PRIMACORE® MW-81Ni1H
Product Application

Designed for offshore drilling rig construction, weathering steels, petrochemical and similar applications. 

Welding Position
Standard
  • AWS A5.29 E81T1-Ni1M-JH8 (DH≤5.0ml/100g)
  • ISO 17632-B-T554T1-1MA-N2-H5

 

 

 

 

Consumables Detail
  • Exceptional mechanical properties
  • Superior low temperature impact properties 
  • Outstanding weldability, low spatter and good bead appearance
  • Designed for offshore drilling rig construction, weathering steels, petrochemical and similar applications
  • Manufactured under a quality system certified to ISO 9001 and JIS requirements
  • H5 diffusion Hydrogen level reached with mixed shielding gas design
C% Si% Mn% S% P% Ni% Cr% Mo% V%
Requirements ≤0.12 ≤0.80 ≤1.50 ≤0.03 ≤0.03 0.80-1.10 ≤0.15 ≤0.35 ≤0.05
AWS A5.29 E81T1-Ni1M-JH8
Requirements ≤0.12 ≤0.80 ≤1.75 ≤0.03 ≤0.03 0.80-1.20 - ≤0.35 ≤0.05
ISO 17632-B -T554T1-1MA-N2-H5
Typical Values 0.06 0.29 1.1 0.006 0.007 0.93 0.04 0.004 0.02
(with 80%Ar/20%CO2 )

Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Charpy V-Notch (J) Diffusion Hydrogen
@-40℃ (ml/100g)
Requirements ≥470 550-690 ≥19 ≥27 ≤8
AWS A5.29 E81T1-Ni1M-JH8
Requirements ≥460 550-740 ≥17 ≥27 ≤5
ISO 17632-B- T554T1-1MA-N2-H5
Typical Values 505 570 28 132 3.5
(with 80%Ar/20%CO2 )

Diameter(mm) Spool/Drum Weight(kg) Pallet Weight(kg)
1.2 15 1080
1.6 15 1080

Diameter Polarity CTWD mm(inches) Wire Feed Speed Voltage(V) Approx.Current(A)
in/min(cm/min)
1.2mm
DC+
20mm(3/4”)		 175(445) 20-23 130
225(572) 22-24 165
275(699) 24-26 185
325(826) 25-28 200
375(953) 26-28 230
425(1080) 27-29 250
475(1207) 28-30 270
600(1524) 30-32 310
1.6mm
DC+
25mm(63/64”)		 130(330) 21-24 180
150(381) 22-25 210
200(508) 23-26 265
250(635) 25-28 305
300(762) 27-30 345

Consumables Category
STICK ELECTRODES
MIG & TIG Wires
Welding Class