9. PLAN DE RECURSOS HUMANOS
10.1 Supuestos y Políticas Financieras
3.01
WELDING HANDBOOK NOTES
3.01
150
GPO-302 N
Imprint Unitor GPO-30 N/ 6013
SfA/AWS A 5 .1 EN-ISO 2560-A
E 6013 E 38 O RC 11
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
510 400 9 At 0°C = 70
General Purpose Electrode for Mild Steel
Classifications
All weld metal composition
Typical mech . properties of weld metal
Packaging data
General structural steel DIN 17100 St33, St37- to St44-3
NF A35-501 A33, A34-, E4- (–4), E8- (–3) E30- (–3)
BS 4360 Gr. 40A-C, 43A-C
Ship plates Grade A, B, C, D
Cast steel DIN 1681 GS38
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7
API 5 Lx x4, x46
DIN 166-1630 St37.0/4, St44.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4 vessel steel NF A 36-05 A37 (CP), A4 (CP), A48 (CP)
NF A36-07 A510AP, A530AP, A550AP BS 1501 151/154/161-Gr. 360/400, 164-Gr.360 Elevated temperature steel DIN 17175 St35.8, St45.8
Fine grained steel DIN 1710 StE55 to StE315
NF A36-03 E75D
Re-drying temperature: Normally no need.
AC
DC+/-PA PB PC PF PG PE, PD
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
.5 60–100 50 0.8 86 1
3. 80–150 57 1.3 53
4.0 100–00 65 1.6 39
* MSDS available on request.
** 90% of max. amperage Welding data
3.01
GPO-302 N
Unitor GPO-30 N is a general pur-pose electrode with a medium thick organic rutile coating which produces a fast-freezing slag.
It is a versatile electrode for all mild steel constructions on board, except the higher grade steels that require basic coated electrodes (hull plates, beams, etc.)
GPO-30 N strikes and restrikes easily and is the electrode least affected by rust and paint residues on the work-piece.
The excellent restriking properties makes the electrode well suited for tack welding.
GPO-30 N may be used in all posi-tions including vertical down, if nec-essary without changing the welding current setting.
This, and the electrode’s ability to easily bridge large gaps makes it an excellent general purpose repair elec-trode on board.
Application areas range from tack welding of plate and tube construc-tions to complete welding jobs of medium strength.
With its good welding characteristics GPO-30 N ,5 mm is, together with SPECIAL-303 N .0 mm, a good solu-tion for thin sheetplate welding.
GPO-302 N bridges wide gap.
Suitable for tack welding and welding on clamp fitments.
Suitable for welding in the vertical-down position.
3.01
GPR-300 H
15
High Recovery Electrode for Mild Steel
Identification:
General structural steel DIN 17100 St33, St37- to St5-3 NF A35-501 A33, A34-, E4- (–4) to E36- (–4)
BS 4360 Grade 43D, 50D
Ship plates Grade A, B, C, D, E, AH, DH, EH
Cast steel DIN 1681 GS38, GS45, GS5
BS3100 A1, A, A3, AM1, AM, AW1
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7 API 5 Lx x4, x46, x5, x60
DIN 166-1630 St37.0/4, St44.0/4, ST5.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4, 19Mn5
vessel steel NF A36-05 A37 (CP, AP), A4 (CP, AP), A48 (CP, AP), A5 (CP, AP) NF A36-07 A510 AP, A530 AP, A550 AP
BS 1501 151/154/161-Gr. 360/400/430, 164-Gr. 360/400 Elevated temperature steel DIN 17175 St.35.8, St.45.8
Fine grained steel DIN 1710 St.E55 to St.E40
NF A 36-03 E75 D, E344D, E390D, E430D, E455D
AC
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
3. 450 85 5.8 095-69931 3
4.0 450 51 5.5 095-69949 3
5.0 450 35 5.6 095-69956 3
6.0 450 3 5.3 095-69960 3
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
3. 130–170 69 .5 1.0
4.0 180–30 69 3.8 13.5
5.0 50–340 68 5.8 9.1 3
6.0 300–430 7 7.5 6.6 4
* MSDS available on request. ** 90% of max. amperage
DNV GL LR BV ABS
Y , Y
All weld metal composition C Mn Si
max. 0.1 0.45 - 0.95 0.5 - 0.65
Typical mech . properties
of weld metal Tensile strength yield strength Elongation Impact value Recovery
MPa MPa % ISO-V (J) %
555 480 6 At -0°C = 50 180
Re-drying temperature: Normally no need.
