Special Design for Aws A5.20 Welding Material - EL8/EL12 Submerged Arc Welding Wire – Yichen

EL8E12

EL8/EL12 Submerged Arc Welding Wire

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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