

Classification:

EN ISO 21952-A

AWS A5.28

G MoSi

ER70S-A1

Description:

Elgamatic 181CR is a copper coated wire for use with the MIG/MAG process, which deposits a 0.5%

Mo type weld metal. It is primarily intended for welding similar composition steels, used where creep

rupture strength and ductility at service temperatures up to 550° are required, e.g. DIN 15 Mo3, BS

C

3059 Grade 243 and ASTM A335 Grade P1. The Mo content confers some resistance to hydrogen

attack in chemical process plant applications. Elgamatic 181CR is also suitable for ordinary C-Mn

steels when higher tensile strength weld metal is required. Preheat and interpass temperature of

100-150° is recommended. Stress relieve at 620°

C

C.

Welding current:

DC+

Mechanical properties

Shielding gas:

C1, 100% CO2, 7-12 l/min

M21, 80% Ar + 20% CO2, 7-12 l/min

Yield strength, Re:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

Typical

Wire composition, wt.%



















510 MPa

620 MPa

25%

–20° • 65 J

C

20° • 100 J

C



Approvals:

DB

TÜV

CE

Product data:

Diam. Product code

mm

0,8

1,0

1,2

97102008

97102010

97102012

Spool weight



15 kg K300

15 kg K300

15 kg K300

50-90

80-150

110-180

142

  

16-18

18-22

18-22

120-160

180-230

240-300

22-26

24-30

26-33