Cr25Ni35Nb
Classifications
| EN ISO 14343-A | Material-No. |
|---|---|
| WZ 25 35 Zr | 1.4853 |
Characteristics and field of use
Cr25Ni35Nb is suitable for joinings and building up on identical and similar high heat resistant CrNi cast steel (centrifugal- and mould cast parts), such as
1.4848 G–X 40 CrNiSi 25 20
1.4852 G–X 40 NiCrSiNb 35 25
1.4857 G–X 40 NiCrSi 35 25
The weld deposit is applicable in a low sulphur, carbon enriching atmosphere up to 1150° C, such as reformer ovens in petrochemical installations.
Typical analysis in %
| C | Si | Mn | Cr | Ni | Nb | Ti | S,P | Fe |
|---|---|---|---|---|---|---|---|---|
| 0.4-0.55 | 1.0-2.0 |
≤1.5 |
24-27 | 34-37 | 0.8-1.2 | 0.05-0.15 | ≤0.02 | balance |
Mechanical properties of the weld metal
| Yield strength RP0,2 | Tensile strength Rm | Elongation A |
|---|---|---|
| MPa |
MPa | % |
| >480 | >680 | >8 |
Welding instruction
Clean welding area carefully. No preheating or post weld heat treatment. Keep heat input as low as possible and interpass temperature at max. 150° C.
| Rod diameter x le7ngth（mm） | Current type | Shielding gas (EN ISO 14175） |
|---|---|---|
| 2.0*1000 |
DC（-） |
|1 |
| 2.4*1000 | DC（-） | |1 |
| 3*1000 | DC（-） | |1 |
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