Stainless Steel

JACKSUN NOVA 312

AWS A5.4: E312-16

JACKSUN NOVA 312 is a rutile-coated stainless steel electrode conforming to AWS A5.4 E312-16 and EN ISO 3581-A E 29 9 R 26.
Designed for welding dissimilar steels (stainless steel to carbon steel, stainless steel to low alloy steels).
Exhibits very high strength, crack resistance, and ductility due to high ferrite content.
Commonly used for repair welding of difficult-to-weld steels, including high carbon steels, tool steels, and stainless castings.
Provides a smooth arc, minimal spatter, and easily detachable slag.
Suitable for buffer layers before hardfacing and for applications requiring high crack resistance.(As per AWS A5.4 E312-16 / EN ISO 3581-A E 29 9 R 26)

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

C	Mn	Si	Cr	Ni	Mo	P	S	Cu
≤ 0.15	0.5 – 2.5	≤ 1.0	28.0 – 32.0	8.0 – 10.5	≤ 0.75	≤ 0.04	≤ 0.03	0.75

2. Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J at RT)
Typical Values	650 – 720	420 – 470	28 – 32	40 – 55

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	50 – 80	AC / DCEP	20 – 22	✔	✔
3.2	1/8	70 – 110	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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