Classification:
EN ISO 14343
AWS A5.9
G 18 8 Mn
~ER307
Description:
Cromamig 307Si produces a tough, ductile, 19% Cr / 9% Ni / 7% Mn austenitic stainless weld metal
which is highly crack resistant. It is intended for joining hardenable steels, armour plate, 13% Mn
steels and difficult-to-weld steels, without the need for preheat. It is also recommended for dissimilar
joints between stainless and mild or medium carbon steels. Welds produced with Cromamig 307Si
can be PWHT without risk of sigma-phase formation and consequent loss of ductility. The deposit
work hardens from 200 HV to 450 HV.
APPLICATIONS: Buffer layers on 13% Mn steels used in rock crushing and earth moving equipment,
prior to hardfacing. Reclaiming 13% Mn steels. Surfacing of rails, rail crossings, frogs etc. Buffer
layers in highly restrained repair work.
Welding current:
DC+
Mechanical properties
Shielding gas:
M12, Ar + 1-3% O2, 16-21 l/min
M13, Ar + 2% CO2, 16-21 l/min
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Wire composition, wt.%
380 MPa
600 MPa
40%
20°C • 100 J
Approvals:
DB
TÜV
CE
Product data:
Diam. Product code
mm
0,8
1,0
1,2
98242008
98242010
98242012
Spool weight
15 kg S300
15 kg S300
15 kg S300
60-100
75-140
130-160
159
18-21
18-21
18-21
150-170
170-200
175-250
24-26
26-28
26-28