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COATED ELECTRODES Guide to EN 499-1995 Tensile Symbol strength MPa 35 38 42 46 50

E

440–570 470–600 500–640 530–680 560–720

Yield strength MPa

Elongation min. %

355 380 420 460 500

22 20 20 20 18

46

Covered electrode for manual metal-arc welding.

Symbol

Impact energy Charpy-V Temp °C for 47J min.

Z No requirements A +20 0   0 2 –20 3 –30 4 –40 5 –50 6 –60

6

Symbol Welding position

1 All positions.

2

All positions, except vertical down. Flat butt weld, flat fillet weld,

3

horizontal-vertical fillet weld.

4

Flat butt weld, flat fillet weld. Vertical down and positions

5

according to symbol 3.

Symbol

Metal recovery %

Type of current

1 2 3 4 5 6 7 8

<105 <105 >105≤125 >105≤125 >125≤160 >125≤160 >160 >160

AC + DC DC AC + DC DC AC + DC DC AC + DC DC

2Ni

B

3

Symbol Coating type

A Acid B Basic C   Cellulosic R Rutile

RR

Rutile (thick coated) RC Rutile-Cellulosic RA Rutile-Acid RB Rutile-Basic

2

H5

Symbol

3.01

Hydrogen ml/100 g deposited weld metal, max.

H5  5 H10 10 H15

15

Chemical composition* Symbol

Mn Mo Ni

No symbol 2.0 –   – Mo 1.4 0.3–0.6  – MnMo    >1.4–2.0 0.3–0.6  –

1 Ni

1.4 –   0.6–1.2

2 Ni

1.4 –   1.8–2.6

3 Ni

1.4 – >2.6–3.8 Mn 1 Ni    >1.4–2.0 –   0.6–1.2

1 NiMo

1.4

0.3–0.6   0.6–1.2

Z Any other composition * If not specified Mo <0.2, Ni <0.3, Cr <0.2, V <0.05, Nb <0.05, Cu <0.3.

Single values shown in the table mean maximum values.

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