E 7018–H4
1235f ama 1235f

Alkaline electrode for welding non-alloy steels

AMA 1235F

AWS/ASME SFA – 5.1: E 7018–H4
DIN 1913 : E 51 55 B5
ISO 2560 : E 42 5 B 42 H5

Application/properties:

electrode for producing crack-free and tough welding joints; weld metal recovery is approx 115%. The electrode has good arc ability. Welds are X-ray quality .Suitable of welding steels having up to 0.4% C.

Weld metal analysis in % (typical values):

C Mn Si S P
0.08 1.40 0.4 <0.02 <0.02

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
A5 (%)
Impact energy (J)
ISO - V
20°C       -30°C+
500 – 620 > 400 > 22 140          120

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 65 – 90
3.25 450 90 – 130
4.0 450 140 – 180
5.0 450 190 – 230

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.