3.01
GPR-300 H
Unitor GPR-300 H is a high recovery electrode of rutile type for welding in the flat and horizontal-vertical position. It is specially suitable for horizontal-vertical and horizontal fillet welding.
GPR-300 H has a recovery value of approx. 180%, the coating containing approx. 60% iron powder.
During welding, the electrode should be pulled along the groove allowing the coating to be in contact with the base material. Preferably use DC-polarity.
The electrode can be used at a weld-ing speed of up to 50 cm/min. when A-measurement (throath thickness) is 3.5 to 6 mm. When horizontal/vertical fillet welding on heavier material, a large electrode diameter e.g. 5 mm.
in relation to A-measurement can be used.
The electrode is suitable for welding materials which have zinc and iron oxide rust protective primer coatings.
However, observe all necessary safe-ty precautions concerning the fumes from the primer. Consult the chapter on welding fumes.
GPR-300 H is a typical electrode where large sections of steel are to be replaced but it is also useful for general repair work. The high welding speed, good welding properties, and high deposition rate reduce the risk of heat deformation and stress.
Welding with this electrode ensures low spatter. The bead has a smooth surface and the slag is self-releasing.
This electrode is recommended for welding flanges to tubes in the hori-zontal position.
The A measurement should be 7/10 of material thickness.
3.01
SPECIAL-303 N
154
Double Coated Electrode for Mild and Ship quality Steel
Identification:
General structural steel DIN 17100 St33, St37- to St5-3 NF A35-501 A33, A34-, E4- (–4) to E36- (–4)
BS 4360 Grade 43D, 50D
Ship plates Grade A, B, C, D, E, AH, DH, EH
Cast steel DIN 1681 GS38, GS45, GS5
BS3100 A1, A, A3, AM1, AM, AW1
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7 API 5 Lx x4, x46, x5, x60
DIN 166-1630 St37.0/4, St44.0/4, ST5.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4, 19Mn5
vessel steel NF A36-05 A37 (CP, AP), A4 (CP, AP), A48 (CP, AP), A5 (CP, AP) NF A36-07 A510 AP, A530 AP, A550 AP
BS 1501 151/154/161-Gr. 360/400/430, 164-Gr. 360/400 Elevated temperature steel DIN 17175 St.35.8, St.45.8
Fine grained steel DIN 1710 St.E55 to St.E40
NF A 36-03 E75 D, E344D, E390D, E430D, E455D Classifications
All weld metal composition
Typical mech . properties of weld metal
Packaging data
Imprint Unitor SPECIAL-303 N / 7016
SfA/AWS A 5 .1 EN-ISO 2560-A
E 7016 E 38 B 3 H10
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
530 40 8 At –0°C = 10
AC DC+
PA PB PC PF PE, PD
Welding data Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
Re-drying temperature: 300 °C (57 °F) for two hours.
Electrode
LMA
3.01
Excellent in difficult position welding Unitor SPECIAL-303 N is a double coated basic electrode with special coating components combining the excellent running characteristics of a rutile electrode with the very good mechanical properties of a basic electrode.
Unitor SPECIAL-303 N welds on AC as on DC+ with minimal spatter level.
Very good positional welding prop-erties, vertical welding should be conducted in the upward direction.
Ideal electrode for high quality jobs performed by non-welders.
The mm size is ideal for use on sheet metal plates and thin walled pipes.
SPECIAL-303 N
Core rod
Basic coating
Rutile coating
Welding mild and ship quality steel Sheet metal plates
Root edge
Controlled burn through Molten pool
Roots runs on plate and pipes.
