LH 11181 S
Basic electrode with very high yield strength
Product description
Basic electrode, depositing a highly crack-resistant steel with very high yield strength. Nickel, Chromium,
Molybdenum and Manganese deposition for welding similar fine-grained steels (operating temperature: -40 to + 450°C).
Examples: Coated hardened steels, low-alloy steels and pressure vessels.
Very good radiographic quality, very low diffusible hydrogen content (<3 ml H2/100g metal deposited), pleasant melting, stable arc,
low spatter and good slag release.
Product application instructions
General structural steels and high-strength
steels:
NF A 36-204: E 500T* . E 620T* ,. E 690T *.
DIN 17102: StE 590*. StE690*. TStE 500*. WStE
500*.
17MnCrMo 33, 11 NiMnCrMo 55, 16
NiCrMo 12, 12MnNiMo 55.
Werkstoff Nr.: 1.8928* – 1.7279* – 1.6780* – 1.6782*
– 1.6343* etc.
ASTM: A514 – A517 – A533GrA – A537 –
A678 – A633Gr C to E
N-A XTRA; N-A TRA70* (Thyssen).
Steel tubes:
(*) with possible preheating and postheating
API 5 LX: X70*. X75* . X80*
Anneal electrodes at 300°C for 2 hours before use.
Preheat base metal if necessary, depending on thickness and type of sheet (50 to 130°C).
Keep inter-pass temperature below 150°C.
Classification
| NFA 81-340 | AWS A 5.5 | DIN 8529 | EN ISO 18275-A |
|---|---|---|---|
| EY 69 Mn2NiCrMo B110 20 BH | E 11018-M | EY 6976 Mn2 NiCrMo BH5 20+ | E 69 4 Mn2NiCrMo B 4 2 H5 |
Chemical analysis (%)
| C | Mn | If | Ni | Cr | Mo |
|---|---|---|---|---|---|
| <0.10 | 1.5 | 0.40 | 2.1 | 0.40 | 0.50 |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | Av - ISO - V |
|---|---|---|---|
| >760 | >680 | >20 | + 20°C >120; - 40°C > 60 |
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.
