E 7018–H8
AWS/ASME SFA – 5.1:E 51 54 B 10
DIN 1913 :E 42 3 B42 H10
EN 499 :E 42 3 B 42 H 10
ISO 2560 :Application/properties:
This electrode is suitable for producing crack-free and tough welding joints; weld metal recovery is approx 115%. Smooth and clean welds blending into base metal without undercut. In accordance with the requirements of the Iranian Building Welding Code and also according to the supplementary standard for welding structures under seismic loads (AWS D1.8), this electrode is recommended for welding structures that are under dynamic stress conditions (earthquake).
Weld metal analysis in % (typical values):
| C | Mn | Si | S | P |
|---|---|---|---|---|
| 0.07 | 1.2 | 0.55 | < 0.02 | < 0.02 |
Mechanical Properties of all-weld metal:
(single values are typical values)
| Tensile Strength (N/mm2) | Yield Strength (N/mm2) | Elongation A5 (%) | Impact Energy (J) ISO-V +20°C -30°C |
|---|---|---|---|
| 500-640 | > 420 | > 22 | 140 90 |
| 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; 17Mn4; 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; A 242 Gr. 1-5; A 266 Gr. 1, 2, 4; A283 Gr. A, B, C, D; A285 Gr. A, B, C; A 299 Gr. A, B; A328; A366; A515 Gr. 60, 65, 70; A516 Gr. 55; A570 Gr. 30, 33, 36, 40, 45; A 572 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. 50API 5 L Gr. B, X42 – X56 | |
Remarks: