D&H 2209(NS) is a non-synthetic electrode depositing duplex stainless steel weld metal. It is ideal for welding duplex stainless steels. The weld metal possesses excellent corrosion resistance in marine & paper environments. Suitable for welding duplex stainless steels having Cr < 25% and other grades like UNS 32205, UNS 31803, etc.
1. Ensure the electrodes are dry. Re-dry the electrodes at 250-300°C for one hour.
2. Use stringer beads, short arc and smallest possible size, which helps in reducing the heat input.
Note : D&H 2209-15 (NS) conforming to AWS E2209-15 is also available.
|UTS||YS||Elongation||CVN Impact (J)||Hardness|
|(MPa)||(MPa)||(L= 5d)%||at Minus 30°C||(RC)|
Dia x Length
|Current Range (Amps)||150-180||110-140||80-110||60-80|
|Weight / Carton (kgs)||2.5||2.5||2.5||2.5|
Weld metal meets ASTM A262 Practice C, ASTM G-36, ASTM G-48A and NACE TM-01-77 specification at 350 MPa stress level, 16 bar pressure and 90°C temperature requirements in as welded condition.
Satisfactory with plunger diameter equal to 4 times the thickness of the specimen.