

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