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UTP HydroCav - UTP Schweissmaterial

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Standards :<br />

EN 1600 : EZ 17 5 1 B 4 2<br />

<strong>UTP</strong> 6655 Mo<br />

Basic coated stick electrode for17 %<br />

Cr-, 5 % Ni steels<br />

Application field<br />

<strong>UTP</strong> 6655 Mo is a basic coated stick electrode for joining and surfacing on Cr-steels / cast steels with 16<br />

% Cr, 5 % Ni, 1 % Mo, used in the water turbine - and pump construction<br />

Base materials<br />

1.4405, 1.4418<br />

Properties of the weld metal<br />

The weld deposit of <strong>UTP</strong> 6655 Mo is stainless as resistant to corrosion as similar 17%-Ni steels. It has a<br />

high resistance to corrosion and vibratory corrosion.<br />

Mechanical properties of the weld metal<br />

Yield strength<br />

R p0,2<br />

MPa<br />

700<br />

Weld metal analysis in %<br />

Tensile strength<br />

R m<br />

MPa<br />

900<br />

Elongation<br />

A<br />

%<br />

15<br />

Impact strength<br />

K v<br />

Joule<br />

40<br />

C Si Mn Cr Ni Mo Fe<br />

0,03 0,3 0,6 17,0 5,0 1,0 balance<br />

Welding instructions<br />

For similar and sissimilar steels up to a 10 mm wall thickness, preheating of 100-150 °C has to be kept. Above<br />

10 mm 150 - 200 °C. Re-drying 2 h at 250-300° C.<br />

Current type<br />

= +<br />

Availability / Current adjustments<br />

Stick electrodes<br />

Amperage<br />

* available on request<br />

Ø mm x L<br />

A<br />

Welding positions<br />

2,5 x 300*<br />

60 – 80<br />

3,2 x 350*<br />

90 - 110<br />

PA PB PC PE PF<br />

4,0 x 400*<br />

110 - 140<br />

321

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