Hardfacing electrodes (REL)

Category:

Description

 

Name

standard

Ø     mm

Package (Kg)

Chemical analysis (%)

Mechanical properties
(AW/KS)

Current, polarity, welding positions

EH 340
DIN 8555 E1 – UM – 400

3,20

105-135

C 0,17 Hardness  (HRc)

42

pol17

pol12

4,00

120-180

Si 0,9

5,00

170-240

Mn 0,38
Cr 2,7
Mo 0,4
Ni 0,1
Fe rest
Thick basic-covered electrode for producing highly wear resisting hardfacing deposits. It is particularly resistant to metal-to-metal wear, impact and shock. Suitable for reconditioning of rails, rail crossings and switch points, wearing parts such as dredger parts, polygon edges, bearing surfaces, striking tools, die tyres, wheel flanges, slide surfaces subject to heavy wear, reconditioning of lower dies, punches and others.Weld metal can be machined only by using sintered hard metal tipped tools. Even a large number of layers can be deposited without the need of intermediate buffer layers. A tough buffer layer using ESB 40 or EI 307B electrodes is solely required in case of very crack sensitive base metal. EH 340 can be welded in all positions, except vertical-down. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.
EH 515
DIN 8555 E 10 – UM – 60 CR

2,50

80-100

C

4,3

Hardness  (HRc)

42

pol17

pol7

3,20

100-120

Cr

35

4,00

140-170

Mn

0,30

5,00

180-200

Fe

rest

High recovery (160%), thick rutile-covered electrode depositing hypereutectic chromium hard metal. It is suitable for producing highly wear resisting deposits subject to abrasion by mineral particles. Suitable for hardfacing worn parts subject to mineral abrasion, such as, conveyor screws, mixer blades, concrete pump parts, slurry pumps, stirring and agitator parts, crusher parts, excavator bucket edges, coal planes subject to corrosion at elevated temperatures. The typical transverse cracks appearing in this hardfacing weld metal are not detrimental to abrasion resistance. Weld metal is machinable only by grinding. On difficult-to-weld steels, a buffer layer made with EIS 307 electrodes is required. Produces very smooth weld beads with flat penetration. Possible to use both with AC and DC.
EH 360 B
DIN 8555 E 6-UM-60(65W)T

2,50

70-90

C

0,4

Hardness  (HRc)

59

pol17

pol12

3,20

100-140

Si

0,5

4,00

140-180

Mn

0,3

5,00

180-210

Cr

7

V

0,5

 

Fe

rest

Thick basic-covered electrode for depositing tough and wear resisting overlays on structural members subjected to severe wear. It is particularly resistant to high meta-to-metal wear, moderate impact and abrasion. The weld metal has sufficient red hardness up to +600°C. It can be machined only by grinding. Suitable hardfacing applications where wear resistance at higher temperatures is a prime concern, as in hot cut offs, dies for pressure castings, rolls, crushers excavator parts, bucket edges and bucket teeth, drilling bits, coal planes, conveyor screws. Multi-layers deposits will be free of cracks, even without depositing intermediate buffer layers. Only in case of very crack sensitive base metals, a tough buffer layer, made with ESB 40 or EI 307B electrodes, is required. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.

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