• Fluxes can be further classified as active or neutral:ACTIVE FLUXES are those fluxes that will cause a substantial change in the weld metal chemistry whenwelding voltage (and consequently, the amount of flux fused) is changed. Active fluxes generally add largeamounts of manganese and silicon to the weld metal and cause the weld strength to increase. If an activeflux is used for multipass welding, excessive manganese and silicon build-up can occur, causing the weld tobe brittle and crack prone. Active fluxes should be limited in the number of passes, especially over rust andmill scale.nWhen an active flux is used for multipass welding, the voltage must be carefully controlled to avoidexcessive build-up of manganese and silicon. Active fluxes should not be used to multipass weld platesmore than 1" (25 mm) thick.NEUTRAL FLUXES are fluxes that will not cause a significant change in the weld metal chemistry evenwith variations of welding voltages. Neutral fluxes will not significantly affect the strength of the weld metalregardless of the welding voltage used or the number of passes. As a rule neutral fluxes should be specified for multipass welding.

• We are supply submerged arc welding wires of high quality with the best competitive prices. we are main supply the specifications like AWS EL8, EL12, EM12, EM12K and EH14 etc.
• Wire Size φ1.6mm, φ2.0mm, φ2.4mm, φ3.2mm, φ4.0mm, φ4.8mm was available.
• Packing: 25~350kg/Coil, 25kg/Metallic basket, 250kg/drum.
• Lead Time: Within 15days after received 30% down payment.

EL12 is a low manganese and silicon wire. It provides excellent ducktility and crack resistance. Typical applications include lap welds, build-up, or repair welding prior to machining. 

Item	Chemical Composition of wire
EL12	C	Mn	Si	P	S	Cr	Ni	Mo	Cu	Other
	0.07	0.40	0.021	0.011	0.011	0.016	0.008	-	0.15	-

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation（%）	Charpy V-Notch (J) (-20℃)
EL12/SJ301	≥330	415~550	≥24	≥27
EL12/SJ501	≥330	415~550	≥22	-

 

EM12K is a medium manganese and silicon wire with nominal rust and mill scale tolerance. Typical applications inculde structural steels, medium strength pressure vessels, wind tower bases, shipbuilding,barge, and offshore oil rig fabrication. 

Item	Chemical Composition of wire
EM12K	C	Mn	Si	P	S	Cr	Ni	Mo	Cu	Other
	0.07	1.00	0.22	0.011	0.011	0.013	0.008	-	0.11	-

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation（%）	Charpy V-Notch (J) (-20℃)
EM12K/SJ301	≥400	480~650	≥24	≥27
EM12K/SJ101G	≥400	490~650	≥22	≥80
EM12K/SJ501	≥400	480~650	≥22	-

 

EH14 is a high manganese wire for single or multipass welding. Typical applications include seam welding on hot water tanks, valves, fittings, and heavy vessel fabrications. 

Item	Chemical Composition of wire
EH14	C	Mn	Si	P	S	Cr	Ni	Mo	Cu	Other
	0.08	1.85	0.021	0.016	0.015	0.013	0.008	-	0.11	-

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation（%）	Charpy V-Notch (J) (-20℃)
EH14/SJ101	≥400	480~650	≥22	≥90
EH14/SJ501	≥400	490~660	≥22	-

Sub arc Flux LJ-SJ101

AWS A5.17 F7A2-EM12K, F7A4-EH14, F7A2-EA2-A2; EN760 SA FB 1 65 AC H5;

DIN BFB 165AC12MHP5

LJ-SJ101 is an Agglomerated Fluoride-Basic flux. Basicity Index: 1.8  Grain Size: 10-60 meshes. Designed for general steel structure fabrications etc. It can be operated with AC and DC, the wire shall be connected to positive pole when applying DC. It has steady arc, beautiful bead appearance and easy slag removing. the deposit metal owns perfect low temperature impact toughness.

