Mild Steel

JACKSUN ULTRA 12

AWS A5.1: E6012

JACKSUN ULTRA 12 is a rutile-type, general-purpose mild steel electrode designed for easy arc striking and smooth weld bead appearance.
Suitable for all-position welding, especially for sheet metal, structural steel, and light fabrication work.
Produces a medium penetration arc with smooth weld deposits and easy slag removal.
Provides stable arc, even on low open circuit voltage (OCV) transformers.
Ideal for fillet and butt welds in thin sections.(Conforms to AWS A5.1 E6012 and EN ISO 2560 standards)

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

C	Mn	Si	Ni	P&S	Mo	Cr
≤ 0.20	0.60 – 1.20	≤ 1.00	0.30	≤ 0.035,≤ 0.035V	0.30	0.20

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ 0 °C)
Typical Values	450 – 500	360 – 400	20 – 25	35 – 50

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 – 90	AC / DC±	20 – 22	✔	✔
3.2	1/8	80 – 120	AC / DC±	22 – 24	✔	✔
4.0	5/32	110 – 160	AC / DC±	24 – 26	✔	✔
5.0	3/16	150 – 210	AC / DC±	26 – 28	✔	✔

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