E 7018-H8
1439f ama 1439f

Alkaline electrode for welding non-alloy steels

AMA 1439F

AWS/ASME SFA – 5.1: E 7018–H8
DIN 1913 : E 51 54 B 10
EN 499 : E 42 3 B42 H10
ISO 2560 : E 42 3 B 42 H 10
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Application/properties:

This basic electrode has good tensile strength and high toughness; This electrode is recommended according to the requirements of the Iranian Building Welding Code, as well as in accordance with the standard for the welding of structures under seismic loads (AWS D1.8) for the welding of structures under dynamic stress conditions (earthquakes).

Weld metal analysis in % (typical values):

C Mn Si S P
0.08 1.3 0.4 <0.02 <0.02

Mechanical Properties of all-weld metal:

(single values are typical values)

اTensile Strength
( N/mm 2 ) 		Yield Strength
( N/mm 2 ) 		Elongation
A5 (%) 		Impact energy (J)
ISO -V
30°C-
500-610 >420 >22 80
Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 65– 90
3.25 450 100– 140
4.0 450 140– 190
5.0 450 190– 250
6.0 450 260– 340

Materials:

DIN Standard St 37-2 to St 60-2; St 37-3 to St 52-3; St 37.0 to ST 52.0; St 37.4 to ST 52.4; StE 210.7 to StE 360.7; StE 210.7 TM to StE 360.7 TM; St 35.8 to St 45.8; HI; HII; 17mn 4; GL-A 36 to GL-E 36; StE 255 to StE 355; WStE 255 to WStE 355; TStE 255 to TStE 355; TT ST 35 N; GS-38; GS-52
EN Standard S235JR to E335; S235J2G3 to S355J2G3; P235T1 to P355T1; P235T2; P355T2; L210 to L360NB; L290MB to L360MB; P235G1TH; P255G1TH; P235GH; P265GH; P295GH; S355G1S to S355G3S; S255N to S355N; P255NH to P355NH; S255NL to S355NL.
ASTM Standard A27 a.A36 Gr. all; A214; A242 Gr. 1-5; A266 Gr. 1, 2, 4; A283 Gr. A, B, C, D; A285 Gr.A, B, C; A299 Gr.A, B; A328; A366; A515 Gr.60, 65, 70; A516 Gr.55; A570 Gr.30, 33, 36, 40, 45; A572 Gr. 42, 50; A606 Gr. all; A607 Gr.45; A656 Gr.50, 60; A668 Gr.A, B; A907 Gr.30, 33, 36, 40; A841; A851 Gr.1, 2; A935 Gr.45; A936 Gr.50. APl 5 L Gr. B, X42-X56

Redrying:

required at 300°C to 350°C for 2 hours.