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4 мм
5.00 кг
1 package
278.55UAH.
упаковок
278.55 UAH.

COATING TYPE - Basic

ГОСТ 9466 — 75 Э 50А –ТМУ-21У-Ø-УД
Е 51 3 — Б20

ТУ У 25.9-34142624-014:2017

ISO 2560-A- E 42 А B 2 2

AWS A5.1: Е7015

PURPOSE AND FIELD OF APPLICATION

Electrodes TMU-21U are designed for welding of critical structures and pipelines of carbon and low-alloyed steels, equipment of thermal and nuclear power plants.

APPLICATION CONDITIONS

Welding with electrodes TMU-21U is made on DC of reverse polarity in all the spatial positions, except the vertical down. Deposition rate factor – 9,5 g/A hour. Electrode consumption per 1 kg of deposited metal: 1,5 kg. Welding should be done with a short arc on the clean edges. 

REDRYING BEFORE WELDING

At the normal storage conditions, the redrying is not required. In case of moisture redrying: 380-400 ºС 60-90 min. Moisture content in the coating should not exceed 0,4%.

 

CHEMICAL COMPOSITION OF DEPOSITED METAL, %

Mn Si C P S
0.70-1.00 0.20-0.43 ≤0.12 ≤ 0.035 ≤ 0.030

MECHANICAL PROPERTIES OF WELD METAL

  Tensile strength, MPa Yield strength, MPa

Elongation, %

Impact strength, J / сm²

+20 ˚С

≥ 510 ≥ 420 ≥20 ≥130

Welding is made on DC of reverse polarity (“+” on the electrode). 

PACKAGING DATA

Diameter, mm Length, mm Welding current, A Units per package, pcs Weight of packing, kg
3 350 60-115 92-93 2.5
4 450 100-170 81-85 5

 

WELDING POSITIONS

PA PB PC PF

 

PE PD

ДСТУ EN ISO 6947

 

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