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Stainless Steel Electrodes

D&H 446L

AWS: SFA 5.4 E630-16 EN ISO CODE: 3581-A E Z R 3 2

D&H 446L is a unique electrode depositing a stainless steel weld metal having a nominal composition of 16Cr - 4.5Ni - 3.5Cu - Cb weld metal. The weld metal possesses excellent properties and attains high strength on heat treatment. It is ideally suited for welding martensitic precipitation hardening stainless steels of the type 17-4 PH etc.

Precaution

1. Ensure the electrodes are dry. Re-dry the electrodes at 250-300°C for one hour.

2. It is preferable to weld the 17-4 PH materials in the solution treated and quenched condition.

3. When welded in the solution treated and quenched condition, the 17-4 PH materials do not require preheat.

Approvals
    CE
CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiPSCrNiMoCbCu
Percent
0.0450.500.400.0250.02516.54.750.300.253.50


MECHANICAL PROPERTIES OF ALL WELD METAL

(Heated to 1025°C-1050°C, held for one hour, and air cooled to ambient, and then precipitation hardened at 610-630°C, held for four hours and air cooled to ambient.)

UTSElongation
(MPa)
(L= 5d)%
95012.0



CURRENT AND PACKING DATA: AC / DC(+)


Size (mm)
5x3504x350
3.15x350
2.5x350
Current Range (Amps)
150-180110-140
80-100
60-80
Weight / Carton (kgs)
2.52.5
2.5
2.5