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Classification:
EN ISO 21952-A G MoSi
AWS A5.28 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+
Shielding gas:
C1, 100% CO2, 7-12 l/min
M21, 80% Ar + 20% CO2, 7-12 l/min
Wire composition, wt.%
Approvals:
DB
TÜV
CE
Mechanical properties
Typical
Yield strength, Re: 510 MPa
Tensile Strength, Rm: 620 MPa
Elongation, A5 25%
Impact energy, CV:
–20°C
•
65 J
20°C
•
100 J
Product data:
Diam.
mm
Product code Spool weight
0,8 97102008
15 kg K300
50-90
16-18 120-160 22-26
1,0 97102010
15 kg K300
80-150
18-22 180-230 24-30
1,2 97102012
15 kg K300
110-180
18-22 240-300 26-33