OK 309L

Mô tả

OK 309L

Acid-rutile coated MMA-electrode giving an overalloyed weld metal. Suitable for welding stainless steel to mild and low alloyed steels. Also suitable for welding of transition layers when surfacing mild steel with stainless steel weld metal.

Classifications:

EN 1600:E 23 12 L R 3 2, SFA/AWS A5.4:E309L-16

 

Welding Current:	AC, DC+
Ferrite Content:	FN 12 – 22
Alloy Type:	Austenitic CrNi
Coating Type:	Acid Rutile

 

Typical Tensile Properties
Condition	Yield Strength	Tensile Strength	Elongation
ISO
As welded	470 MPa	580 MPa	32 %

 

Typical Charpy V-Notch Properties
Condition	Testing Temperature	Impact Value
ISO
As welded	20 °C	50 J
As welded	-10 °C	40 J

 

Deposition Data
Diameter	Current	Voltage	kg weld metal/ kg electrodes	Number of electrodes/kg weld metal	Fusion time per electrode at 90% I max	Deposition rate 90% I max
2.5 x 300 mm	45-90 A	28 V	0.60	85	38 s	1.1 kg/h
3.2 x 350 mm	65-120 A	29 V	0.60	45	51 s	1.6 kg/h
4.0 x 350 mm	85-180 A	31 V	0.60	29	51 s	2.5 kg/h