3.01
156
LH-314 N
Low Hydrogen Electrode for Ship quality Steel
Identification:
General structural steel DIN 17100 St33, St37- to St5-3 NF A35-501 A33, A34-, E4- (–4) to E36- (–4)
BS 4360 Grade 43D, 50D
Ship plates Grade A, B, C, D, E, AH, DH, EH
Cast steel DIN 1681 GS38, GS45, GS5
BS3100 A1, A, A3, AM1, AM, AW1
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7 API 5 Lx x4, x46, x5, x60
DIN 166-1630 St37.0/4, St44.0/4, ST5.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4, 19Mn5
vessel steel NF A36-05 A37 (CP, AP), A4 (CP, AP), A48 (CP, AP), A5 (CP, AP) NF A36-07 A510 AP, A530 AP, A550 AP
BS 1501 151/154/161-Gr. 360/400/430, 164-Gr. 360/400 Elevated temperature steel DIN 17175 St.35.8, St.45.8
Fine grained steel DIN 1710 St.E55 to St.E40
NF A 36-03 E75 D, E344D, E390D, E430D, E455D Classifications
All weld metal composition
Typical mech . properties of weld metal
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
.5 350 161 4.0 095-69964 3
3. 450 95 5.0 095-6997 3
4 450 78 5.6 095-69980 3
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
540 445 9 At –0°C = 140
At –40°C = 70
DC+/-PA PB PC PF PE, PD
Re-drying temperature: 350 °C (66 °F) for two hours.
Electrode
LMA
3.01
LH-314 N
A short arc.
Welding cast steel.
Unitor LH-314 N is a heavily coated electrode of basic type for welding unalloyed, low alloyed and yield point controlled steel in all positions. Yield point controlled steel refers in this case to ships’ steel normally used for deckplates, hull plates and frames.
If you are uncertain as to wether the steel is unalloyed or low alloyed, you cannot go wrong when using a basic electrode. The electrode will operate with DC positive or negative polarity.
Vertical welding should be carried out upwards. For vertical-down welding electrode LHV-316 N is recommended.
All basic electrodes should be used with a short arc. LH-314 N has a recovery value of approx. 10%, the coating containing approx. 0% iron powder.
Hydrogen content is low, less than 5 ml/100g weldmetal, thus reducing the risk of cold cracks. Slag is easily removed. Basic electrodes produce a higher quality deposit than rutile and acid types. The electrode must be protected against humidity and welding with damp electrodes should not be attempted. See the section on after-drying of basic electrodes.
Unitor LH-314 N produces a weld of good mechanical properties and is therefore well suited for heavily load-ed components such as lifting lugs, motor base plates and similar heavily stressed parts. Well suited for x-ray examination.
Unitor LH-314 N is commonly used for welding ordinary cast steel in high pressure valves and other machine parts. It should not be used for cast iron.
To determine whether you have cast iron or cast steel, use a hammer and chisel on the material and consult the chisel test under the section on metal identification.
Joining deck and hull plates.
Lifting lugs.
Motor base plates.
3.01
158
LHH-314 H
Imprint Unitor LHH-314 H/ 708
SfA/AWS A 5 .1 EN-ISO 2560-A
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
4.0 450 54 5.5 095-69998 3
5.0 450 36 5.5 095-699306 3
Re-drying temperature: 350 °C (66 °F) for two hours.
