NIKKO ARC WELDING ELECTRODES - yewcheong.com.sg 2 - nikko welding consumable… · NIKKO ARC...

NIKKO ARC WELDING ELECTRODES

DISTRIBUTED BY:

GA - 24For Mild Steel and Medium Tensile Steel

Description

GA-24 is an iron powder titanium

type electrode designed for highspeed and high efficiency weldingin flat and horizontal fillet positions.It has excellent weld ability, easyslag removal and producesbeautiful bead appearance.The metal recovery with respect to core wire is 180%.

Applications

For flat and horizontal fillet weldingof ship building, storage tanks, building construction. Finish welding of multi layer welding.

Instructions for Welding

1. If the electrodes become damp, dry the electrodes at 80ºC ~ 120ºC for 30 ~ 60 minutes before use.2. For horizontal fillet position, use contact welding method.

C

0.06

Si

0.29

Mn

0.90

P

0.016

S

0.011

Yield Point

464 N/mm²47.0 kgf/mm²

Tensile Strength

543 N/mm²55.4 kgf/mm²

Elongation

26.6%

Charpy Impact Value

at - 20ºC52.1 J

5.3 kgf-m

at 0ºC83.4 J

8.5 kgf-m

Size( mm )

CurrentRange( Amp. )

Dia.

Length

Flat, HorizontalFillet Position

3.2

350

4.0

450

5.0

450

130 ~ 170

2682070243Order No.

150 ~ 230

2682070244

200 ~ 310

2682070245

Classification : AWS A5.1 E7024

HV - 950For Heavy Soil Abrasion

Description

HV-950 is a complex carbide electrode. The weld metal deposit gives extremely high hardness oftypically HRC 60. It is excellent in wear application at elevated temperatures and its suitable for protecting all iron based parts subject to severe fine particle abrasion.

Applications

For surfacing of sand pump casing, pump impeller, worn parts on farm equipment, forestry tools, conveyorscrew, mixer blades, scraper bars,blast furnaces, cement furnacesand buckets teeth.


1. Dry the electrodes at 150º~200ºC for 30~60 minutes before use.2. Choose the welding current within the suitable welding current range.3. Preheat at 300ºC is required and post heating after welding is desirable at about 600ºC4. Build-up in lattice shape or string in general.

C

4.60

Si

2.23

S

0.019

P

0.017

Mn

0.40

Ni

24.5

Cr

18.0

WELDING CONDITION

As Welded Preheating- interpass 150ºC


Vickers (HV)

660~900

600~700

Size( mm )

Dia.

Length

3.2

350

140 ~ 170

2682099503

Current Range (Amp.)

Order No.

4.0

400

180 ~ 220

2682099504

5.0

400

220 ~ 270

2682099505

Rockwell (HRC)

58~64

55~60

Hardness Of Weld Metal

Typical Chemical Composition Of Weld Metal (%)

Typical Mechanical Properties Of Weld Metal

Recommended Currents: ( AC or DCEP)



2.10

DISTRIBUTED BY:

RD - 360For Welding of 50 kgf/mm² Class High Tensile Steel

DescriptionRD-360 is a low hydrogen type electrode used for welding of50kgf/mm² high tensile steel in allpositions. It has excellent workability such as good arc stability,smooth bead appearance andexcellent slag removal. Itsmechanical properties, X-rayqualities and notch toughness arevery good and it shows excellentproperties in all positions.

Applications

Building constructions, pipes,agricultural machinery, tank, etc.


For vertical down welding usecontact welding method.

C

0.07

Si

0.54

Mn

1.10

P

0.021

S

0.008



Yield Point

495 N/mm²50.5 kgf/mm²

Tensile Strength

557 N/mm²56.8 kgf/mm²

Elongation

28%

Charpy Impact Value

at - 29ºC89 J

9.1 kgf-m

Recommended Currents : ( AC or DCEP OR DCEN )

Size( mm )


Dia.

Length

Flat Position

Vertical, Over-head Position

2.6

350

3.2

350

4.0

400

80 ~ 120

70 ~ 110

2682070162Order No.

90 ~ 150

90 ~ 150

2682070163

150 ~ 190

130 ~ 170

2682070164

Classification : AWS A5.1 E7016 JIS Z 3212 D5016

RD - 718For Welding of 50 kgf/mm2 Class High Tensile Steel

DescriptionRD-718 is an iron powder low hydrogen type electrode which has been designed for the use on heavyduty structures in all position. Itshydrogen content of weld metal isvery low and it has excellentmechanical properties. It’sdeposited rate and weldingeffeciency is high.

