8 - 150
BOLTS, WELDS, AND CONNECTED ELEMENTS
Table 8-36 (cont.). Prequalified Welded Joints Partial-Joint-Penetration Groove Welds Single-bevel-groove weld (4) Butt joint (B) T-joint (T) Corner joint (C)
Welding Process
Joint Designation
SMAW
BTC-P4
GMAW FCAW
BTC-P4-GF
SAW
TC-P4-S
Base Groove Preparation Metal Thickness Tolerances (U = unlimited) Root Opening Root Face As As Fit T1 T2 Groove Angle Detailed Up U
1 ⁄4
7 ⁄16
U
U
min
min
U
R=0 f = 1 ⁄8 min α = 45°°
+1 ⁄16 , − 0 unlimited +10°°, − 0°°
+1 ⁄8 , − 1 ⁄16
R=0 f = 1 ⁄8 min α = 45°°
+1 ⁄16 , − 0 unlimited* +10°°, − 0°°
+1 ⁄8 , − 1 ⁄16
R=0 f = 1 ⁄4 min α = 60°°
±0 +u, −0 +10°°, − 0°°
+1 ⁄16 , − 0
Permitted Welding Positions
Effective Throat (E)
All
S − 1⁄8
B, E, J2, Q2, V
F, H V, OH
S
S − 1 ⁄8
A, B, E, J2, Q2, V
F
S
Permitted Welding Positions
Effective Throat (E)
All
(S − 1 ⁄8 ) − 1 ⁄4
E, J2, L, Mp, Q2, V
All
(S 1 + S 2 )
A, E, J2, L, Mp, Q2, V
± 1 ⁄16 +10°°, − 5°° ± 1 ⁄16 +10°°, − 5°° ± 1 ⁄16 +10°°, − 5°°
Notes
B, E, J2, Q2, V
Double-bevel-groove weld (5) Butt joint (B) T-joint (T) Corner joint (C)
Welding Process
Joint Designation
SMAW
BTC-P5
GMAW FCAW
BTC-P5-GF
SAW
TC-P5-S
Base Groove Preparation Metal Thickness Tolerances (U = unlimited) Root Opening Root Face As As Fit T1 T2 Groove Angle Detailed Up 5 ⁄16
1 ⁄2
3 ⁄4
min
min
min
U
U
U
R=0 f = 1 ⁄8 min α = 45°°
+1 ⁄16 , − 0 unlimited +10°°, − 0°°
+1 ⁄8 , − 1 ⁄16
R=0 f = 1 ⁄8 min α = 45°°
+1 ⁄16 , − 0 unlimited +10°°, − 0°°
+1 ⁄8 , − 1 ⁄16
R=0 f = 1 ⁄4 min α = 60°°
±0 unlimited +10°°, − 0°°
+1 ⁄16 , − 0*
± 1 ⁄16
+10°°, − 5°° ± 1 ⁄16 +10°°, − 5°°
± 1 ⁄16 +10°°, − 5°°
*For flat and horizontal postiions f = + u , −0
AMERICAN INSTITUTE OF STEEL CONSTRUCTION
− 1 ⁄4
F
S1 + S2
Notes
E, J2, L, Mp, Q2, V