C Mn Si
0.07 - 0.10 0.85 - 1.5 0.5 - 0.65
High Recovery Low Hydrogen Electrode for Ship quality
Identification:
General structural steel DIN 17100 St33, St37- to St5-3 NF A35-501 A33, A34-, E4- (–4) to E36- (–4)
BS 4360 Grade 43D, 50D
Ship plates Grade A, B, C, D, E, AH, DH, EH
Cast steel DIN 1681 GS38, GS45, GS5
BS3100 A1, A, A3, AM1, AM, AW1
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7 API 5 Lx x4, x46, x5, x60
DIN 166-1630 St37.0/4, St44.0/4, ST5.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4, 19Mn5
vessel steel NF A36-05 A37 (CP, AP), A4 (CP, AP), A48 (CP, AP), A5 (CP, AP) NF A36-07 A510 AP, A530 AP, A550 AP
BS 1501 151/154/161-Gr. 360/400/430, 164-Gr. 360/400 Elevated temperature steel DIN 17175 St.35.8, St.45.8
Fine grained steel DIN 1710 St.E55 to St.E40
NF A 36-03 E75 D, E344D, E390D, E430D, E455D Classifications
All weld metal composition
Typical mech . properties of weld metal
Packaging data
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
4.0 170–40 70 3.7 14.4 4
5.0 5–355 7 5.7 9.6 4
* MSDS available on request. ** 90% of max. amperage Welding data
Tensile strength yield strength Elongation Impact value Recovery
MPa MPa % ISO-V (J) %
540 430 6 At -0°C = 110 165
At -40 °C = 65
Electrode
LMA
3.01
LHH-314 H
The A measurement should be 7/10 of material thickness.
Unitor LHH-314 H is a high recovery electrode of zirconium-basic type for welding in the flat and horizontal-ver-tical position. It is specially suitable for horizontal-vertical and horizontal fillet welding.
LHH-314 H has a recovery value of approx. 165%, the coating containing approx. 65% iron powder.
During welding, the electrode should be pulled along the groove allowing the coating to be in contact with the base material.
The electrode can be used at a weld-ing speed of up to 50 cm/min. when A-measurement (throath thickness) is 3.5 to 6 mm. When vertical fillet weld-ing on heavier material, a large elec-trode diameter e.g. 5.0 mm. in relation to A-measurement can be used.
The electrode is suitable for welding materials which have zinc and iron oxide rust protective primer coatings.
However, observe all necessary safe-ty precautions concerning the fumes from the primer. Consult the chapter on welding fumes.
LHH-314 H is a typical electrode where large sections of steel are to be replaced but it is also useful for general repair work. The high welding speed, good welding properties, and high deposition rate reduce the risk of heat deformation and stress.
This electrode is recommended for welding flanges to tubes in the hori-zontal position.
3.01
160
LHV-316 N
Vertical Down Welding Low Hydrogen Electrode for Ship quality Steel
General structural steel DIN 17100 St33, St37- to St5-3 NF A35-501 A33, A34-, E4- (–4) to E36- (–4)
BS 4360 Grade 43D, 50D
Ship plates Grade A, B, C, D, E, AH, DH, EH
Cast steel DIN 1681 GS38, GS45, GS5
BS3100 A1, A, A3, AM1, AM, AW1
Pipe material DIN 1717 StE10.7, StE40.7, StE90.7, StE30.7, StE360.7 API 5 Lx x4, x46, x5, x60
DIN 166-1630 St37.0/4, St44.0/4, ST5.0/4 Boiler & pressure DIN 17155 HI, HII, 17Mn4, 19Mn5
vessel steel NF A36-05 A37 (CP, AP), A4 (CP, AP), A48 (CP, AP), A5 (CP, AP) NF A36-07 A510 AP, A530 AP, A550 AP
BS 1501 151/154/161-Gr. 360/400/430, 164-Gr. 360/400 Elevated temperature steel DIN 17175 St.35.8, St.45.8
Fine grained steel DIN 1710 St.E55 to St.E40
NF A 36-03 E75 D, E355D, E390D, E430D, E455D Classifications
All weld metal composition
Typical mech . properties of weld metal
Packaging data Welding data
Imprint Unitor LHV-316 N / 8018-G
SfA/AWS A 5 .5 EN-ISO 2560-A
E 8018-G E 46 4 B 41 H5
DNV GL LR BV ABS
3YH10 4YH10 4Y40H10 3YHH 3Y
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
3. 350 137 4.8 095-699314 3
4.0 350 99 5.0 095-6993 3
Re-drying temperature: 350 °C (66 °F) for two hours.
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
3. 110–150 53 1.6 43.7
4.0 180–0 50 .8 7.0
* MSDS available on request.
