Stainless Steel

JACKSUN NOVA 320

AWS A5.4: E320-16

JACKSUN NOVA 320 is a rutile-coated stainless steel electrode designed for welding alloy 320 (25Cr–20Ni–Nb stabilized austenitic stainless steel).
Provides weld metal with excellent resistance to oxidation, scaling, and high-temperature corrosion.
The presence of niobium ensures stabilization against carbide precipitation, improving resistance to intergranular corrosion.
Recommended for chemical processing plants, heat exchangers, furnace components, and petrochemical applications where service temperatures are high.
Weld deposit has an austenitic structure with niobium carbides, maintaining toughness and strength.(As per AWS A5.4 E320-16 / EN ISO 3581-A E 25 20 Nb R 26)

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

C	Mn	Si	Cr	Ni	Nb + Ta	Mo	Cu	P	S
≤ 0.08	0.5 – 2.0	≤ 1.0	19.0 – 21 .0	32.0 – 36.0	8 × C – 1.0 max	2.0-3.0	3.0-4.0	≤ 0.03	≤ 0.02

2. Typical Mechanical Properties of Weld Metal (As-Welded)

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ RT)
Typical Values	600 – 650	400 – 450	32 – 35	60 – 80

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 – 22	✔	✔
3.2	1/8	80 – 120	AC / DCEP	22 – 24	✔	✔
4.0	5/32	110 – 150	AC / DCEP	24 – 26	✔	✔
5.0	3/16	140 – 190	AC / DCEP	26 – 28	✔	✔

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