Sandvik 28.34.HT (Welding wire)
Datasheet updated 2012-08-02 19:11:11 (supersedes all previous editions)
Sandvik 28.34.HT is an austenitic filler material for welding the high-temperature grade Sandvik 353 MA*. It is characterized by high creep strength, very good resistance to oxidation, very good resistance to carburization and good weldability. Sandvik 28.34.HT can also be used for joining other steels, when resistance to oxidation in air up to 1200°C (2190°F) is required. Sandvik 28.34.HT is available as wire and rods.
Filler metal
| C | Si | Mn | P | S | Cr | Ni | N | R.E. |
|---|---|---|---|---|---|---|---|---|
| max | max | |||||||
| 0.04 | 0.7 | 0.5 | 0.020 | 0.010 | 27.5 | 35 | 0.15 | * |
* Rare earth metals (lanthanides)
Chemical composition - all-weld metal
The following data is typical for non heat treated all-weld metal made by TIG welding with Ar shielding gas.
| C | Si | Mn | P | S | Cr | Ni | N | R.E. |
|---|---|---|---|---|---|---|---|---|
| max | max | max | ||||||
| 0.04 | 0.6 | 1.7 | 0.020 | 0.010 | 27.5 | 35 | 0.15 | * |
* Rare earth metals (lanthanides)
Microstructure - all-weld metal
Fully austenitic matrix.
Mechanical properties- all-weld metal
|
Temperature
|
oC
|
20
|
|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
410
|
|
Tensile strength, Rm
|
MPa
|
600
|
|
Elongation, A
|
%
|
33
|
|
Impact strength, Charpy V
|
J
|
163
|
|
Hardness, Vickers
|
HV
|
202
|
Physical properties - all-weld metal
|
Temperature, °C
|
20 | 100 | 300 | 500 | 700 | 900 | 1100 |
|---|---|---|---|---|---|---|---|
|
Thermal conductivity, W/m
|
11 | 13 | 17 | 20 | 23 | 26 | 29 |
Thermal expansion per °C, from 20°C (68 oF) to 400°C (750 oF) 17.6 x 10-6
Density, g/cm3, at 20 oC (68 oF) 7.9
Corrosion resistance - all-weld metal
Oxidation resistance
Sandvik 28.34.HT has good resistance to oxidation and can be used in air up to 1200°C (2190 oF).
Recommended welding data
TIG welding
The parameters for TIG welding depend largely upon the base metal thickness and the welding application.
Electrode negative and a shielding gas of argon or helium should be used to prevent oxidation of the weld metal.
* 353 MA is a trademark owned by Outokumpu OY.
Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials.
Article functions
Related information
Print this datasheet
Export to PDF
Download this datasheet as PDF or send by email.
Download as PDF
Send PDF via email