309LMo

type 
Solid stainless steel wire for dissimilar welding and cladding.
applications 
A continuous, solid, corrosion-resistant wire of the ''309LMo'' type. 309MoL is used for the overlay welding of unalloyed and low-alloyed steels and for welding dissimilar steels, such as 316L, to unalloyed and low-alloyed steels when Mo is essential.
Properties 

Excelent corrosion resistance against oxidising air upto 950ºC. Good resistance against hot cracking due to the high Mo. content.

classification
AWS 
A 5.9: ER 309 LMo
EN ISO 
14343-A: G 23 12 3 L
DIN: W.Nr. 
1.4459
DIN 
8556: SG X12CrNiMo 24 12 3
Suitable for 

Buffer layers before hard facing, dissimilar joints between ferritic and austenitic steels and or other stainless steel types to standard carbon steel. Recommended for cladding on low alloyed steel in case AISI 316 is required as first layer.

approvals 
CE approved
welding positions: 
weld metal analysis %

C

Cr

Ni

Mo

Mn

Si

P

S

Cu

<0.03

23.0-25.0

12.0-14.0

2.0-3.0

1.0-2.5

0.3-0.65

<0.03

<0.03

<0.75

mechanical properties

Heat

RP0,2

Rm

A5

Impact Energy (J) ISO-V

Hardness

Treatment

(N/mm2)

(N/mm2)

(%)

+20°C

-40°C

-60°C

HRc / HV

AW

400

600

31

110

>60

AW: as welded
redrying temperature 
not required
welding parameters / packing

Welding Parameters

Packing

D (mm)

Voltage (V)

Current (A) DC+

spool type

kg / spool / Drum

kg / pallet

0.8

16-22

50-140

K-300 / Drum

15 / 250

1080 / 1000

1.0

16-24

80-190

K-300 / Drum

15 / 250

1080 / 1000

1.2

20-28

180-280

K-300 / Drum

15 / 250

1080 / 1000

1.6

24-28

230-350

K-300 / Drum

15 / 250

1080 / 1000

gas acc. en iso 14175:
Argon +20-30%He / Argon +1-5%H2