

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°C are required, e.g. DIN 15 Mo3, BS

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°C is recommended. Stress relieve at 620°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°C • 65 J

20°C • 100 J

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