ApplicationsWelding of various heavy duty structures, thick plate structuresusing 50kgf/mm² class high tensilesteel.

Instructions for Welding1. Dry the electrodes at 300º~ 400ºC for 30 ~ 60 minutes before use.2. Adopt back step method or strike the arc on a start tab to prevent blowholes at the arc starting. 3. Keep the arc length as short as possible.

C

0.08

Si

0.53

Mn

1.10

P

0.017

S

0.013

Yield Point

486 N/mm²49.6 kgf/mm²

Tensile Strength

583 N/mm²59.4 kgf/mm²

Elongation

28.5%

Charpy Impact Value

at - 29ºC98 J

10.0 kgf-m

Classification : AWS A5.1 E7018 JIS Z 3212 D5016

Size( mm )


Dia.

Length

Flat Position


2.6

350

3.2

350

4.0

400

5.0

400

80 ~ 120

70 ~ 110

2682070182Order No.

90 ~ 150

80 ~ 130

2682070183

150 ~ 200

130 ~ 170

2682070184

180 ~ 250

150 ~ 220

2682070185



Recommended Currents : ( AC or DCEP OR DCEN )

2.11


DISTRIBUTED BY:

NSB - 308LFor Welding of Low Carbon 18% Cr - 8% Ni Stainless Steel

Description

NSB-308L is a stainless steel electrode with excellent weldability, which gives a low carbon 19% Cr -9% Ni austenitic stainless steelweld metal. Because of the lowcarbon content, the deposited metal has better resistance to intercrystalline corrosion than that of originary 308 type. Therefore, these electrodes are recommended,where the construction should be worked at severe corrosive atmosphere.

Applications

Mainly used for welding of AISI 304L stainless steel.


1. Dry the electrodes at 150ºC ~ 200º for 30 ~ 60 minutes before use.2. Keep the arc length as short as posibble.3. Do not use excessive current.4. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.5. Clean weld area in order to prevent from decreasing the corrosion caused by interblending carbon to the deposited Metal.

C

0.032

Si

0.55

Mn

1.87

P

0.026

S

0.011

Tensile Strength

550 N/mm² 56.1kgf/mm²

Elongation

51.0%

Size( mm )


Dia.

Length

Flat Position


2.6

300

3.2

350

4.0

350

Order No.

50 ~ 80

45 ~ 75

2682030812

70 ~ 110

65 ~ 105

2682030813

100 ~ 150

95 ~ 140

2682030814

Classification : AWS A5.4 E308L-16 JIS Z 3221 D308L-16

Ni

10.1

Cr

18.91

Typical Corrosion Resistance Of Weld Metal

Sulphuric acid, copper sulfate grain boundarycorrosion bending test

180º bendingwithout any defects

NSK - 308LFor 18% Cr - 8% Ni Stainless Steel

Description

NSK-308L is rutile type, extra low carbon stainless steel electrode forwelding of low 18%Cr-8% Ni austenitic stainless steel and also suitable for welding stainless steelof similar composition. It is easyslag removal, excellent beadappearance, excellent to strikeand good heat resistance.

Applications

Mainly used for welding AISI 304L stainless steel.


1. Dry the electrode at 250º~ 300ºC for 30 ~ 60 minutes before use.2. Choose the welding current within the suitable welding current range.3. Keep the arc length as short as possible.4. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.


C

0.02

S

0.018

P

0.028

Mn

0.60

Ni

9.91

Cr

19.80

Tensile Strength

645 N/mm²

65.8 kgf/mm²

Elongation

45.2%

Size( mm )

Dia.

Length

2.0

300

40 ~ 85

2682030821

Charpy Impact Value

at - 60ºC112 J

11.4 kgf.m


Order No.

2.6

300

70 ~ 105

2682030822

3.2

350

85 ~ 130

2682030823

4.0

350

120 ~ 170

2682030824







Si

0.72

2.12


DISTRIBUTED BY:

NSK - 308For 18% Cr - 8% Ni Stainless Steel

DescriptionNSK-308 is rutile type, stainless steel electrode for welding of18%Cr - 8% Ni austenitic stainlesssteel and also suitable for weldingstainless steel of similarcomposition. It has excellentweldability, such as: easy slagremoval, excellent bead appearance, excellent to strike and good heat resistance.

Applications

The main application is for welding austenitic stainless steel with the same analysis as the weld metal(AISI 304 stainless steel) and can also be used for the welding of AISI type 301,302 and 305 stainlesssteel.


1. Dry the electrodes at 250º~300ºC for 30~60 minutes before use.2. Choose the welding current within the suitable welding current range.3. Keep the arc length as short as possible.4. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.

