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Utp 630

UTP 630 is a synthetic rutile coated electrode suited for welding high strength steels and heterogeneous joints requiring toughness and crack resistance. It produces a fully austenitic weld metal resistant to corrosion and scale up to 850°C, and is work-hardenable. The weld metal typically contains 0.1% C, 0.8% Si, 6.0% Mn, 19.0% Cr, 9.0% Ni, with a yield strength of 350 MPa, tensile strength of 600 MPa, and elongation of 40%. UTP 630 is easily weldable with a stable arc and fine ripple, and provides good slag removal for repair and maintenance applications.

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475 views1 page

Utp 630

UTP 630 is a synthetic rutile coated electrode suited for welding high strength steels and heterogeneous joints requiring toughness and crack resistance. It produces a fully austenitic weld metal resistant to corrosion and scale up to 850°C, and is work-hardenable. The weld metal typically contains 0.1% C, 0.8% Si, 6.0% Mn, 19.0% Cr, 9.0% Ni, with a yield strength of 350 MPa, tensile strength of 600 MPa, and elongation of 40%. UTP 630 is easily weldable with a stable arc and fine ripple, and provides good slag removal for repair and maintenance applications.

Uploaded by

brayan
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© © All Rights Reserved
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UTP 630

Synthetic rutile coated CrNiMn-stick electrode


Universally applicable

Classifications
EN ISO 3581-A AWS A5.4 Material-No.
E 18 8 Mn R 73 E307-26 (mod.) 1.4370
Characteristics and field of use

UTP 630 is suited for particularly tough, crack resistant joints and surfacings on high strength
steels, hard-manganese steels and heterogeneous joints. Suitable for surfacings on parts
subjected to impact, pressure and rolling wear, such as rails, curved rails, switches, rolls etc. and
for tough buffer layers under hard alloys. A main application field is for repair and maintenance in
the constructional industry.

UTP 630 is easily weldable with stable arc, homogeneous, finely rippled bead appearance and
gives good slag removal. The fully austenitic weld metal is resistant to corrosion and to scale up to
850°C. The weld metal is work-hardenable.

Hardness of the pure weld metal


untreated: approx. 200 HB
work-hardened: approx. 350 HB

Typical analysis in %
C Si Mn Cr Ni Fe
0.1 0.8 6.0 19.0 9.0 balance
Mechanical properties of the weld metal
Yield strength Rp0,2 Tensile strength Rm Elongation A Impact strength Kv
MPa MPa % J
350 600 40 > 60
Welding instruction
Clean welding area thoroughly. Pre-heating of thick-walled ferritic parts to 150 - 250°C. Hold stick
electrode vertically with a short arc.
Re-dry stick electrodes that have got damp for 2 h / 250 - 300°C.

Welding positions

Current type DC (+) / AC

Recommended welding parameters


Electrodes Ø x L [mm] 2.5 x 350 3.2 x 450 4.0 x 450 5.0 x 450
Amperage [A] 80 – 100 100 – 130 130 – 180 150 – 200

All information provided is based upon careful investigation and intensive research. 11/2016 Rev. 0 TA/dp
However, we do not assume any liability for correctness and information is subject to change without notice. www.voestalpine.com/welding

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