Classification:
AWS A5.4
EN ISO 3581-A
~E 312-17
E 29 9 R 32
Description:
Cromarod 312 is a rutile flux coated electrode which deposits a 29%Cr /
9%Ni austenitic/ferritic stainless steel weld metal with a ferrite content of approximately FN 50. The
weld metal exhibits excellent tolerance to dilution from dissimilar and difficult-to-weld materials
without hot cracking.
Applications:
– Difficult-to-weld steels e.g. high carbon hardenable tool, die and spring steels, 13% Mn steels,
free-cutting steels, high temperature steels (non-structural).
– Dissimilar joints between stainless and high carbon steels.
– Surfacing of metal-to-metal wear areas, hot working tools, furnace components.
'
Coating type:
Rutile
Mechanical properties
Welding positions:
Yield strength, Rp0.2%: 590 MPa
Tensile Strength, Rm: 760 MPa
Elongation, A5
25%
Typical
Welding current:
DC+, AC OCV > 39V
Ferrite content:
FN 50 (WRC-92)
Redrying temperature:
350 °C, 2h
Corrosion resistance
Good resistance to sulphurous gases at high
temperature. Good resistance to wet corrosion up
to approximately 300 °C.
Chemical composition, wt.%
Scaling temperature:
Approx. 1100 °C in air.
Approvals:
CE
Product data
2,5
300
74382500
40-80
25
0,64
90
1,1
3,2
350
74383200
80-120
26
0,64
47
1,5
4,0
350
74384000
100-160
27
0,65
31
2,1
74