Classification : AWS A5.4 E308-17 JIS Z 3221 D308-16

C

0.05

Si

0.73

S

0.018

P

0.028

Mn

0.58

Ni

9.9

Cr

19.79

Tensile Strength

650 N/mm²

66.3 kgf/mm²

Elongation

45.0%

Size( mm )

Dia.

Length

2.0

300

40 ~ 85

2682030831


Order No.

2.6

300

70 ~ 105

2682030832

3.2

350

85 ~ 130

2682030833

4.0

350

120 ~ 170

2682030834

NSB - 310For Welding of Low Carbon 25% Cr - 20% Ni Stainless Steel

Description

NSB-310 is a stainless steel electrode which gives the depositedmetal of 25%Cr-20%Ni stainlesssteel with the fully austenitic structure. The deposited metal hasexcellent corrosion resistibility and heat resistibility and shows distinguished ductility because theNi alloy contents are higher thanthat of 309 type. It is suitable forwelding the steel of highhardenability such as 13% Cr steel,Cr - Mo steel etc., which is difficultto preheating or postheating.

Applications

Welding of steel corresponding toAISI 310 and 310S. Welding on the clad side of stainless clad steel. Welding of dissimilar steels such as mild steel to airhardening steel (Cr- Mo steel etc.)


1. Dry the electrodes at 150ºC ~ 200º for 30 ~ 60 minutes before use.2. Keep the arc length as short as possible.3. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.4. The weld metal is sensitive to hot cracking because high Cr and Ni alloy contents will give the fully austenitic structure. Therefore, select the lower welding current stated in the table below.5. Keep interpass temperature less 150ºC and do not weld continously.


C

0.11

Si

0.53

Mn

2.21

P

0.022

S

0.005

Ni

21.39

Cr

26.94

Tensile Strength

582 N/mm² 59.3 kgf/mm²

Elongation

38.3%

Size( mm )


Dia.

Length

Flat Position


2.6

300

3.2

350

4.0

350

Order No.

50 ~ 80

45 ~ 75

2682031002

70 ~ 110

65 ~ 105

2682031003

100 ~ 150

95 ~ 140

2682031004







2.13


DISTRIBUTED BY:

NSB - 312For Joining of Disimmilar & Problem Steel

Description

NSB-312 is a rutile type electrode, which is very versatile for welding ofdissimilar and problem steel. With weld metal composition of 29% Cr9% Ni and containing a large percentage of fertite, it has very high tensile strength and excellent crack resistance.

Applications

Welding of dissimilar metals such as stainless steel to mild steel or lowalloy steel. Welding of stainless cladsteel. Underlaying build up of hardsurfacing.

Instructions for Welding1. Keep the arc length as short as possible.2. Do not use excessive current (use recommended current). 3. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.4. Dry the electrode at 150ºC ~ 200ºC for 30 ~ 60 minutes before use.

C

0.09

Si

0.86

Mn

0.80

P

0.019

S

0.016

Size( mm )


Dia.

Length

Flat Position


2.6

300

3.2

350

Order No.

70 ~ 110

60 ~ 100

2682031202

90 ~ 140

80 ~ 120

2682031203

Ni

8.6

Cr

29.2

Tensile Strength763 N/mm²

77.8 kgf/mm²

Elongation

26.7%

NSB - 316 LFor Welding of Low Carbon 18% Cr - 12% Ni - 2.5% Mo Stainless

Description

NSB-316L is a stainless steel electrode which gives a low carbon19% Cr - 12% Ni- 2% Moaustenitic stainless steel depositedmetal. As the carbon content islower than that of 316 type, thedeposited metal prevents itself fromintercrystalline corrosion caused byseparation of chromium carbide andalso has an excellent creep strength.

Applications

Mainly used for welding of AISI 316Lstainless steel.


1. Dry the electrodes at 150º~200ºC

for 30~60 minutes before use.2. Keep the arc length as short as possible.3. Do not use excessive current.4. Do not use too much weaving. The bead width should be kept within 2.5 times of core wire diameter.5. Clean weld area in order to prevent from decreasing the corrosion resistibility by interblending carbon to the deposited metal.


C

0.03

Si

0.37

Mn

1.85

P

0.021

S

0.004

Ni

12.29

Cr

18.96

Mo

2.27

Tensile Strength

549 N/mm² 56.0 kgf/mm²

Elongation

45%

Sulphuric acid, copper sulphate grain boundarycorrosion bending test

180º bendingwithout any defects

Size( mm )


Dia.

Length

Flat Position


2.6

300

3.2

350

4.0

350

Order No.

