



Classification:

AWS A5.4

EN ISO 3581-A

E 2209-15

E 22 9 3 NL B 42

Description:

Cromarod Duplex B is a basic flux coated electrode intended for welding similar composition duplex

stainless steels e.g. 1.4462, UNS 31803. The basic coating design produces a very low micro-oxide

level in the deposit, giving excellent fracture toughness at temperatures down to -46 °C.

Duplex stainless steels offer an excellent combination of high strength and very good resistance to

chloride induced pitting and stress corrosion cracking.

A heat input range of 0,5-2,5 kJ/mm is recommended to maintain a favourable ferrite/austenite phase

balance in the weld metal.

Applications:

Offshore, platform, pipework, pipelines transporting chloride bearing products, or sour gas and

process vessels for chloride environments.

'

Coating type:

Basic

Mechanical properties

Metal recovery:

110%

Yield strength, Rp0.2%:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

Typical

Welding positions:



Welding current:

DC+

Ferrite content:

FN 35 (WRC-92)

Redrying temperature:

350 °C, 2h

Corrosion resistance

Typical value: PRE 36

CPT 30°C (ASTM G48)

Approvals:

CE

Chemical composition, wt.%





























Product data

  





630 MPa

790 MPa

27%

-40 °C • 65 J

-50 °C • 60 J

















2,5

300

74622500

50-80

24

0,65

87

0,8

3,2

350

74623200

75-120

25

0,68

43

1,4

4,0

350

74624000

120-175

27

0,68

28

1,9

80