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OZL - 25B

WELDING ELECTRODES OZL-25B (diameter 3; 4 mm)

LEGEND:E10H20N70G2M2B2V OZNL-25B - Ø - WA
                                        E-087-B20

TECHNICAL REQUIREMENTS:GOST 9466-75, GOST 10052-75, TU BY 100034500.032-2011

COATING:main

PURPOSE:

Welding of corrosion-resistant and heat-resistant superalloy XH78T brand alloy; cold-resistant and can weld dissimilar steels and cast iron. In all spatial positions seam direct current reverse 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)

14.0 g / Ah

deposition rate (electrode diameter 4.0 mm)

1.5 kg / h

Electrode consumption per 1 kg of weld metal

1.4 kg

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

Tensile strength, MPa

Relative extension, %

Impact toughness J / cm2

640

thirty

100

Chemical composition of deposited metal:

Element content, weight%

Carbon

Silicon

Chromium

Nickel

Manganese

Molybdenum

Tungsten

Niobium

Sulfur

Phosphorus

<= 0.12

<= 0.8

18-22

25-29

1,50-2,50

1,30-2,50

0,10-0,30

1,50-2,80

<= 0.013

<= 0.020

DIRECTIONS FOR USE:

Provide a weld metal with high mechanical and special properties: heat resistance to a temperature of 1000 ° C, rupture strength of 75 MPa at 850 ° C for 100 hours, the corrosion resistance - corrosion rate is not more than 0.02 mm / year (30% H2SO4 + 10 % HNO3 at 80 ° C for 96 hours).

WELDING MODES:

Electrode diameter mm

Welding current, A

joint position

Underwear

vertical

ceiling

3

80-100

70-90

70-90

4

120-140

80-120

80-120



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