GRIDUR NMR

IDENTIFICATION : GRIDUR - NMR E12015G
CLASSIFICATION : AWS/ SFA:5.5 E 12015-G, prEN 1599 : E ZCr Mo 1 NiMo 1B 42 H10

CHARACTERISTICS :

Medium heavy coated, hydrogen controlled creep resistant basic type electrode depositing low alloy 1%Cr-2.5% Ni-0.8Mo high tensile weld metal.The deposited weld metal meets x-ray quality requirements.

TYPICAL APPLICATION :

For surfacing and joint welding in machine building and construction of apparatus, as well as for repair welding of components made of similar steel grades, steam turbines, rotors. Identical and similar low alloy steels and cast steels, e.g. 24 Cr MoV 5 2 , 24 CrMoV5 5, 21 CrMoV 5 11, 36 CrNiMo 4, 28 NiCrMo 5 5, 28.


WELD METAL ANALYSIS (RANGE) % :

C Si Mn Cr Ni Mo S P
0.12 max 0.2-0.6 0.6-1.0 0.8-1.25 2.10-2.80 0.8-1.10 0.03 max 0.03 max

MECHANICAL PROPERTIES (RANGE) :

  Ultimate Tensile Strength MPa Yield Stress MPa Elongation (%) (L=4D) Charpy V-notch impact strength
AW 950-1050 800-900 13-18 Temp Joule
27 45-80
NT 770-870 550 15-20 27 80-140

AW= as-welded, N+T =normalized +tempered 1hr at 9200C, air cooling +1hr at 7000C,air cooling



REDRYING TEMPERATURE :

300 to 3500C for 2 hrs.


RECOMMENDED CURRENT AND PACKING DATA :

SIZE (mm) LENGTH (mm) CURRENT CONDITIONS AC/DC (+) AMPS WEIGHT 1000 PCS Kg (approx)
2.5 350 65-85 18.0
3.15 450 100-135 39.0
4.0 450 140-180 60.0
5.0 450 180-230 93.0
6.30 450 230-300 145.0