u Utp a 786 Gmaw 01

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UTP SchweissmaterialZweigniederlassung der Bhler Schweisstechnik Deutschland GmbHwww.utp-welding.com Edition: 04/2013 Rev.: 0

GMAW wire for high corrosion resi-stant NiCrMoW alloys and claddings

UTP A 786Standards :EN ISO 18274 : S Ni 6686

(NiCr21Mo16W4)AWS A5.14 : ER NiCrMo-14

Application fieldUTP A 786 is suitable for joining and surfacing of high corrosion resistant NiCrMo alloys for chemical pro-cesses in highly corrosive reducing and oxidizing environments. UTP A 786 is particularly designed for claddings of desulphurization and waste incineration componentssuch as pipes and finned tubes made of heat resistant steels. Joining of similar or dissimilar base materials:Nickel base alloys 2.4602 NiCr21Mo14W

2.4605 NiCr23Mo16Al2.4606 NiCr21Mo16W2.4610 NiMo16Cr16Ti2.4819 NiMo16Cr15W

Low alloyed steels 16Mo3, ASTM A 312 Gr. T11/T12

Weld metal analysis in %

Mechanical properties of the weld metal

Welding instructionsClean the welding area thoroughly. Preheating of large parts at approx. 80C, interpass temperature max.150C. Use MIG pulse welding process with a low heat input (< 10 kJ/cm).

Welding procedure and availability

(mm) Current type

Shielding gasEN ISO 14175

AvailabilitySpools

Z-ArHeH2Co2-30/2/0,05 EN ISO 5441,0 DC (+) x x1,2 DC (+) x x

Yield strengthRp0,2MPa

> 450

Tensile strengthRmMPa

> 760

ElongationA%

> 30

Impact strengthKv

Joule> 50

Hardness

HBappr. 230

C0,01

Si0,08

Mn< 0,5

Cr22,8

Mo16,0

W3,8

Al0,3

Fe< 1,0

Nibal.