Page 171 of 561

IMPACT-329 S

Electrode for Heat Resistant Overlays Identification: Imprint Unitor IMPACT-329 S Classifications

DIN 8555 E 20-UM-250-CRTZ

Approvals

N.A.

Type of current

AC DC+

Welding positions

PA

Materials to be welded

Main applications:

PB

PC

PF

PE, PD

Rebuilding worn exhaust valves in combustion engines.

General applications: Wear resistant non-magnetic surface layers on most weldable steel surfaces, including cast steel, alloy steels and stainless steels, where following properties are required even at high working temperatures, up to 900°C: – High “general” wear resistance – High corrosion resistance – High impact and pressure resistance – High resistance against abrasion by metal to metal friction or caviation

3.01

Application examples:

All weld metal composition

Typical mech. properties of weld metal

Welding data

– Rocker arms – Valve parts – Pump parts – Flapper gates – Extrusion screws – Stream through valves

Co

Cr

W

C

Ni

Fe

Mn

Si

Rest

20

15

0.1

10

2.0

1.0

0.8

Tensile strength MPa

Elongation %

Hardness as welded HB

Hardness after work hardening HB

850

25–30

250

440

Diameter mm.

Current range, A

3.2

70–120

Arc time / Deposition rate electrode, sec.

Kg/h

Electrodes per kg weld metal

Fume class

66

1.36

40

7

* SDS available on request.

Packaging data

DDiameter mm.

Length mm.

Electrodes per box

Net weight, kg per box

Product No.

per box

Boxes per carton

3.2

350

39

1.4

096-606460

6

Re-drying temperature: 250 °C (482 °F) for one hour.

170