** 90% of max. amperage
C Mn Si
0.06 - 0.09 1.00 - 1.40 0.3 - 0.7
Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
3.01
LHV-316 N
A short arc
When a large weld cross-section is required, weld a bead on either side of the
root bead as shown Unitor LHV-316 N is a heavily coated
basic electrode for welding unalloyed, low alloy and some types of yield point controlled steel. It can be used in all positions. Its range of applica-tion covers hull plates, deckplates, and stressed or loaded parts such as frames, lifting lugs and electric motor baseplates.
LHV-316 N is specially developed for welding in the vertical-down position.
When welding in this position the electrode should travel in a straight line and be kept in light contact with both sides of the groove. The elec-trode should be held at an angle of 40–85°C to the direction of welding.
The electrode can also be used for welding in the flat position and for overhead welding.
Unitor LHV-316 N produces a deposit with very good mechanical strength and high crack resistance. The slag from this electrode is very easily removed, even from narrow grooves.
LHV-316 N will weld any normal joint, e.g. V-grooves and fillets. It is often used for welding a root bead where LH-314 N is used for the subsequent build-up. This is an economical elec-trode, maximum welding current can be used also in vertical welding. This makes it possible to weld up to three times faster than normal.
There is little heat transfer to the base material when welding with LHV-316N and deformation and stress is there-fore kept to a minimum.
The electrode must be protected against humidity and no attempt should be made to weld with damp electrodes. See the section on after-drying of basic electrodes.
Joining deck and hull plates
Electrode
LMA
3.01
16
LHT-318 N
Electrode for High Temperature Steel
Identification:
Elevated temperature steel DIN 17155 13CrMo44
DIN 1700 5CrMo4
NF A36-06 15CD.05, 15C, D4.05
Case hardening steel DIN 1710 16MnCr5
NF A35-551 18CD4, 16MC5, 0MC5
Q & T steel NF A35-55 5CD4, 30CD4
All weld metal composition
Typical mech . properties * of weld metal
Packaging data Welding data
Imprint Unitor LHT-318 N / 8018-B
SfA/AWS A 5 .5 EN 1599
E 8018-B E CrMo 1B 4 H5
DNV GL LR BV ABS
H 10 – – C1M SR
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
.5 350 75 1.7 095-699330 6
3. 350 48 1.7 095-699348 6
Re-drying temperature: 350 °C (66 °F) for two hours.
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
.5 70–105 60 0.8 73 3
3. 95–150 65 1.1 49 3
* MSDS available on request.
** 90% of max. amperage
C Mn Si P S Cr Mo
0.05 - 0.10 0.30 - 0.80 0.0 - 0.50 max. 0.015 max. 0.00 1.5 - 1.45 0.50 - 0.65 Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
60 530 0 At -0°C = 38
* Stress relived temp.: 700 °C, 1 hour
Creep resistance RP/1.0%/10.000 MPa 50 170
3.01
LHT-318 N
Electrode for heat resistant steels, e.g.
boiler plate and boiler tubes
V-groove for plates up to 12 mm thickness:
Unitor LHT-318 N is a heavily coated basic electrode for welding low alloy steel and cast steel with up to approx.
1% Chromium and 0.5% Molybdenum, used for working temperatures up to 550°C. Such type of steel is normally found in boilers, plates or pipes.
The basic coating is of extra moisture resistant type, but as for all basic electrodes, they should be protected against humidity. See section on afterdrying of basic electrodes.
For best results on Chromium alloyed materials thicker than 8–10 mm, pre-heating of the welding area to
00–50°C is recommended.
The electrodes may be used in all positions, with DC positive or negative polarity.
Vertical welding should be carried out upwards.
As for all basic electrodes the arc should be kept short.
For root pass in open joints DC nega-tive polarity is preferable. For filling the joint use DC+ polarity.
Note that for root passes, TIG welding with Icromo-16 may be an advan-tage.
V-groove with 60° angle is recom-mended for butt welding of ship plates up to 1 mm thickness. Root opening should be 1– mm, and nose thickness should be 0.5–1 mm.
