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ASTM B348 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM B348 specification covers annealed titanium and titanium alloy bars and billets as follows:

Grade 1-UNS R50250. Unalloyed titanium,
Grade 2-UNS R50400. Unalloyed titanium,
Grade 2H-UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),
Grade 3-UNS R50550. Unalloyed titanium,
Grade 4-UNS R50700. Unalloyed titanium,
Grade 5-UNS R56400. Titanium alloy (6 % aluminum, 4 % vanadium),
Grade 6-UNS R54520. Titanium alloy (5 % aluminum, 2.5 % tin),
Grade 7-UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium,
Grade 7H-UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi (400 MPa) minimum UTS),
Grade 9-UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),
Grade 11-UNS R52250. Unalloyed titanium plus 0.12 to 0.25 % palladium,
Grade 12-UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),
Grade 13-UNS R53413. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
Grade 14-UNS R53414. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
Grade 15-UNS R53415. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
Grade 16-UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,
Grade 16H-UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladiumm (Grade 16 with 58 (400 MPa) ksi minimum UTS),
Grade 17-UNS R52252. Unalloyed titanium plus 0.04 to 0.08 % palladium,
Grade 18-UNS R56322. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium,
Grade 19-UNS R58640. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),
Grade 20-UNS R58645. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 %-0.08 % palladium,
Grade 21-UNS R58210. Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon), 1.1.20 Grade 23-UNS R56407. Titanium alloy (6 % aluminum, 4 % vanadium with extra low interstitial elements, ELI),
Grade 24-UNS R56405. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium,
Grade 25-UNS R56403. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 % to 0.8 % nickel and 0.04 % to 0.08 % palladium,
Grade 26-UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,
Grade 26H-UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi (400 MPa) minimum UTS),
Grade 27-UNS R52254. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,
Grade 28-UNS R56323. Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.08-0.14 % ruthenium),
Grade 29-UNS R56404. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08 to 0.14 % ruthenium),
Grade 30-UNS R53530. Titanium alloy (0.3 % cobalt, 0.05 % palladium),
Grade 31-UNS R53532. Titanium alloy (0.3 % cobalt, 0.05 % palladium),
Grade 32-UNS R55111. Titanium alloy (5 % aluminum, 1 % tin, 1 % zirconium, 1 % vanadium, 0.8 % molybdenum),
Grade 33-UNS R53442. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
Grade 34-UNS R53445. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
Grade 35-UNS R56340. Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),
Grade 36-UNS R58450. Titanium alloy (45 % niobium),
Grade 37-UNS R52815. Titanium alloy (1.5 % aluminum), and
Grade 38-UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron).

Related Specifications of ASTM B348

ASTM B348 Chemical Composition

Grade UNS Number C max O max N max. H max. Fe max. Al max. V max. Pd max. Ru max. Ni Mo Cr C Zr Nb Sn Si Other Elements,
max. each		 Other Elements,
max. total
ASTM B348 Grade 1 R50250 0.08 0.18 0.03 0.015 0.20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 2/2H R50400 0.08 0.25 0.03 0.015 0.30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 3 R50550 0.08 0.35 0.05 0.015 0.30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 4 R50700 0.08 0.40 0.05 0.015 0.50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 5 R56400 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 6 R54520 0.08 0.20 0.03 0.015 0.50 4.0-6.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0-3 . . . 0.1 0.4
ASTM B348 Grade 7/7H R52400 0.08 0.25 0.03 0.015 0.30 . . . . . . 0.12-0.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 9 R56320 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 11 R52250 0.08 0.18 0.03 0.015 0.20 . . . . . . 0.12-0.25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 12 R53400 0.08 0.25 0.03 0.015 0.30 . . . . . . . . . . . . 0.6-0.9 0.2-0.4 . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 13 R53413 0.08 0.10 0.03 0.015 0.20 . . . . . . . . . 0.04-0.06 0.4-0.6 . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 14 R53414 0.08 0.15 0.03 0.015 0.30 . . . . . . . . . 0.04-0.06 0.04-0.06 . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 15 R53415 0.08 0.25 0.05 0.015 0.30 . . . . . . . . . 0.04-0.06 0.04-0.06 . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 16/16H R52402 0.08 0.25 0.03 0.015 0.30 . . . . . . 0.04-0.08 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 17 R52252 0.08 0.18 0.03 0.015 0.20 . . . . . . 0.04-0.08 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 18 R56322 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 0.04-0.08 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 19 R58640 0.05 0.12 0.03 0.02 0.30 3.0-4.0 7.5-8.5 . . . . . . . . . 3.5-4.5 5.5-6.5 . . . 3.5-4.5 . . . . . . . . . 0.2 0.4
ASTM B348 Grade 20 R58645 0.05 0.12 0.03 0.020 0.30 3.0-4.0 7.5-8.5 0.04-0.08 . . . . . . 3.5-4.5 5.5-6.5 . . . 3.5-4.5 . . . . . . . . . 0.2 0.4
ASTM B348 Grade 21 R58210 0.05 0.17 0.03 0.015 0.40 2.5-3.5 . . . . . . . . . . . . 2.5-3.5 . . . . . . . . . 2.2-3.2 . . . 0.15-0.25 0.1 0.4
ASTM B348 Grade 23 R56407 0.08 0.13 0.03 0.0125 0.25 5.5-6.5 3.5-4.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 24 R56405 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5 0.04-0.08 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 25 R56403 0.08 0.20 0.05 0.015 0.40 5.5-6.75 3.5-4.5 0.04-0.08 . . . 0.3-0.8 . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 26/26H R52404 0.08 0.25 0.03 0.015 0.30 . . . . . . . . . 0.08-0.14 . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 27 R52254 0.08 0.18 0.03 0.015 0.20 . . . . . . . . . 0.08-0.14 . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 28 R56323 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 . . . 0.08-0.14 . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 29 R56404 0.08 0.13 0.03 0.0125 0.25 5.5-6.5 3.5-4.5 . . . 0.08-0.14 . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 30 R53530 0.08 0.25 0.03 0.015 0.30 . . . . . . 0.04-0.08 . . . . . . . . . . . . 0.20-0.80 . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 31 R53532 0.08 0.35 0.05 0.015 0.30 . . . . . . 0.04-0.08 . . . . . . . . . . . . 0.20-0.80 . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 32 R55111 0.08 0.11 0.03 0.015 0.25 4.5-5.5 0.6-1.4 . . . . . . . . . 0.6-1.2 . . . . . . 0.6-1.4 . . . 0.6-1.4 0.6-1.4 0.1 0.4
ASTM B348 Grade 33 R53442 0.08 0.25 0.03 0.015 0.30 . . . . . . 0.01-0.02 0.02-0.04 0.35-0.55 . . . 0.1-0.2 . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 34 R53445 0.08 0.35 0.05 0.015 0.30 . . . . . . 0.01-0.02 0.02-0.04 0.35-0.55 . . . 0.1-0.2 . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 35 R56340 0.08 0.25 0.05 0.015 0.20-0.80 1.1-2.1 1.1-2.1 . . . . . . . . . 1.5-2.5 . . . . . . . . . . . . . . . 0.20-0.40 0.1 0.4
ASTM B348 Grade 36 R58450 0.04 0.16 0.03 0.015 0.03 . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.0-47.0 . . . . . . 0.1 0.4
ASTM B348 Grade 37 R52815 0.08 0.25 0.03 0.015 0.30 1.0-2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4
ASTM B348 Grade 38 R54250 0.08 0.20-0.30 0.03 0.015 1.2-1.8 3.5-4.5 2.0-3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 0.4

