EM12/EM12K Submerged Arc Welding Wire

EM12EM12K

EM12/EM12K Submerged Arc Welding Wire

The EM12/EM12K submerged arc welding wire is a copper coated filler wire. This welding consumable is characterized by superior weldability, stable arc, flawless bead appearance and easy slag removal. Our product is widely applied to welding of carbon steel (e.g. Q195, Q215 and Q235, etc.) and low-strength alloy steel such as 16MnCu and 16Mn, etc.

Our model of submerged arc welding wire is capable of catering to most welding conditions and requirement, including multi-layer and multi-pass welding in large current, as well as double-sided single-pass welding and high-speed welding, etc. This metal welding wire has been extensively applied to boilers, pressure vessels, bridges and ships, etc.

Standard
AWS EM12K
GB /T:H08MnA
DIN:S2 BS:S2

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

Applicable flux
Fused fluxes: HJ230, HJ330, HJ433 and HJ434, etc.
Agglomerated flux: SJ101, SJ107, SJ201, SJ301, SJ302, SJ501 and SJ503, etc.

Chemical composition of deposited metal (%)

C Mn Si P S Cr Ni Cu
Typical 0.08 0.91 0.04 0.018 0.012 0.02 0.01 0.15
Standard ≤0.10 0.80-1.10 ≤0.07 ≤0.030 ≤0.030 ≤0.2 ≤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 (HJ230 + Q215)

Rm (MPa) Rel(MPa) A (%) Akv (J)(-20℃)
Typical 501 388 29 68
Standard 410-550 ≥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. 20kg plastic spool (Only for wire in Φ2.0mm)
2. 25kg/50kg/150kg/250kg/350kg transverse wind without core
3. 30kg/50kg bundle
4. 250kg drum


  • EM12/EM12K Submerged Arc Welding Wire Related Video: