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The electrodes OZL - 17U

WELDING ELECTRODES OZL-17U (diameter 3; 4; 5 mm)

LEGEND: OZL-17U - Ø - WA
                      E-400-B20

TECHNICAL REQUIREMENTS: GOST 9466-75, TU BY 100034500.030-2011

COATING: main

PURPOSE:

For welding equipment and structures of 06HN28MDT corrosion resistant alloys, and steel 03HN28MDT 03H21N21M4GB mark, preferably up to 12 mm thick in working environments of sulfuric and phosphoric acids with impurities of fluoride. In all spatial positions except the vertical "top-down" at a constant current of opposite polarity.

CHARACTERISTICS Electrodes:

arcing

sustainable

splashing degree

small

formation of the joint

a good

Separation of the slag crust

satisfactory

deposition rate (in the lower position of the weld)

12.0 - 14.0 g / Ah

deposition rate (electrode diameter 4.0 mm)

1,7-2,0 kg / h

Electrode consumption per 1 kg of weld metal

1.8 kg

Typical mechanical properties of weld metal (at 20 ° C):

Tensile strength, MPa

Relative extension, %

Impact toughness J / cm2

Type of heat treatment (t / a)

540

26

110

Without t / o

Chemical composition of deposited metal:

Element content, weight%

Carbon

Silicon

Chromium

Nickel

Manganese

Sulfur

Phosphorus

Molybdenum

Copper

Niobium

<= 0.04

<= 0.7

21-25

25-29

1.5-2.5

<= 0.02

<= 0.03

2,6-4,3

2.5-3.5

0.4-0.5

DIRECTIONS FOR USE:

The weld metal is resistant to intergranular corrosion.

In case of exceeding the permissible moisture content in the coating (0.7%) before use further electrodes are calcined at a temperature of 280 - 300 ° C for 40-60 minutes.

WELDING MODES:

Electrode diameter mm

Welding current, A

joint position

Underwear

vertical

ceiling

3

90-100

80-100

80-100

4

130-160

120-150

120-150

5

180-220

170-200

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