ASTM B348 Mechanical Requirements

Grade Tensile Strength, min Yield Strength (0.2 % Offset) min or range Elongation in 4D, min, % Reduction of Area, min %
ksi MPa ksi MPa
ASTM B348 Grade 1 35 240 20 138 24 30
ASTM B348 Grade 2 50 345 40 275 20 30
ASTM B348 Grade 2HB,C 58 400 40 275 20 30
ASTM B348 Grade 3 65 450 55 380 18 30
ASTM B348 Grade 4 80 550 70 483 15 25
ASTM B348 Grade 5 130 895 120 828 10 25
ASTM B348 Grade 6 120 828 115 795 10 25
ASTM B348 Grade 7 50 345 40 275 20 30
ASTM B348 Grade 7HB,C 58 400 40 275 20 30
ASTM B348 Grade 9 90 620 70 483 15 25
ASTM B348 Grade 9D 90 620 70 483 12 25
ASTM B348 Grade 11 35 240 20 138 24 30
ASTM B348 Grade 12 70 483 50 345 18 25
ASTM B348 Grade 13 40 275 25 170 24 30
ASTM B348 Grade 14 60 410 40 275 20 30
ASTM B348 Grade 15 70 483 55 380 18 25
ASTM B348 Grade 16 50 345 40 275 20 30
ASTM B348 Grade 16HB,C 58 400 40 275 20 30
ASTM B348 Grade 17 35 240 20 138 24 30
ASTM B348 Grade 18 90 620 70 483 15 25
ASTM B348 Grade 18D 90 620 70 483 12 20
ASTM B348 Grade 19E 115 793 110 759 15 25
ASTM B348 Grade 19F 135 930 130 to 159 897 to 1096 10 20
ASTM B348 Grade 19G 165 1138 160 to 185 1104 to 1276 5 20
ASTM B348 Grade 20E 115 793 110 759 15 25
ASTM B348 Grade 20F 135 930 130 to 159 897 to 1096 10 20
ASTM B348 Grade 20G 165 1138 160 to 185 1104 to 1276 5 20
ASTM B348 Grade 21E 115 793 110 759 15 35
ASTM B348 Grade 21F 140 966 130 to 159 897 to 1096 10 30
ASTM B348 Grade 21G 170 1172 160 to 185 1104 to 1276 8 20
ASTM B348 Grade 23 120 828 110 759 10 15
ASTM B348 Grade 23D 120 828 110 759 7.5H , 6.0I 25
ASTM B348 Grade 24 130 895 120 828 10 25
ASTM B348 Grade 25 130 895 120 828 10 25
ASTM B348 Grade 26 50 345 40 275 20 30
ASTM B348 Grade 26HB,C 58 400 40 275 20 30
ASTM B348 Grade 27 35 240 20 138 24 30
ASTM B348 Grade 28 90 620 70 483 15 25
ASTM B348 Grade 28D 90 620 70 483 12 20
ASTM B348 Grade 29 120 828 110 759 10 25
ASTM B348 Grade 29D 120 828 110 759 7.5H , 6.0I 15
ASTM B348 Grade 30 50 345 40 275 20 30
ASTM B348 Grade 31 65 450 55 380 18 30
ASTM B348 Grade 32 100 689 85 586 10 25
ASTM B348 Grade 33 50 345 40 275 20 30
ASTM B348 Grade 34 65 450 55 380 18 30
ASTM B348 Grade 35 130 895 120 828 5 20
ASTM B348 Grade 36 65 450 60 to 95 410 to 655 10 ...
ASTM B348 Grade 37 50 345 31 215 20 30
ASTM B348 Grade 38 130 895 115 794 10 25

ASTM B348 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103