Submerged Arc Welding Technical Handbook - Esab

SFA/AWS A5.23: SPECIFICATION FOR LOW-ALLOY STEEL ELECTRODES AND FLUXES FOR SUBMERGED ARC WELDING
Example: OK Flux 10.63 / OK Autrod 13.20 SC:
F 8 P 8 - EB3R - B3R
SFA/AWS A5.23: F8P8-EB3R-B3R
Indicates a submerged
arc welding flux
Symbol for tensile
properties
Symbol for heat
treatment
Symbol for impact
properties
Chemical composition
of wire electrodes
Chemical composition
of weld metal
Tensile strength Yield strength
- min.
A As welded
P Postweld heat treated (PWHT); depending
on alloy, 620°C, 690°C and other temp. / 1h
Elongation (Tensile
strength)
(Yield strength
- min.)
[psi] [psi] [%] ( [MPa] ) ( [MPa] )
7 70.000 - 95.000 58.000 22 ( 480 - 650 ) ( 400 )
8 80.000 - 100.000 68.000 20 ( 550 - 690 ) ( 470 )
9 90.000 - 110.000 78.000 17 ( 620 - 760 ) ( 540 )
10 100.000 - 120.000 88.000 16 ( 690 - 830 ) ( 610 )
11 110.000 - 130.000 98.000 15 ( 760 - 900 ) ( 680 )
12 120.000 - 140.000 108.000 14 ( 830 - 970 ) ( 740 )
Chemical composition of wire electrodes - in % (extract of complete table)
Classification C Mn Si S P Cr Ni Mo Cu (including
Cu-coating)
EA2 0.05 - 0.17 0.95 - 1.35 0.20 0.025 0.025 - - 0.45 - 0.65 0.35 -
EA3 0.05 - 0.17 1.65 - 2.20 0.20 0.025 0.025 - - 0.45 - 0.65 0.35 -
EA4 0.05 - 0.17 1.20 - 1.70 0.20 0.025 0.025 - - 0.45 - 0.65 0.35 -
EB2R 0.07 - 0.15 0.45 - 1.00 0.05 - 0.30 0.010 0.010 1.00 - 1.75 - 0.45 - 0.65 0.15 see 2.)
EB3R 0.05 - 0.15 0.40 - 0.80 0.05 - 0.30 0.010 0.010 2.25 - 3.00 - 0.90 - 1.00 0.15 see 2.)
EB6 0.10 0.35 - 0.70 0.05 - 0.50 0.025 0.025 4.50 - 6.50 - 0.45 - 0.70 0.35 -
EB8 0.10 0.30 - 0.65 0.05 - 0.50 0.025 0.025 8.00 - 10.50 - 0.80 - 1.20 0.35 -
EB9 0.07 - 0.13 1.25 0.30 0.010 0.010 8.00 - 10.00 1.00 0.80 - 1.10 0.10 see 3.)
ENi1 0.12 0.75 - 1.25 0.05 - 0.30 0.020 0.020 0.15 0.75 - 1.25 0.30 0.35 -
ENi2 0.12 0.75 - 1.25 0.05 - 0.30 0.020 0.020 - 2.10 - 2.90 - 0.35 -
ENi3 0.13 0.60 - 1.20 0.05 - 0.30 0.020 0.020 0.15 3.10 - 3.80 - 0.35 -
EG not specified
( EC ) ( composite electrode )
Single values are maimum. 2.) As: 0.005; Sn: 0.005; Sb: 0.005 3.) V: 0.15 - 0.25; Nb: 0.02 - 0.10; N: 0.03 - 0.07; Al: 0.04
Other
Chemical composition of weld metal - in % (extract of complete table)
Symbol for impact properties
Digit Temperature Charpy-V
impact (min)
(Temperature) Charpy-V
impact (min)
[°F] [ft * lbf] ( [°C] ) ( [J] )
0 0 20 ( - 18 ) ( 27 )
2 - 20 20 ( - 29 ) ( 27 )
4 - 40 20 ( - 40 ) ( 27 )
5 - 50 20 ( - 46 ) ( 27 )
6 - 60 20 ( - 51 ) ( 27 )
8 - 80 20 ( - 62 ) ( 27 )
10 - 100 20 ( - 73 ) ( 27 )
15 - 150 20 (- 101 ) ( 27 )
Z no requirements
Classification C Mn Si S P Cr Ni Mo Cu (including
Cu-coating)
A2 0.12 1.40 0.80 0.030 0.030 - - 0.40 - 0.65 0.35 -
A3 0.15 2.10 0.80 0.030 0.030 - - 0.40 - 0.65 0.35 -
A4 0.15 1.60 0.80 0.030 0.030 - - 0.40 - 0.65 0.35 -
B2 0.05 - 0.15 1.20 0.80 0.030 0.030 1.00 - 1.50 - 0.40 - 0.65 0.35
B2R 0.05 - 0.15 1.20 0.80 0.010 0.010 1.00 - 1.50 - 0.40 - 0.65 0.15 see 2.)
B3 0.05 - 0.15 1.20 0.80 0.030 0.030 2.00 - 2.50 - 0.90 - 1.20 0.35
B3R 0.05 - 0.15 1.20 0.80 0.010 0.010 2.00 - 2.50 - 0.90 - 1.20 0.15 see 2.)
Ni1 0.12 1.60 0.80 0.025 0.030 0.15 0.75 - 1.10 0.35 0.35 see 3.)
Ni2 0.12 1.60 0.80 0.025 0.030 - 2.00 - 2.90 - 0.35 -
Ni3 0.12 1.60 0.80 0.025 0.030 0.15 2.80 - 3.80 - 0.35 -
F3 0.17 1.25 - 2.25 0.80 0.030 0.030 - 0.70 - 1.10 0.40 - 0.65 0.35 -
EG not specified
Single values are maximum. 2.) As: 0.005; Sn: 0.005; Sb: 0.005 3.) Ti+V+Zr: 0.05 4.) Weld metals generated with a composite electrode have the prefix ”EC”
Other
90