Commercially Pure Titanium Grades Global Equivalents
| Grade | British Specs | US Specs | ASTM Specs | German Specs | French Specs |
|---|---|---|---|---|---|
| Grade 1 | AMS-T-9046B CP4, AMS 4940, MIL-T-9046J CP4 | ASTM B265 Gr1 (sheet/plate), ASTM B337 Gr1 pipe (withdrawn), ASTM B338 Gr1 heat exchange tube, ASTM B348 Gr1 bar, ASTM B367 Gr1 castings, ASTM B381 Gr1 forgings, ASTM F67 Gr1 surgical implant, ASTM F467 Gr1 nuts, ASTM F468 Gr1 bolts | WS 3.7024, WS 3.7025 | T35 | |
| Grade 2 | TA1/TA2/TA3/TA4/TA5, DTD 5073, IMI 125 | AMS-T-9046B CP3, AMS 4902, MIL-T-9046J CP3, AMS 4941, AMS 4942, AMS 4951 (welding wire) | ASTM B265 Gr2, ASTM B337 Gr2 pipe (withdrawn), ASTM B338 Gr2 heat exchange tube, ASTM B348 Gr2 bar, ASTM B367 Gr2 castings, ASTM B381 Gr2 forgings, ASTM F67 Gr2 surgical implant | WS 3.7034, WS 3.7035 | T40, T40 AIR 9182 |
| Grade 3 | MSRR 8608, DTD 5003, DTD 5023 | AMS-T-9046B CP2, AMS 4900, MIL-T-9046J CP2 | ASTM B265 Gr3, ASTM B337 Gr3 pipe (withdrawn), ASTM B338 Gr3 heat exchange tube, ASTM B348 Gr3 bar, ASTM B367 Gr3 castings, ASTM B381 Gr3 forgings, ASTM F67 Gr3 surgical implant | WS 3.7054, WS 3.7055 | T50 |
| Grade 4 | TA6, TA7, TA8, TA9 | AMS-T-9046B CP1, AMS-T-9047A CP70, AMS 4901, AMS 4921, MIL-T-9046J CP1, MIL-T-9047G CP70 | ASTM B265 Gr4, ASTM B337 Gr4 pipe (withdrawn), ASTM B338 Gr4 heat exchange tube, ASTM B348 Gr4 bar, ASTM B367 Gr4 castings, ASTM B381 Gr4 forgings, ASTM F67 Gr4 surgical implant | WS 3.7064, WS 3.7065 | T60 |
| Grade 7 | - | - | ASTM B265 Gr7, ASTM B337 Gr7 pipe (withdrawn), ASTM B338 Gr7 heat exchange tube, ASTM B348 Gr7 bar, ASTM B367 Gr7 castings, ASTM B381 Gr7 forgings | - | - |
| Grade 12 | - | - | ASTM B265 Gr12, ASTM B337 Gr12 pipe (withdrawn), ASTM B338 Gr12 heat exchange tube, ASTM B348 Gr12 bar, ASTM B367 Gr12 castings, ASTM B381 Gr12 forgings | - | - |
Alpha Titanium Alloys Global Equivalents
| Grade | British Specs | US Specs | ASTM Specs | German Specs | French Specs |
|---|---|---|---|---|---|
| Grade 6 (5Al-2.5Sn) | DTD 5083, TA14/TA15/TA16/TA17 (withdrawn) | AMS 4909, 4910, 4924, 4926, 4966, AMS-T-9046B A-1/A-2 (ELI), AMS-T-9047A 5Al-2.5Sn (ELI), MIL-T-9046J A-1/A-2 (ELI) | ASTM B265 Gr6, ASTM B348 Gr6, ASTM B367 Gr6, ASTM B381 Gr6 | WS 3.7114 | T-A5E |
| 8Al-1Mo-1V | - | AMS 4915, 4916, 4972, 6910, AMS-T-9046B A-4, AMS-T-9047A 8Al-1Mo-1V, MIL-T-9046J A-4 | - | WS 3.7134 | T-A8DV |
Alpha-Beta Titanium Alloys Global Equivalents
| Grade | British Specs | US Specs | ASTM Specs | German Specs | French Specs |
|---|---|---|---|---|---|
| Grade 5 (6Al-4V) | TA10/11/12/13/28/56/59, MSRR 8614/8652, AIMS 03/18/001, DTD 5163/5363 | AMS 4907 (ELI), 4911, 4928, 4930/4931 (ELI), 4963/4965/4967, 4985, 4991, 6931/6932, MIL-T-9046J AB-1/AB-2 (ELI) | ASTM B265 Gr5, ASTM B348 Gr5, ASTM B367 Gr5, ASTM B381 Gr5, ASTM F136 Gr5 (implant), ASTM F467 Gr5 nuts, ASTM F468 Gr5 bolts, ASTM F2924-14 powder | WS 3.7164, WS 3.7165 | T-A6V, T-A6VE (ELI) |
| Grade 9 (3Al-2.5V) | - | AMS 4943, 4944, 4945, AMS-T-9046B AB-5, AMS-T-9047A 3Al-2.5V, MIL-T-9046J AB-5 | ASTM B265 Gr9, ASTM B348 Gr9, ASTM B367 Gr9, ASTM B381 Gr9 | - | - |
| 6Al-6V-2Sn | - | AMS 4918, 4971, 4978, 4979, 6935, 6936, AMS-T-9046B AB-3, AMS-T-9047A 6Al-6V-2Sn, MIL-T-9046J AB-3 | - | WS 3.7174 | T-A6V6E2 |
| 6Al-2Sn-4Zr-2Mo | TA18/19/20/25/26/27 (withdrawn) | AMS 4919, 4975, 4981, 6905, AMS-T-9046B AB-4, AMS-T-9047A 6Al-2Sn-4Zr-2Mo, MIL-T-9046J AB-4 | - | WS 3.7144 | T-A6ZR4DE |
| 6Al-7Nb | - | - | ASTM F1295, ISO 5832-11 | - | - |
Key ASTM Specifications for Titanium Products
| Product Form | ASTM Specification |
|---|---|
| Sheet / Plate | ASTM B265 |
| Pipe (seamless/welded) | ASTM B337 (withdrawn – use ASTM B861/B862) |
| Heat Exchange Tube | ASTM B338 |
| Bar | ASTM B348 |
| Castings | ASTM B367 |
| Forgings | ASTM B381 |
| Surgical Implant | ASTM F67 (commercially pure), ASTM F136 (6Al-4V ELI) |