50 ~ 80

45 ~ 75

2682031612

70 ~ 110

65 ~ 105

2682031613

100 ~ 150

95 ~ 140

2682031614

Typical Corrosion Resistance Of Weld Metal








2.14


DISTRIBUTED BY:

GA - 24For Mild Steel and Medium Tensile Steel

Description

GA-24 is an iron powder titanium

type electrode designed for highspeed and high efficiency weldingin flat and horizontal fillet positions.It has excellent weldability, easyslag removal and producesbeautiful bead appearance.The metal recovery with respect to core wire is 180%.

Applications

For flat and horizontal fillet weldingof ship building, storage tanks, building construction. Finish welding of multi layer welding.


1. If the electrodes become damp, dry the electrodes at 80ºC ~ 120ºC for 30 ~ 60 minutes before use.2. For horizontal fillet position, use contact welding method.

C

0.06

Si

0.29

Mn

0.90

P

0.016

S

0.011

Yield Point

464 N/mm²47.0 kgf/mm²

Tensile Strength

543 N/mm²55.4 kgf/mm²

Elongation

26.6%

Charpy Impact Value

at - 20ºC52.1 J

5.3 kgf-m

at 0ºC83.4 J

8.5 kgf-m

Size( mm )


Dia.

Length

Flat, HorizontalFillet Position

3.2

350

4.0

450

5.0

450

130 ~ 170

2682070243Order No.

150 ~ 230

2682070244

200 ~ 310

2682070245

Classification : AWS A5.1 E7024

HV - 950For Heavy Soil Abrasion

Description

HV-950 is a complex carbide electrode. The weld metal deposit gives extremely high hardness oftypically HRC 60. It is excellent in wear application at elevated temperatures and its suitable for protecting all iron based parts subject to severe fine particle abrasion.

Applications

For surfacing of sand pump casing, pump impeller, worn parts on farm equipment, forestry tools, conveyorscrew, mixer blades, scraper bars,blast furnaces, cement furnacesand buckets teeth.


1. Dry the electrodes at 150º~200ºC for 30~60 minutes before use.2. Choose the welding current within the suitable welding current range.3. Preheat at 300ºC is required and postheating after welding is desirable at about 600ºC4. Build-up in lattice shape or string in general.

C

4.60

Si

2.23

S

0.019

P

0.017

Mn

0.40

Ni

24.5

Cr

18.0

WELDING CONDITION



Vickers (HV)

660~900

600~700

Size( mm )

Dia.

Length

3.2

350

140 ~ 170

2682099503


Order No.

4.0

400

180 ~ 220

2682099504

5.0

400

220 ~ 270

2682099505

Rockwell (HRC)

58~64

55~60







2.15


DISTRIBUTED BY:

C

4.00

Si

0.76

S

0.010

P

0.022

Mn

1.20

Cr

32.6

Other Elements

1.0~2.0


WELDING CONDITION



Vickers (HV)

610~740

580~720

Size( mm )

Dia.

Length

3.2

350

120 ~ 160

2682000232


Order No.

4.0

400

160 ~ 220

2682000240

5.0

400

190 ~ 260

2682000250

Rockwell (HRC)

56~62

54~60

C

1.27

Si

0.49

Mn

0.13

P

0.004

S

0.002

Fe

1.23

Ni

Balance


39.3 kgf/mm²

Elongation

5.9%

Size( mm )

Dia.

Length

2.6

300

3.2

350

4.0

350

50 ~ 80

2682010026Order No.

70 ~ 110

2682010032

Current Range ( Amp. ) 100 ~ 140

2682010040

Classification : AWS A5.15 ENi-CI JIS Z 3252 DFCNi






2.16

CIN - 1For Repairing of Cast Iron

DescriptionCIN-1 is a high grade special purpose electrode with pure nickel core. This electrode is especially intended for cold welding of cast iron. Due to the special character of the coatings, welding can be completed by lower current as compared with the conventional electrodes. The weld metal is the most insensitive to cracking and has good mechanical properties.

Applications

For repairing of cracks, filling of

defects and joining of all kinds of cast iron. Also suitable for welding water tight constructions.

NS SUGARFor Sugar Industries

Description

NS Sugar has been specially designed for the sugar industries, the deposited metal contains C andCr as principal elements. It has extremely high hardness caused byprecipitation of chrome carbide. NSSugar welding characteristic covers good arc stability and high deposition level.

Applications

For surfacing of sugar mill feed roll, shredding knives and hammer bit. NS Sugar can be applied to repair the worn rolls during either running or stationary condition.

