{"id":3605,"date":"2026-09-16T11:06:22","date_gmt":"2026-09-16T08:06:22","guid":{"rendered":"https:\/\/www.defencemetal.com\/index.php\/en\/ti-grade-5-ti6al4v\/"},"modified":"2026-09-25T16:24:53","modified_gmt":"2026-09-25T13:24:53","slug":"ti-grade-5-ti6al4v","status":"publish","type":"page","link":"https:\/\/www.defencemetal.com\/index.php\/en\/ti-grade-5-ti6al4v\/","title":{"rendered":"Ti Grade 5 \/ (Ti6Al4V)"},"content":{"rendered":"

<\/p>\n

Ti Grade 5 \/ (Ti6Al4V) \/ UNS R56400 \/ AMS 4928 \/ AMS 4911<\/h1>\n
DEFENCE METAL<\/span><\/p>\n
\n
Ti Grade 5 (Ti-6Al-4V)<\/div>\n
UNS R56400 \u00b7 W.Nr. 3.7165 (3.7164 in aerospace quality) \u00b7 ASTM Grade 5 \u00b7 Ti-6Al-4V \u00b7 ALPHA-BETA (two-phase) titanium alloy. ASTM B265 \/ B348 Grade 5 limits: Al 5.5-6.75% \u00b7 V 3.5-4.5% \u00b7 O 0.20% max \u00b7 Fe 0.40% max \u00b7 N 0.05% max \u00b7 C 0.08% max \u00b7 H 0.015% max \u00b7 Y 0.005% max \u00b7 each other element 0.10% max \u00b7 other elements total 0.40% max \u00b7 balance Ti. Density 4.42-4.43 g\/cm3. Beta transus about 995-1000 \u00b0C. Unlike the commercially pure grades (1, 2 and 4) it DOES gain strength by SOLUTION TREATING AND AGEING (STA); this is a genuine heat-treatment hardening.<\/div>\n
\n
Not to be confused with<\/div>\n

AISI 4340<\/a>Ti Grade 2<\/a>Ti Grade 4<\/a>Ti Grade 5 ELI<\/a><\/div>\n<\/div>\n

\n
\n
For what<\/div>\n
It is bought for aerospace structural and engine parts where strength-to-weight ratio and strength at moderate temperature are both required: airframe and wing attachment hardware, landing gear parts, compressor discs and blades, engine mounts, fasteners (bolts and nuts), pressure vessels, rocket\u2026<\/div>\n<\/div>\n
\n
Forms<\/div>\n
Round bar \u00b7 flat bar \u00b7 plate \u00b7 sheet \u00b7 tube \u00b7 forgings. All forms are supplied to order.<\/div>\n<\/div>\n
\n
Standards<\/div>\n
AMS (verified by four or more independent sources): 4911 – sheet, strip and plate, annealed \u00b7 4928 – bars, wire, forgings, rings and drawn shapes, annealed \u00b7 4965 – bars, wire, forgings and rings, SOLUTION HEAT TREATED AND AGED (STA) \u00b7 6931 – bars, forgings and forging stock, annealed. Military equivalents: AMS-T-9046 \/ MIL-T-9046 Type AB-1 (sheet, strip, plate) \u00b7 AMS-T-9047 \/ MIL-T-9047 (bars and reforging stock). ASTM: B265 \/ ASME SB-265 Grade 5 (strip, sheet, plate) \u00b7 B348 \/ ASME SB-348 Grade 5 (bars and billets) \u00b7 B381 Grade F-5 (forgings) \u00b7 F1472 (surgical implants, UNS R56400). Welding: matching ERTi-5 rod to AWS A5.16 \/ ASME SFA-5.16; where toughness is needed, ELI (ERTi-23) or unalloyed filler is also used (TWI).
EVERY AMS NUMBER WAS VERIFIED ONE BY ONE. THOSE THAT BELONG TO GRADE 5: 4911 (sheet\/strip\/plate, annealed – 5 sources) \u00b7 4928 (bars\/wire\/forgings\/rings, annealed – 6 sources) \u00b7 4965 (bars\/wire\/forgings\/rings, solution heat treated and aged – 5 sources) \u00b7 6931\u2026<\/span><\/div>\n<\/div>\n
\n
Advantage<\/div>\n
It is the only common titanium grade that gains strength by heat treatment, and the gain is measurable: in the annealed condition the ASTM B265 \/ B348 minimum yield is 828 MPa (120 ksi), while after solution treating and ageing (STA) the typical yield rises to between 1034 MPa (150 ksi, United\u2026<\/div>\n<\/div>\n
\n
Welding<\/div>\n
Filler metal: matching ERTi-5 rod to AWS A5.16 \/ ASME SFA-5.16. TWI reports that UNALLOYED or ELI filler is used on alpha-beta alloys to raise weld metal ductility, by cutting the amount of beta phase and the interstitial load. PREHEAT IS NOT REQUIRED.<\/div>\n<\/div>\n
\n
Limits<\/div>\n
THE TEMPERATURE CEILING DIVIDES BY SOURCE: Carpenter Technology gives about 350 \u00b0C (660 \u00b0F), TIMET 350 \u00b0C (660 \u00b0F), Aubert & Duval 300 \u00b0C for creep and Granta \/ Titanium Information Group about 400 \u00b0C (750 \u00b0F). NO AVERAGE HAS BEEN TAKEN; a design must state which source’s criterion it uses.<\/div>\n<\/div>\n
REQUEST A QUOTE<\/a>All titanium alloys →<\/a>TECHNICAL DETAILS ↓<\/span><\/div>\n
Compiled from manufacturer data sheets \u00b7 confirm against the current specification before ordering<\/div>\n<\/div>\n<\/div>\n

<\/p>\n