DAIKOWM 25.35Nb

GMAW
  • HIGH TEMPERATURE ALLOYS
HP10Cb

Description

Solid wire for matching HP10Cb alloys
These consumables are designed for joinings and building up on identical and similar high heat resistant CrNi cast steel and centrifugal and mould cast parts. The weld metal overmatches 800 type alloys and is suitable for low sulphur, carbon enriching atmosphere up to 1150° C, such as reformer ovens in petrochemical installations. It has excellent resistance to thermal shock and fatigue. 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.
Specifications
Werkstoff Number
1.4853
Shielding
M12, M13
Positions
PA, PB, PC, PD, PE, PF, PG
Current
DC+
Packaging Type
Drums, B300, D200 and D100 spools.

Pren

26.99
Chem. Comp. %
DEFAULT
C
0.1
Mn
3.4
Ni
35
Cr
26
Nb
0.8
Mo
0.3
Si
0.4
Cu
0.1
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
610
Yield strength Rp0.2 MPa
-
400
Elongation A (L0=5d0) %
-
34
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
1 mm
1.2 mm
Ampere
170A - 210A
180A - 260A
Voltage
24V - 28V
26V - 30V
Packaging
Ø 0,8÷1,6mm
Ø 0,8÷1,6mm
Packaging Type
product.packaging_types.product.packaging_types.product.packaging_types.Drums, B300, D200 and D100 spools.
product.packaging_types.product.packaging_types.product.packaging_types.Drums, B300, D200 and D100 spools.
Description

Application

This electrode is specifically designed for depositing filler metal intended for castings with similar composition. The alloy, developed based on type 800 with increased chrome and nickel content, offers superior resistance to both carburization and oxidation. It is suitable for use at temperatures up to 1100 °C and ensures excellent resistance to thermal shock and fatigue. The main applications include welding of centrifugally cast pyrolysis coils, reformer tubes, return bends, and tee connections in the petrochemical sector. Generally, neither preheating nor post-weld heat treatment (PWHT) is required, while it is recommended to maintain interpass temperatures below 150 °C.

Alloy Type

0.1%C-25%Cr-35%Ni-0.6%Nb (HP10Cb) austenitic cast alloy for heat resisting service.

Microstructure

In the as-welded condition the weld metal microstructure consists of austenite with some grain boundary carbides.

Materials

  • EN W.Nr.: 1.4850, 1.4859, 1.4876
  • ASTM: A351 CT15C
  • UNS: N08800, N08810, N08811
  • PROPRIETARY: Centralloy® H101, 4859 (Schmidt+Clemens), Manaurite® 900 (Manoir Industries), Incoloy® 800, 800H, 800HT (Special Metals), Sanicro® 31 (Sandvik), Nicrofer 3220 (VDM), Paralloy CR39W, CR32W (Doncasters Paralloy), Thermalloy T52 (Duraloy)

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