| Nuts | ASTM F467 |
| Bolts | ASTM F468 |
Inspection
| Test | Description |
|---|---|
| Chemical Analysis | Verify grade composition per ASTM |
| Tensile Testing | Confirm strength and elongation |
| Ultrasonic Testing | For seamless products |
| Eddy Current Testing | For welded products |
| Hydrostatic Test | Pressure test |
| PMI Test | Confirm alloy grade |
FAQ
1. Is ASTM B337 still valid for titanium pipe?
No, ASTM B337 is withdrawn and no longer valid. This specification for titanium pipe has been replaced. For seamless titanium pipe, use ASTM B861. For welded titanium pipe, use ASTM B862. ASTM B338 remains active for heat exchanger tubes.
2. What ASTM specification covers Grade 1 titanium for surgical implants?
ASTM F67 Grade 1 is the correct specification for commercially pure titanium surgical implants. Do not use ASTM B338 or ASTM B861 for implant applications as they lack biocompatibility testing requirements. ASTM F136 covers 6Al-4V ELI alloy for higher strength implant applications.
3. What is the German equivalent of ASTM Grade 1 titanium?
The German W.Nr. (Werkstoffnummer) equivalent of ASTM Grade 1 titanium is WS 3.7024 or WS 3.7025. The French equivalent is T35. British specifications include AMS 4940 and MIL-T-9046J CP4. All refer to the same commercially pure titanium with low oxygen and iron content.
4. What is the difference between ASTM F67 and ASTM F136?
ASTM F67 covers commercially pure titanium in Grades 1, 2, 3, and 4 for surgical implants. These grades offer good ductility and corrosion resistance but lower strength. ASTM F136 covers 6Al-4V ELI (extra low interstitial) titanium alloy, which provides much higher strength for load-bearing implants like hip stems.
5. What is the French equivalent of Grade 5 (6Al-4V) titanium?
The French equivalent of standard Grade 5 (6Al-4V) titanium is T-A6V. The ELI (extra low interstitial) version, which is used for surgical implants, is T-A6VE. The German W.Nr. for Grade 5 is WS 3.7164 for aerospace applications or WS 3.7165 for general use.
6. Which titanium specifications have been withdrawn?
ASTM B337 for titanium pipe is withdrawn. Many British specifications are also withdrawn including TA14 through TA17, TA18 through TA20, TA25 through TA27, TA29 through TA37, TA38 through TA44, TA45 through TA51, and TA52 through TA59. Always check current status before ordering.
7. What ASTM specifications cover Grade 9 (3Al-2.5V) titanium?
Grade 9 titanium (3Al-2.5V) is covered by ASTM B265 for sheet and plate, ASTM B348 for bar, ASTM B367 for castings, and ASTM B381 for forgings. US military specifications include AMS 4943, AMS 4944, and MIL-T-9046J AB-5 for this grade.
8. What is the German equivalent of Grade 2 titanium?
The German W.Nr. equivalent of ASTM Grade 2 titanium is WS 3.7034 or WS 3.7035. The French equivalent is T40 or T40 AIR 9182. British specifications include TA1, TA2, DTD 5073, and IMI 125 for this commercially pure grade.
9. Is ASTM B338 still active for titanium tubes?
Yes, ASTM B338 remains fully active and has not been withdrawn. It covers seamless and welded titanium tubes for heat exchangers and condensers in Grades 1, 2, 3, 4, 7, and 12. This is one of the most commonly used specifications for titanium tube orders.
10. What ASTM spec covers Grade 6 (5Al-2.5Sn) titanium?
Grade 6 titanium (5Al-2.5Sn) is an alpha titanium alloy. It is covered by ASTM B265 for sheet and plate, ASTM B348 for bar, ASTM B367 for castings, and ASTM B381 for forgings. The British specification is DTD 5083. German W.Nr. is WS 3.7114.
11. What is the British specification for Grade 1 titanium?
The British and US military specifications for Grade 1 titanium are AMS 4940 and MIL-T-9046J CP4. The specification AMS-T-9046B CP4 is also listed. These cover commercially pure titanium for aerospace and general engineering applications.
