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UTP HydroCav - UTP Schweissmaterial

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Standards :<br />

EN ISO 14172 : E Ni 1069<br />

(NiMo28Fe4Cr)<br />

AWS A5.11 : E NiMo-11<br />

<strong>UTP</strong> 6202 Mo<br />

Basic coated NiMo stick electrode for<br />

highest corrosion requirements<br />

Application field<br />

<strong>UTP</strong> 6202 Mo is suited for joining materials of the same nature, e. g. alloy B 3 (UNS 10629, NiMo29Cr,<br />

material-No. 2.4600), alloy B 2 (NiMo28, Material-No. 2.4617) or other NiMo-alloys with similar chemical<br />

composition such as for surfacing on low alloyed steels.<br />

<strong>UTP</strong> 6202 Mo is used in the chemical process industry, especially for processes involving sulphuric-, hydrochloric-<br />

and phosphoric acid.<br />

Properties of the weld metal<br />

Good resistance against hydrogen chloride, sulphuric -, acetic - and phosphoric acids. Intermetallic precipitation<br />

will be largely avoided.<br />

Mechanical properties of the weld metal<br />

Yield strength<br />

R e<br />

MPa<br />

> 450<br />

Weld metal analysis in %<br />

Welding instructions<br />

Grind and clean base material on each side of the weld. Weld with the lowest possible heat input and minimum<br />

interpass temperature. String beads are welded. Quick cooling is advisable to reduce intermetallic<br />

precipitation in the heat affected zone. Re-dry the stick electrodes 2 – 3 hours at 250 – 300° C before use<br />

and weld them out of a warm electrode carrier.<br />

Current type DC (+)<br />

Stick electrodes<br />

Amperage<br />

Ø mm x L<br />

A<br />

Tensile strength<br />

R m<br />

MPa<br />

> 700<br />

2,5 x 300<br />

50 – 70<br />

Elongation<br />

A<br />

%<br />

> 30<br />

3,2 x 300<br />

70 – 90<br />

Impact strength<br />

K v<br />

Joule<br />

> 80<br />

C Si Mn P S Cr Mo Ni Nb Co Al Fe<br />

0,01 0,2 0,5 0,015 0,015 1,0 27,5 balance < 0,5 < 0,5 < 0,5 3,0<br />

Availability / Current adjustment<br />

Welding positions<br />

PA PB PC PE PF<br />

4,0 x 350<br />

90 – 120<br />

29

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