Instructions for Welding1. As a rule, no preheating or post heating is necessary, but the best result is obtained when base metal is heated to 100ºC ~ 200ºC

before welding.2. Dry the electrodes at 80º ~ 120ºC for 30 ~ 60 minutes before use.


1. Dry the electrodes at 150º~200ºC for 30~60 minutes before use.2. Choose the welding current within the suitable welding current range.3. Underlay with austenitic stainless electrodes (NS-307/NSB-307) to avoid cracking in the case of multi layer welding of 13%


DISTRIBUTED BY:

CIN - 3For Repairing of Cast Iron

Description

CIN-3 is a graphite type electrode using mild steel core wire . Its weldmetal shows high carbon content.Then it gives high hardness, so it issuitable for welding the parts wheremachining is unnecessary. Itsfusibility with cast iron is excellent.

Applications

For repairing of cast iron parts

here machining is unnecessary.

Instructions for WeldingThe preheat temperature vary in accordance with the kind, shape and size of base metal. Preheating over 200ºC is appropriate toprevent cracking. Slow cooling is recommended after welding.

Size( mm )

Dia.

Length

2.6

300

3.2

350

4.0

350

60 ~ 100

2682020026Order No.

90 ~ 120

2682020032


2682020040

C

2.2

Si

0.23

Mn

0.45

P

0.021

S

0.006

CIN - 2For Reparing of Cast Iron

Description

CIN-2 is a high grade special pur-pose electrode with ferro-nickel alloy core (45%Fe-55%Ni). Thiselectrode is especially intended forcold welding of cast iron. Due tothe special character of thecoatings, welding can be completed by lower current compared with the conventional electrodes. So, the weld metal can be matched by cutting tools and isnot sensitive to cracking. As theweld metal has excellent mechanical properties, it is mostsuitable for cold welding of ductilecast iron (nodular cast iron).

Applications

For welding of nodular cast iron, repairing and jointing all kinds ofcast iron, repairing and joining all kinds of cast iron. Also suitable for underlaying of hardsurfacing.


1. As a rule, no preheating of postheating is necessary, but the best result is obtained when the parent metal is heated top 100ºC ~ 200ºC before welding.2. Dry the electrodes at 80ºC ~ 120ºC for 30 ~ 60 minutes before use.

C

1.46

Si

0.51

Mn

0.35

P

0.006

S

0.003

Fe

Balance

Ni

52.54


50.5 kgf/mm²

Elongation

17.0%

Size( mm )

Dia.

Length

2.6

300

3.2

350

4.0

350

50 ~ 80

2682015026Order No.

70 ~ 110

2682015032


2682015040

Classification : AWS A5.15 ENiFe-CI JIS Z 320 DFCNiFe






2.17


DISTRIBUTED BY:

NSG

For Gouging of all Metals

Description

NSG is a gouging electrode, de-signed to produce a beautiful andclean gouged surface for all metals.It contains no graphite, there is nothing to worry about graphite residues on the gouged surface.The coating has good heatresistance, the electrodes can beused with high welding current toproduce high speed and efficientgouge.

Applications

For gouging of unwanted section of cast iron, stainless steel, hard surfacing, non-ferrous metals which are difficult to be ground with abrasive stone. Preparing joints to be welded, back chipping, removal of defects, etc.


1. Strike the arc by angle less than 30º from base metal and then proceed forward by pressing firmly on the metal. 2. If the deep groove is necessary, it is better to repeat gouging operation several times with shallow groove.3. Do not preheat the gouging rod with excessive temperature(max. 50ºC for 30 minutes), this is to maintain the moisture level in the coating in order to get deep penetration characteristic.

TYPICAL GOUGING CAPACITY

BASE PLATEMild Steel Plate (SS41)Plate thickness 16mm

Welding PositionDiameter x Length (mm)Welding Current (A)

Flat3.2 x 350

18041051

4707.0 x 2.5

11.524.0

Vertical3.2 x 350

18033048

4107.0 x 3.5

9.322.5

Horizontal3.2 x 350

18051052.5590

6.8 x 3.014.324.5

Gouging Length Per Rod (mm)Gouging Time (sec)Gouging Speed (mm/min.)Gouging Width x Depth (mm)Gouging Length (m)Gouging Time (min.)

PerRod

Per Kg

RECOMMENDED CURRENTS : ( AC or DCEN )

Size(mm)

Dia.Length

3.2350

160 ~ 2002682000232

4.0400

230 ~ 2702682000240


Order No.

2.18


Date post:	19-Mar-2018
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NIKKO ARC WELDING ELECTRODES - yewcheong.com.sg 2 - nikko welding consumable… · NIKKO ARC...

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