Electrodes МР - 3

WELDING ELECTRODES MR - 3 (diameter 2; 2,5; 3; 4; 5; 6 mm)

CLASSIFICATION: E46 in accordance with GOST 9467-75

LEGEND:E46 - IR-3 - Ø - LE
E 430 (3) - P26

TECHNICAL REQUIREMENTS:GOST 9466-75, GOST 9467-75 and TU RB 100034500.010-2005

COATING: rutile

PURPOSE:

The electrodes used for welding ordinary and critical structures of carbon steels in all positions seam, except vertical "top-down", and the variable direct current reverse polarity.

CHARACTERISTICS Electrodes:

arcing	sustainable;
splashing degree	small
formation of the joint	good;
Separation of the slag crust	normal
The tendency of the weld metal to pore formation	low;
deposition rate (in the lower position of the weld)	8.0-9.0 g / Ah;
deposition rate (electrode diameter 4.0 mm)	1,2-1,6 kg / h;
Electrode consumption per 1 kg of weld metal	1.7 kg;
spraying factor	2.0-5.5

Typical mechanical properties all weld metal (at normal temperature)

Tensile strength, MPa	Yield strength, MPa	Relative extension, %	Impact toughness J / cm2
480	390	22	90

Chemical composition of deposited metal:

Element content,%
Carbon	Manganese	Silicon	Sulfur	Phosphorus
0,07-0,12	0,40-0,85	0.07 - 0.20	Not more than 0,040	Not more than 0,045

DIRECTIONS FOR USE:

In case of exceeding the permissible moisture content in the coating (1.5%) before use further electrodes are calcined at a temperature of 140-160 ° C for 60 minutes.

WELDING MODES:

Electrode diameter mm	Welding current, A
	joint position
	Underwear	vertical	ceiling
2.0	50-80	40-60	40-60
2.5	60-90	50-80	50-80
3	70-100	60-90	60-90
4	100-150	90-140	90-140
5	150-200	140-180	-

Welding structures medium and large thickness in the bottom position to produce elevated modes electrode tilt toward the direction of welding (back angle).

~ , = / + /

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