Guide to EN ISO 14174: Fluxes for submerged arc welding
Application flux class
Hydrogen content, all-weld metal
Symbol
1
2
3
Symbol ml/100g deposited metal
For non alloy and low alloy steels
For stainless and Ni-base alloys
For surfacing , with alloy transfer
from flux
H4
H5
H10
max. 4
max. 5
max. 10
Method of manufacture
Symbol
F
A
M
Type of current
Fused
Agglomerated
Mixed
Symbol
DC
AC
DC only
AC or DC
Flux for
SAW
SA
AB
1
67
Characteristic chemical constituents
Symbol
MS
CS
ZS
RS
AR
AB
AS
AF
FB
Z
AC
Metallurgical behaviour
Symbol
Behaviour
Contribution from
flux
1
2
3
4
5
6
7
8
9
Burn out
Burn out
Burn out
Burn out
Neutral
Pick-up
Pick-up
Pick-up
Pick-up
0.70.5-0.7
0.3-0.5
0.1-0.3
0-0.1
0.1-0.3
0.3-0.5
0.5-0.7
0.7-
Type of flux
Manganese-silicate
Calcium-silicate
Zirconium-sili cate
Rutile-silicate
Aluminate-rutile
Aluminate-basic
Aluminate-silicate
Aluminate-fluoride-basic
Fluoride-basic
Any other composition
H5
Flux class
1
2
3
Elements
Si and Mn
Chemical symbols, pick-up
Chemical symbols, pick-up
280