E 7018 –1–H4R
AWS/ASME SFA – 5.1:E SY 42 76 Mn B
DIN 8529 :E 42 6 B 42 H 5
EN 499 :Applications and Properties:
Basic electrode that uses nano technology in a humid environment with 80% humidity, the electrode coating is resistant to moisture absorption for 9 hours. This electrode is suitable for producing crack-free and tough welding joints and also for welding steels having a carbon content of up to 0.6%. The weld metal has very low hydrogen content and is resistant to ageing. Approved for rail joint welding; Good gap bridging properties. Because of its double covering (up to 3.25 mm), the electrode has a stable and concentrated arc is therefore well suited for positional welding. Welds are if X-ray quality. CTOD-tested for offshore application.
Weld Metal analysis in % (typical values):
| P | S | Si | Mn | C |
|---|---|---|---|---|
| 0.02> | 0.02> | 0.30 | 1.50 | 0.06 |
Mechanical Properties of all-weld metal:
| Tensile Strength (N/mm²) |
Yield Strength (N/mm²) |
Elongation A5 (%) |
Impact Value (J) ISO - V |
Heat Treatment | |
|---|---|---|---|---|---|
| +20°C | -60°C | ||||
| 500 - 640 | > 420 | > 22 | 180 | 70 | AW |
| 500 - 640 | > 420 | > 22 | 160 | 60 | SR |
| Welding Parameters | ||
|---|---|---|
| Amperage (A) | Length (mm) | Diameter (mm) |
| 95 - 65 | 350 | 2.5 |
| 140 - 90 | 450 | 3.25 |
| 185 - 140 | 450 | 4.0 |
| 240 - 180 | 450 | 5.0 |
| 330 - 250 | 450 | 6.0 |
Materials:
Materials:
| DIN Standard | St 37-2 to St 60-2; St 37-2 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 toStE 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 - 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 |
Remarks: