General description
Revishield®70T-4 is a self shielded wire for high deposition rate downhand welding where impact properties are not required
Recommended for heavy sections or crack-sensitive applications
Can be used for rail joint welding
Current type / Shielding gases
DC +
Packaging, available sizes and identification
|
Unit type |
Net weight/unit (kg) |
Diameter (mm) |
||
|
2.0 |
2.4 |
3.0 |
||
|
Coils 14С |
6.35 |
X |
|
|
|
Spool 25RR |
12.5 |
X |
|
|
|
Coils 50С |
22.8 |
X |
X |
X |
Classification
|
AWS A5.20/A5.20M |
:E70T-4 |
|
EN758 |
:T 42 Z V N 3 |
Suggestions for use
Multi-pass fillet and lap welds
Single passes 4.5 to 9mm fillet and lap welds
Crack resistant fillets on higher strength steels where required joint strength can be obtained by using the proper fillet size
Joint welding of rail steel profiles with placed copper-backing.
Welding positions
Typical chemical composition of all weld metal, (w%)
|
C |
Mn |
Si |
P |
S |
Al |
|
0.23 |
0.45 |
0.26 |
0.006 |
0.006 |
1.40 |
Mechanical properties of all weld metal
|
|
Shielding gas |
Condition |
Yield strength (N/mm2) |
Tensile strength (N/mm2) |
Elongation (%) |
Impact (ISO), J |
|
|
+20oС |
|||||||
|
Required |
AWS A5.20 |
|
|
min 400 |
480 |
|
not required
|
|
Typical values after welding |
|
AW |
450 |
570 |
26 |
|
|
|
|
|
|
|
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| Revishield® 71T8 |
| Revishield® 71T-GS |
| Revishield® 71T-8 |
| Revishield® 61T8 |