EL8/EL12 Submerged Arc Welding Wire

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The EL8/EL12 submerged arc welding wire is the copper coated filler wire for carbon steel. This versatile welding consumable is well-suited for carbon steels and some low alloy steels applicable for industries of boilers, ships, pressure vessels and pipe, etc.

Our submerged arc welding wire is compatible with various kinds of fluxes, resulting in diversified wedability. Generally, this low alloy welding wire incorporating with fused flux is highly recommended for carbon steel requiring lower toughness, such as Q195 and Q215, etc. As for low alloy steels, such as 09Mn2, 16MnCu, 16Mn and 15MnTi, agglomerated flux is the preferred choice.

Standard
AWS EL8/EL12
GB/T: H08A
DIN: S1 BS: S1

Available diameter
2.0mm, 2.5mm, 3.2mm, 4.0mm, 5.0mm

Shielding gas
100% CO2 or 75%-95% Ar CO2 or 95% Ar CO2

Applicable flux
Fused flux: HJ431, HJ433 and HJ434, etc.
Agglomerated flux: SJ301, SJ302, SJ501, SJ502, SJ503 and SJ522, etc.

Chemical composition of deposited metal (%)

	C	Mn	Si	P	S	Cr	Ni	Cu
Typical	0.07	0.40	0.021	0.014	0.011	0.016	0.008	0.15
Standard	≤0.10	0.30-0.60	≤0.03	≤0.030	≤0.030	≤0.20	≤0.30	≤0.20

Note: Cu content in copper coated submerged arc welding wire should not be more than 0.35%.

Mechanical properties of deposited metal

	Rm (MPa)	Rel (MPa)	A (%)	Akv (J) (-20℃)
Typical	485	372	29	60
Standard	415-550	≥330	≥22	≥27

Recommended welding data for carbon steel (DC )

Wire diameter (mm)	Current (A)	Voltage (V)	Current type	Wire feed speed (m/h)		Interpasstemperature (℃)	Stick-out (mm)
1.6	350	30 ±2	DC/AC	18	±1.5	135-165	13-19
2.0	400	30 ±2	DC/AC	20	±1.5	135-165	13-19
2.5	450	30 ±2	DC/AC	21	±1.5	135-165	22-35
3.2	500	30 ±2	DC/AC	23	±1.5	135-165	22-35
4.0	550	30 ±2	DC/AC	25	±1.5	135-165	25-38
5.0	600	30 ±2	DC/AC	26	±1.5	135-165	25-38
6.0	650	30 ±2	DC/AC	27	±1.5	135-165	25-38

Note: If values of welding current or voltage exceed recommended range above, negative impacts will be led to mechanical properties and wedability of submerged arc welding wire.

Recommended welding data for low alloy steel (DC )

Wire diameter (mm)	Current (A)	Voltage (V)	Current type	Wire feed speed (m/h)		Stick-out (mm)	Interpasstemperature (℃)
1.6	250-350	26-29	DC/AC	18	±1.5	13-19	150 ±15
2.0	300-400	26-29	DC/AC	18	±1.5	13-19	150 ±15
2.5	350-450	27-30	DC/AC	20	±1.5	19-32	150 ±15
3.0	400-500	27-30	DC/AC	23	±1.5	25-38	150 ±15
3.2	425-525	27-30	DC/AC	23	±1.5	25-38	150 ±15
4.0	475-575	27-30	DC/AC	25	±1.5	25-38	150 ±15
5.0	550-650	27-30	DC/AC	25	±1.5	25-38	150 ±15
6.0	625-725	28-31	DC/AC	29	±1.5	32-44	150 ±15
6.4	700-800	28-32	DC/AC	31	±1.5	38-50	150 ±15

Note: If values of welding current or voltage exceed recommended range above, negative impacts will be led to mechanical properties and wedability of submerged arc welding wire.

Packaging
1. 25kg-300kg/coil fine round package
2. 200kg and 300kg large iron or wood plate package
3. 25kg/spool in iron basket package
4. Other packages are upon request.

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