E 9018-B9–H4
AWS/ASME SFA-5.4E CrMo 91B 42 H5
EN1599:Application/properties:
Basic core wire alloyed electrode suited for high temperature martensitic 9%Cr-1%Mo-V-Nb-N steels, in turbine and boiler fabrication and in the chemical industry especially for T 91 and P91 steels and operating temperatures up to 650 °C . High creep ruptures strength and good toughness properties under long term stresses.
Weld metal analysis in % (typical values):
| N | Nb | V | P | S | Ni | Mo | Cr | Si | Mn | C |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.04 | 0.06 | 0.2 | < 0.01 | < 0.01 | 0.45 | 1 | 9 | 0.2 | 0.85 | 0.09 |
Mechanical Properties of all-weld metal:
(single values are typical values)
| Impact energy (J) ISO-V | Elongation (%) A5 | Yield Strength (N/mm2) | Tensile Strength (N/mm2) | Heat treatment |
|---|---|---|---|---|
| 20°C+ | ||||
| 80 | 17< | 530< | 620< | T |
Tempered 2 hrs at 760°C, Air cooling
| Welding Parameters | ||
|---|---|---|
| Amperage (A) | Length (mm) | Diameter (mm) |
| 60 - 90 | 250 | 2.5 |
| 90 - 130 | 350 | 3.25 |
| 140 - 180 | 350 | 4.0 |
| 170 - 230 | 450 | 5.0 |
Materials:
| DIN Standard | 1.4903 X10CrMoVNb9-1 |
| ASTM Standard | ASTM A199 Gr. T91 ; A335 Gr .P91 (T91) ; A213/213M Gr. T91 |
Remarks: