Stainless Steel

JACKSUN NOVA 309L

SPECIFICATIONS - AWS A5.4 E309L-16

JACKSUN NOVA 309L is a rutile-coated stainless steel electrode conforming to AWS A5.4 E309L-16. It is specially designed for dissimilar welding (carbon steel/low alloy steel to stainless steel), buffer layers, and stainless overlays. The low carbon content (L grade) minimizes the risk of intergranular carbide precipitation and improves corrosion resistance in service at elevated temperatures.

1. Chemical Composition of Weld Metal (% by weight)

C	Mn	Si	Cr	Ni	Mo	S	P	Cu
≤0.04	0.5–2.5	≤0.90	22.0–25.0	12.0–14.0	0.75	≤0.03	≤0.04	0.75

2. Mechanical Properties of Weld Metal

Property	UTS (MPa)	Proof Strength (MPa)	Elongation (%)	Impact Toughness (J at RT)
Typical Values	520–550	330–370	32–36	55–70

3. Dimension, Current Condition & Packing Data (SMAW Welding)

Size (mm)	Size (inch)	Current Range (A)	Polarity	Voltage (V)	Packing (5 kg)	Packing (20 kg)
2.5	3/32	60–90	AC/DCEP	20–25	✔	✔
3.2	1/8	80–120	AC/DCEP	22–28	✔	✔
4.0	5/32	100–150	AC/DCEP	24–30	✔	✔
5.0	3/16	130–180	AC/DCEP	26–32	✔	✔

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