E 9015-B91–H4
AWS/ASME SFA-5.4:E CrMo 91B 42 H5
EN 1599: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.
| C | Mn | Si | Cr | Mo | Ni | S | P | V | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.09 | 0.6 | 0.2 | 9 | 1 | 0.5 | <0.01 | <0.01 | 0.2 | 0.05 | 0.04 |
(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 |
|---|---|---|---|---|
| >680 | > 550 | >17 | >47 | T |
Tempered 2 hrs at 760°C, Air cooling

| 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 | 1.4903 X10CrMoVNb9-1 |
| ASTM Standard | ASTM A199 Gr. T91 ; A335 Gr .P91 (T91) ; A213/213M Gr. T91 |