Welding electrodes HR-1U

AWS A5.5: E8018-B2

EN ISO 3580-А-Е CrMo1 B 2 2

designed for welding in all spatial positions in a circumvertical way from top to bottom

Special properties

provide high resistance of the weld metal to the formation of pores during arc extension
allow welding with an inclination of the edges of the base metal at least 15º
welding is performed with a short arc, the edges are cleaned before welding
surfacing coefficient: 0,16…0,18 g/A•min
consumption of electrodes per 1 kg of deposited metal: 1,4…1,5 кг

HR-1U electrodes are designed for manual arc welding on a direct current of reverse polarity in all spatial positions, except for a vertical top-down method of equipment and pipelines made of steel grades 12МХ, 15ХМ, 20ХМЛ, 12Х2М1, 12X1MF, 12X2MFB, 12X2MFSR, 20XMFL, and 15X1M1FL working at temperatures up to 540 °C, as well as elements of heating surfaces boilers made of steel grades 12X2M1, 12X1MF, 12X2MFB, 12X2MFSR, regardless of the operating temperature.

Diameter

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3 mm

4 mm

Package Weight

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Packaging data

Diameter, mm	Length, mm	Number of electrodes in a pack, pcs.	Pack weight, kg
3,0	350	91 – 95	2,5
4,0	450	81 – 85	5,0

Diameter

Select diameter

3 mm

4 mm

Package Weight

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First select diameter

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Coating type

basic

CHEMICAL COMPOSITION OF DEPOSITED METAL, %

According to AWS A5.1 / Typical Results

Carbon

0.09

Manganese

0.7

Silicon

0.25

Chromium

Molybdenum

0.6

WEDGE METAL MECHANICAL PROPERTIES

According to AWS A5.1 / Typical Results

Tensile strength, MPa ≥ 510
Yield strength, MPa ≥ 355
Elongation, % ≥ 20
Impact energy KV +20 °C, J ≥ 47

Baking before welding

permissible moisture content in the coating before use is not more than 0.4%
in case of electrode coating wetting above the norm - dry for 60 minutes at 400±10 °С

Welding modes