Detalles
Designed for very high deposition rates and increased resistance to hydrogen cracking and porosity on steel containing sulfur or contaminates. Recommended for single or multiple pass welding on carbon steel and some low alloy steels in applications without impact strength requirements.
Características
- Very high deposition rates
- Increased resistance to hydrogen cracking and porosity
- Soft, low penetrating arc for minimal base material admixture
Servicio de información
Documentación
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CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.20 | E70T-4 |
| AWS | AWS A5.36 | E70T4-AZ-CS3 |
| CWB | CSA W48 | E490T4-AZ-CS3-H16 (E492T-4-H16) |
| DB | ISO 17632-A | T 38 Z V N 3 |
MECHANICAL PROPERTIES
| Classification | Polarity |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
|---|---|---|---|---|
| E70T-4 Requirement | DC+ | 400 (58) min. | 480-660 (70-95) | 22 min. |
| Typical Result, As-welded | DC+ | 410 (59) | 570-640 (82-93) | 23 |
DEPOSIT COMPOSITION
| Classification | Polarity | %Al | %C | %Mn | %P | %S | %Si |
|---|---|---|---|---|---|---|---|
| E70T-4 Requirement | DC+ | 0.30 max. | 1.75 max. | 0.03 max. | 0.03 max. | 0.60 max. | |
| Typical Result | DC+ | 1.3-1.5 | 0.20-0.27 | 0.35-0.45 | 0.011 | 0.004 | 0.26-0.30 |
TYPICAL OPERATING PROCEDURES
| Diameter | Polarity |
CTWD
mm (in.) |
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
% |
|---|---|---|---|---|---|---|---|---|
| 5/64 in (2.0 mm) | DC+ | 54 (2 1/4) | 5.1 (200) | 29-31 | 280 | 5.5 (12.2) | 4.6 (10.1) | 83 |
| 5/64 in (2.0 mm) | DC+ | 54 (2 1/4) | 6.1 (240) | 30-32 | 315 | 6.7 (14.8) | 5.5 (12.1) | 82 |
| 5/64 in (2.0 mm) | DC+ | 54 (2 1/4) | 6.6 (260) | 30-32 | 330 | 7.3 (16.0) | 6.0 (13.2) | 83 |
| 5/64 in (2.0 mm) | DC+ | 54 (2 1/4) | 7.6 (300) | 31-33 | 350 | 8.4 (18.6) | 6.9 (15.2) | 82 |
| 3/32 in (2.4 mm) | DC+ | 76 (3) | 2.8 (110) | 28-30 | 250 | 4.6 (10.1) | 3.7 (8.2) | 81 |
| 3/32 in (2.4 mm) | DC+ | 76 (3) | 3.8 (150) | 29-31 | 300 | 6.4 (14.0) | 5.3 (11.7) | 84 |
| 3/32 in (2.4 mm) | DC+ | 76 (3) | 4.7 (185) | 30-32 | 350 | 7.9 (17.4) | 6.6 (14.6) | 84 |
| 3/32 in (2.4 mm) | DC+ | 76 (3) | 5.8 (230) | 31-33 | 400 | 9.8 (21.6) | 8.3 (18.3) | 85 |
| 3/32 in (2.4 mm) | DC+ | 76 (3) | 7.0 (275) | 32-34 | 450 | 11.8 (26.0) | 10.0 (22.0) | 85 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 2 - 3/4 in (70 mm) | 76 (3) | 3.5 (140) | 28-30 | 380 | 9.0 (19.8) | 7.0 (15.5) | 78 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 2 - 3/4 in (70 mm) | 76 (3) | 4.4 (175) | 29-31 | 450 | 11.2 (24.6) | 9.1 (20.0) | 81 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 2 - 3/4 in (70 mm) | 76 (3) | 5.1 (200) | 30-32 | 500 | 12.7 (28.0) | 10.5 (23.2) | 83 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 2 - 3/4 in (70 mm) | 76 (3) | 7.6 (225) | 31-33 | 550 | 14.2 (31.4) | 11.9 (26.2) | 83 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 3 - 3/4 in (95 mm) | 102 (4) | 5.3 (210) | 35-37 | 450 | 13.2 (29.0) | 11.3 (25.0) | 86 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 3 - 3/4 in (95 mm) | 102 (4) | 6.4 (250) | 36-38 | 500 | 15.6 (34.5) | 13.2 (29.0) | 84 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 3 - 3/4 in (95 mm) | 102 (4) | 7.6 (300) | 37-39 | 550 | 18.8 (41.5) | 15.4 (34.0) | 82 |
| 0.120 in (3.0 mm) | DC+ Electrical Stickout: 3 - 3/4 in (95 mm) | 102 (4) | 9.0 (355) | 38-40 | 600 | 22.2 (49.0) | 18.0 (39.5) | 81 |