Kobatek 326
gENERAL DESCRIPTION
Kobatek 326 has a very crack proof weld metal. It is suitable for the joining and welding of special steels used at both sub-zero and elevated temperatures, also recommended for 5-9 % nickel steels and nickel alloys such as Inconel 600, Incoloy 800, Nimonic 75, NiCr 80/20, NiCr 60/15, NiCr15Fe and dissimilar ferrous metal combinations, including stainless steel to steel
Kobatek 326 provides the ultimate fatigue resistance for highly stressed constuctions using thick sections. The weld metal has a good impact strength down to -196°C and a good tensile strength up to 1000°C. Also the corrosion and oxidation resistance are good.
Mechanical Properties, Typical, All Weld Metal
| Tensile Strength | : | 66 – 71 | (kg/mm²) | ||
|---|---|---|---|---|---|
| Elongation (L=5d) | : | 40 – 44 | (%) | ||
| Hardness | : | 160 – 200 | (HB) |
Approvals and Certificates
Certificates
| GOST | TSEK |
Application Areas
- Joining or repairing of heavily constrained massive sections
- Bearing rings of rotary kilns
- Walls of ball mills
- Ball mill driving gears, journals and collars
- Blast furnaces
- Flame hardening equipments
- Heat treating trays
- Pipe flanges
- Machine parts subject to thermal cycling and sub-zero temperatures such as cryogenic equipments
- Joining dissimilar combinations of steels
Welding Parameters / Packing and Diameter Informations
Current Type and Polarity : DC (+)
| Diameter x Length (mm) |
Procedure – A Current (Amper) |
Procedure – B Current (Amper) |
Weight (kg/box) |
|---|---|---|---|
| 2.50 x 250 |
80 – 90 | 60 – 80 | 2,5 |
| 3.25 x 300 |
100 – 110 | 70 – 100 | 5 |
| 4.00 x 350 |
120 – 140 | 100 – 110 | 5 |
PROCEDURE – A
High Amperage Welding
High amperage welding for heavy sections and large parts, maximum deposition rates.
PROCEDURE – B
Low Amperage Welding
Low amperage welding for small sections and parts which must not be overheated, minimum dilution and low heat input.
