as 400°C. |
Ingot/Bloom, Bar*,
Billet |
GT |
Ti-6Al-2Sn-2Zr-2Mo-2Cr-0.15Si
[Ti-6-22-22] |
|
|
Heat-treatable,
high strength Ti alloy with strength and fracture toughness-to-strength
properties superior to those of Ti-6Al-4V, with excellent superplastic
formability and thermal stability. |
Ingot/Bloom, Bar*,
Billet, Plate, Sheet, Wire* |
AF, SS |
Ti-4.5Al-3V-2Mo-2Fe
[SP-700]
|
|
|
Heat-treatable,
high strength Ti alloy with superior strength and exceptional hot and superplastic
formability compared to Ti-6Al-4V, combined with good ductility
and fatigue resistance. |
Ingot/Bloom, Bar*,
Billet, Plate, Sheet |
AF, CG, GT, SR, SS
|
Ti-5Al-4Cr-4Mo-2Sn-2Zr
[Ti-17] |
|
|
Heat-treatable,
deep section hardenable, very high strength Ti alloy with superior
strength and creep resistance over Ti-6Al-4V to temperatures as high
as 400°C, and limited weldability. |
Ingot/Bloom, Bar*,
Billet |
GT |
|
Near-Beta and Beta Alloys |
Ti-10V-2Fe-3Al
[Ti-10-2-3] |
|
|
Heat-treatable,
deep hardenable, very high strength Ti alloy possessing superior fatigue
and strength/toughness combinations, with exceptional hot-die
forgeability, but limited weldability. |
Ingot/Bloom, Bar*,
Billet |
AF, LG |
Ti-3Al-8V-6Cr-4Zr-4Mo
[Ti Beta-C] |
(Grade
19) |
|
A heat-treatable,
deep section hardenable, very high strength Ti alloy possessing
good toughness/strength properties, low elastic modulus and elevated
resistance to stress and localized corrosion in high temperature sweet
and sour brines. Approved for sour service under the NACE
MR-01-75 Standard. |
Ingot/Bloom, Bar*,
Billet, Seamless Pipe, Wire* |
GB, LG, NS, PD, SS |
Ti-3Al-8V-6Cr-4Zr-
4Mo-0.05Pd
[Ti Beta-C/Pd] |
(Grade
20)
|
|
A Pd-containing
version of the Ti-38644 alloy (Beta-C/Pd) possessing equivalent
physical/mechanical properties, but with significantly enhanced resistance
to stress and localized corrosion in high temperature brines. |
Ingot/Bloom, Bar*,
Billet, Seamless Pipe |
GB, NS, PD |