Item	Chemical Composition of flux
LJ-SJ101	SiO₂+TiO₂	CaO+MgO	Al₂O₃+MnO	CaF₂	S	P
	15~25	25~35	20~30	15~25	≤0.06	≤0.06

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation （%）	Charpy V-Notch (J)
				0℃	-20℃	-40℃
SJ101/EM12K	≥330	415~550	≥22	≥110	≥80	≥27
SJ101/EH14	≥400	480~660	≥22	≥110	≥80	≥27

 

Sub arc Flux LJ-SJ101Q

AWS A5.17 F7A2-EM12K, F7A4-EH14; EN760 SA FB 1 65 AC H5;

DIN BFB 165AC12MHP5

LJ-SJ101Q is an Agglomerated Fluoride-Basic flux. Basicity Index: 1.9  Grain Size: 10-60 meshes. Designed for Bridge girders fabrication etc., It privides excellent low temperature impact toughness with a variety of wires. It has steady arc, excellent bead appearance and easy slag removal.

Item	Chemical Composition of flux
LJ-SJ101Q	SiO₂+TiO₂	CaO+MgO	Al₂O₃+MnO	CaF₂	S	P
	14~23	24~35	20~30	15~25	≤0.06	≤0.06

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation （%）	Charpy V-Notch (J)
				-20℃	-30℃	-40℃
SJ101Q/EM12K	≥400	490~500	≥22	≥90	≥80	≥47
SJ101Q/EH14	≥400	480~650	≥22	≥90	≥80	≥47

Sub arc Flux LJ-SJ101G

AWS A5.17 F7A2-EM12K, F7A4-EH14, F8A2-EA2-A2; EN760 SA FB 1 55 AC H5;

DIN BFB 165AC12MHP5

LJ-SJ101G is an Agglomerated Fluoride-Basic flux. Basicity Index: 1.8  Grain Size: 12-60 meshes. Designed for spiral seam welding X60-X80 API grade pipes or water pipes, it is suitable for submerged-arc multi-layer welding, both sides welding, multi-wire welding and narrow gap welding of thick steel of plate. it provides good bead appearance and slag easy removal. it has high impact toughness at low temperature with superior crack resistance.

Item	Chemical Composition of flux
LJ-SJ101G	SiO₂+TiO₂	CaO+MgO	Al₂O₃+MnO	CaF₂	S	P
	18~25	28~35	23~30	16~25	≤0.06	≤0.06

 

Combination	Mechanical Properties of weld metal
Wire/Flux	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation （%）	Charpy V-Notch (J)
				-20℃	-40℃	-50℃
SJ101G/EM12K	≥400	490~600	≥22	≥60	-	-
SJ101G/EH14	≥420	510~600	≥22	≥70	≥57	≥27
SJ101G/EA2	≥500	600~700	≥20	≥60	≥55	≥34

 

General steel structural fabrications flux

High tensile strength steels flux

API grade pipes and water pipes flux

The bridge fabrications flux

 

The Packing details & Lead Time of Submerged Arc Flux and Solid Wires:

1. Flux: 25kg/Bag (Brown paper bag with moistureproof plastic lining)  40Bags/Pallet 20-24Tons/20' Container   
2. Flux: 20kg/Drum   40Drums/Pallet      16Tons/20'Container
3. Flux: 1000kgs/Bulk bag    20Tons/20'Container
4. Lead Time:  Within 15 days after received 30% down payment or L/C.
5. Sub Arc Wire:  25kg/Coil/Carton      42Cartons/Pallet    21Tons/20'Container
6. Sub Arc Wire:  250kg/Coil    4Coils/Pallet      20Tons or Above/20'Container
7. CO2 WIRE AWS ER70S-6:  15kg/Spool/Carton   72Cartons/Pallet   23.76Tons/20'GP
8. Lead Time: Within 15 days after received 30% down payment or L/C.

 

LJ-SJ501 is an Agglomerated Aluminate-Rutile flux. Basicity Index: 0.8  Grain Size: 12-60 meshes. Designed for small cyliner gas and LPG tanks etc. The flux suitable for high speed welding, very good weld apperance and good slag detachability, be known for excellent resistance of porosities.

Notes on Usage:

1. Dry the flux at 300~350℃ for 2 hours before use.
2. Remove rust, scales, oil, water, dirt etc. before welding.