In cases where stress relieving is demanded, the temperature should be between 60°C and 70°C. As a gen-eral rule the temperature should be maintained for 1 hour per inch plate thickness (30 minutes for 1/" plate) to ensure full effect.
Boiler tubes welded to boiler tube plate
For t >12 mm welding from both sides is recommended
60°
0.5–1 mm
1– mm
t < 1 mm
Electrode
LMA
3.01
164
LHL-319 N
Electrode for Low Temperature Steel
Identification:
Classifications
Approvals
Type of current Welding positions
Materials to be welded
All weld metal composition
Typical mech . properties of weld metal
Packaging data Welding data
AC DC+
PA PB PC PF PE, PD
Imprint Unitor LHL-319 N / 8018-C1
SfA/AWS A 5 .5 EN-ISO 2560-A
E 8018-C1 E 46 6 Ni B 3 H5
DNV GL LR BV ABS
5YH10 6Y55H10 5Y4H5 5Y40MH5 3Y400H5
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
.5 350 78 1.8 095-683631 6
3. 350 48 1.8 095-683649 6
Re-drying temperature: 350 °C (66 °F) for two hours.
Diameter Current Arc time **/ Deposition rate** Electrodes per fume class*
mm . range, A electrode, sec . Kg/h kg weld metal** Danish Std .
.5 70–110 55 0.9 70
3. 105–150 63 1.4 4 3
* MSDS available on request.
** 90% of max. amperage
Tensile strength yield strength Elongation Impact value
MPa MPa % ISO-V (J)
610 50 6 At –60°C = 105
C Mn Si P S Ni
0.0 - 0.10 0.65 - 1.15 0.15 - 0.55 max. 0.00 max. 0.00 .15 - .65
Pipe material API 5 Lx x5, x56, x60
Boiler & pressure vessel NF A36-05 A37FP, A4FP, A48FP, A5FP steel (for low temp. applic.) NF A36-07 A510FP, A530FP, A550FP
BS 1501 4-Gr. 490 to LT 60, 8
Fine grained steel DIN 1710 StE315 to StE460 NF A36-03 E355D, E390D, E430D, E445D Low temperature steel DIN 1780 11MnNi53, 13MnNi63, 14NiMn6, 10Ni14
NF A36-08 1.5Ni 85/355 (15N6), .5Ni 85/355 (10N9) High strength steel NF A36-04 E40T, E460T
Can also be used for welding CorTen steel and Mayari R steels.
3.01
LHL-319 N
LHL-319 N is an all position basic electrode with .6% Nickel giving 115–10% recovery. The electrode is specially suited for low tempera-ture applications. Low temperatempera-ture steel containing Nickel is used more and more in processing equipment onboard ships carrying low tempera-ture cargo. We also find this type of steel in Ice-Class hull plates.
Excellent impact toughness at –60°C.
Guide the electrode at a slight angle, with short arc. High notch values are obtained with max. weaving .5 times core wire diameter. High strength fine grained structural steel with thickness above 15 mm should be preheated to approx. 100°C (10°F). Interpass temperature max. 150°C (300°F).
Store dry.
3.01
LHR-320 N
166
Electrode for Weathering Steel
Identification:
Classifications
Approvals
Type of current Welding positions
Materials to be welded
All weld metal composition
Typical mech . properties of weld metal
Packaging data Welding data
AC DC+
PA PB PC PF PE, PD
Imprint Unitor LHR-30 N / 8018-G
SfA/AWS A 5 .5 EN-ISO 2560-A
E 8018-G E 46 5 Z B 3
DNV GL LR BV ABS
3YH10 3YH15 3, 3YH15 3YH10 3YH5
Diameter Length Electrodes Net weight Product No . Boxes
mm . mm . per box per box per box per carton
.5 350 88 1.7 095-683656 6
3. 350 48 1.8 095-699389 6
Re-drying temperature: 350 °C (66 °F) for two hours.
Re-drying temperature: 350 °C (66 °F) for two hours.