LH 981S
High-strength basic electrode
Product description
Highly crack-resistant basic electrode developed for welding fine-grained steels and all steels with generally high mechanical properties (Rm up to 800 MPa ). High-security assemblies, used as a bonding undercoat for hardfacing.
Pleasant melting, stable arc, low spatter, good slag release and good bead appearance.
Product application instructions
| General-purpose structural steels: | |||
| NF A 35-501 | : | A50-2*. A60-2*,3. E36-2*,3*,4* | |
| DIN 17100 | : | St50-2*. St60-2*. St70-2* | |
| ASTM : | : | A 678grC*. A709gr50*,100*. A710gr A
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| High-strength steels: | |||
| NF A 36-204: | : | E500T*. E550T*. E620T*. E690T*. | |
| DIN 17102 | : | StE460, 500*, 590*,690* | |
| Also suitable for welding heat-treatable steels such as:15CD4*. 25CD4*. 35CD4*.XC38. XC48*. 32C4….., as well as certain self-smoothing structural steels.
(*)with preheating and postheating for thicker sheets.
Welding positionsPA, PB, PC, PD, PE, PF Conditions of useRebaking 1 h, 350 °C + / – 10 °C = + |
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Classification
| AWS A 5.5 | DIN 8529 | EN ISO 18275-A |
|---|---|---|
| E 10018-M | EY 69 75 Mn2NiCrMo B | E 69 4 Mn2NiCrMo B T 42 H5 |
Chemical analysis (%)
| C | Mn | If | Mo | Ni | Cr |
|---|---|---|---|---|---|
| 0.05 | 1.7 | 0.3 | 0.4 | 2.0 | 0.4 |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | Av - ISO - V |
|---|---|---|---|
| 830 | >730 | >18 | -40°C: >47D / -60°C: 28 D |
Why choose this basic electrode?
Vacuum-packed 5 or 6Kg electrode for welding highly stressed steel assemblies (carbon and carbon manganese) (tensile strength up to 510 MPa).
It features excellent mechanical properties, particularly at low temperatures.
