E 505-15–H8
AWS/ASME SFA-5.4:E 8018-B8–H8
AWS/ASME SFA-5.5 :E CrMo 9 B 20+
DIN 8575 :E CrMo 9B 42 H10
EN 1599:Application/properties:
Electrode for welding of boilers, pressure vessels subjected to operating temperatures up to 600°C. Typical applications are: petrochemical process plant, hydro crackers in chemical industries.
| C | Mn | Si | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| 0.07 | 0.85 | 0.3 | 9.5 | 1 | <0.02 | <0.02 |
(single values are typical values)
| Tensile Strength ( N/mm 2 ) | Yield Strength ( N/mm 2 )(%) | Elongation A5,(%) | Impact energy (J) ISO - V 20°C+ | Heat treatment |
|---|---|---|---|---|
| 620 - 750 | > 500 | 20 | 80 | T |
| Welding Parameters | ||
|---|---|---|
| Diameter (mm) | Length (mm) | Amperage (A) |
| 2.5 | 250 | 60– 90 |
| 3.25 | 350 | 90– 130 |
| 4.0 | 350 | 140– 180 |
| 5.0 | 450 | 170– 230 |
| DIN Standard | X12 CrMo 91, X7CrMo 91, G-X12 CrMo 10 1 |
| Other Standard | A217 Gr. C12; A 234 Gr. WP9; A335 Gr.P9 |
