Sanicro® 56 is a low carbon nickel-chrome-molybdenum alloy of type alloy C-276. It is a versatile alloy with excellent wet corrosion resistance in oxidizing and especially in reducing media. However, in oxidizing chloride containing environments alloy UNS N06022 (2.4602) is preferred where Sanicro® 54 is a better matching welding consumable. Applications for Sanicro 56 are found in aggressively corrosive media such as chemical processing plants, pollution control, pulp and paper production, waste treatment and for the recovery of sour natural gas.
Sanicro® 56 is used for joining alloy UNS N10276 (2.4819) and other nickel-chrome-molybdenum alloys. It can also be used for dissimilar metal joining of nickel alloys, stainless steels and low-alloy steels. Sanicro® 56 can be used for surfacing low alloyed steels.
- ISO 18274: NiCr15Mo16Fe6W4/Ni 6276
- AWS A5.14/ASME SAF-5.14: ERNiCrMo-4
- W.Nr.: 2.4819
Contact your nearest sales office for details.
Please note that the Werkstoff Nr. corresponds to the base material of the same grade.
Chemical composition (nominal) %
Applications for Sanicro® 56 are found in cryogenics, components in pulp and paper plants such as bleaching vessels, flue gas scrubber systems, components in sour-gas service, sulphuric acid coolers, chlorine gas, hypochlorite and chlorine dioxide atmosphere. Sanicro® 56 is also used in combustion-resistant components for high pressure oxygen service.
Forms of supply
Sanicro® 56 is available in wire and rods.
Weld Metal Characteristics
The following data is typical for non heat treated all-weld metal made by the TIG, MIG or PAW methods using argon as shielding gas.
The microstructure is fully austenitic.
|Yield strength, Rp0.2||MPa||470||-|
|Tensile strength, Rm||MPa||750||-|
|Reduction in area, Z||%||45||-|
|Impact strength, Charpy V||J||170||130|
Recommendation welding data
Electrode positive is used to give good penetration in all types of welding joint. The table shows common conditions for MIG welding.
|Wire diameter, mm||Wire feed, m/mm (in./min)||Current, A||Voltage, V||Gas, l/min.(CFH)|
|Spray arc welding|
|1.0 (0.039)||6 - 12 (236-472)||150 - 230||26 - 31||22 (46)|
|1.2 (0.047)||5 - 9 (197-354)||170 - 280||27 - 32||22 (46)|
|1.6 (0.063)||3 - 5 (118-197)||230 - 370||29 - 33||22 (46)|
|Pulsed arc welding 1)|
|1.2 (0.047)||3 - 10 (118-394)||150 - 250||23 - 31||20 (42)|
1) Pulse parameters:
- Peak current 300 - 400 A
- Background current 50 - 150 A
- Frequency 80 - 120 Hz
Shielding gases are used for sufficient protection of the weld pool.
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.