Diámetros/embalaje
Diámetros |
BOBINA 6,4 KG |
---|---|
2,0 mm | ED031968 |
DETALLES
Ha sido microaleado para ser capaz de exceder valores de impacto de 68 J @ -29° C. Se recomienda para la pasada caliente, relleno y peinado de tubos de hasta grado X80.
Características
- Soldadura vertical descendente en pasada caliente, de relleno y de peinado de tubos de hasta grado X80
- Capaz de producir depósitos de soldadura con una dureza al impacto superior a 122 J (90 ft;middotlbf) a -40 grados C (-40 grados F)
- Embalaje hermético ProTech®.
Aplicaciones típicas
- Soldadura de pasada en caliente, de relleno y de peinado de tuberías hasta grado X80
- Aplicaciones de tuberías en zonas con temperaturas frías
Posiciones de soldadura
- Todas posiciones excepto vertical ascendente
Gas de protección
- N/A
Información de mantenimiento
Documentación
También puede necesitar
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. Página de búsqueda de HDS
CONFORMANCE
CONFORMANCES | SPECIFICATION | CLASSIFICATION |
---|---|---|
AWS | AWS A5.29 | E81T8-G |
AWS | AWS A5.36 | E81T8-A4-K12 |
MECHANICAL PROPERTIES
Classification | Polarity |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) |
Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F) |
Hardness Rockwell B |
---|---|---|---|---|---|---|---|
E81T8-G Requirement | DC- | 470 (68) min. | 550-690 (80-100) | 19 min. | Info. Only | ||
E81T8-A4-K12 Requirement | DC- | 470 (68) min. | 550-690 (80-100) | 19 min. | 27 (20) min. | Info. Only | |
Typical Result, As-welded | DC- | 490-560 (70-81) | 550-630 (80-91) | 20-29 | 52-301 (38-222) | 94-167 (69-123) | 92 |
Typical Result, As-welded | DC+ | 520-540 (76-78) | 590-610 (86-88) | 20-26 | 94-235 (69-174) |
DEPOSIT COMPOSITION
Classification | Polarity | %Al | %B | %C | %Cr | %Cu | %Mn | %Mo | %Ni | %P | %S | %Si | %V |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
E81T8-G Requirement | DC- | 1.8 max. | Info. Only | 0.30 min. * | 0.50 min. * | 0.20 min. * | 0.50 min. * | 0.030 max. | 0.030 max. | 1.00 max. | 0.10 min. * | ||
E81T8-A4-K12 Requirement | DC- | 1.8 max. | 0.15 max. | 0.20 max. | 1.50 - 2.75 | 0.50 max. | 0.75 - 2.00 | 0.030 max. | 0.030 max. | 0.80 max. | 0.05 max. | ||
Typical Result | DC- | 0.7-1.2 | 0.0014 max. | 0.01-0.03 | 0.04-0.07 | 0.04-0.07 | 2.21-2.56 | 0.02 max. | 1.04-1.22 | 0.006-0.015 | 0.003 max. | 0.12-0.15 | 0.003 max. |
Typical Result | DC+ | 1.0-1.2 | 0.001 max. | 0.01-0.02 | 0.05-0.06 | 2.27-2.46 | 0.01-0.02 | 1.12-1.15 | 0.008-0.010 | 0.003 max. | 0.12-0.14 | 0.003 max. |
TYPICAL OPERATING PROCEDURES
Diameter | Polarity |
CTWD
mm (in.)⁽¹⁾ |
Wire Feed Speed
m/min (in/min) |
Voltage
volts |
Approx. Current
amps |
Melt-off Rate
kg/hr (lb/hr) |
Deposition Rate
kg/hr (lb/hr) |
Efficiency
% |
---|---|---|---|---|---|---|---|---|
1.7mm (0.068 in) | DC- | 19 (3/4) | 1.7-3.8 (70-150) | 16-22 | 165-250 | 1.4-3.1 (3.1-6.8) | 1.1-2.5 (2.5-5.5) | 78-81 |
2.0 mm (5/64 in) | DC- | 19 (3/4) | 1.7-3.3 (70-130) | 17-20 | 195-295 | 1.8-3.5 (4.0-7.6) | 1.5-2.9 (3.3-6.4) | 82-83 |
NOTES
Note |
---|
* To meet the requirements of a "G" classification, the chemical composition of the weld deposit must meet the minimum requirement for one or more of these elements. |
⁽¹⁾ For electrical stickout (ESO) subtract 6.4 mm (1/4 in) from contact tip to work distance (CTWD). |