High Carbon steels Flux cored wire E70T-4 weld fabrication jointing



Application
Suitable for building structure, steel frame and other steel structure butt welding and fillet welding.
The standard we met: GB/T10045 T 49 Z T4-0 N A , AWS A5.20 E70T-4 & A5.20M E490T-4, ISO17632-A:T42 Z Y NO 3, ISO 17632-B:T49 Z-0 NO A,JIS Z3313 T49ZT4-0NA.
CHEMICAL COMPONET:
ALLOY(wt%) | C | Mn | Si | Cr | Ni | Mo | P | S | AI |
GB/T RULES | 0.30 | 2.00 | 0.90 | 0.20 | 0.50 | 0.30 | 0.030 | 0.030 | 2.00 |
AWS RULES | 0.30 | 1.75 | 0.30 | 0.20 | 0.50 | 0.30 | 0.030 | 0.030 | 1.80 |
EXAMPLE VALUE | 0.220 | 0.550 | 0.30 | 0.03 | 0.02 | 0.01 | 0.013 | 0.002 | 1.5 |
MECHANICAL PROPERTY:
PROPERTY | YIELD STRENGTH(MPa) | EXTENSION STRENGTH(MPa) | HEATTREAMENT℃xh | IMAPACT VALUE J/℃ | ELONGATION(%) | ||||
GB/T RULES | 390 | 490-670 | AW | - | 18 | ||||
AWS RULES | 390 | 490-670 | AW | - | 22 | ||||
EXAMPLE VALUE | 430 | 590 | AW | - | 25 |
RECOMMENDED WELDING PARAMETERS:
DIAMETERS SPECIFICATIONS(mm) | 2.4 | 2.8 | 3 | ||||
VOLT | 24-32 | 24-35 | 24-35 | ||||
AMP | 260-400 | 280-450 | 280-450 | ||||
LENGTH:MM | 65-70 | 65-70 | 90-95 |
Peculiarity

Under the condition of base metal rust, oxidation and high sulfur content.
The use has good porosity resistance.


Welding pass forming beautiful, good slag removal.
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Good desquamation
Beautiful shape
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Three gates 2# are not motile
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CHEMICAL COMPONET:
ALLOY(wt%) | C | Mn | Si | Cr | Ni | Mo | P | S | AI |
GB/T RULES | 0.30 | 2.00 | 0.90 | 0.20 | 0.50 | 0.30 | 0.030 | 0.030 | 2.00 |
AWS RULES | 0.30 | 1.75 | 0.30 | 0.20 | 0.50 | 0.30 | 0.030 | 0.030 | 1.80 |
EXAMPLE VALUE | 0.220 | 0.550 | 0.30 | 0.03 | 0.02 | 0.01 | 0.013 | 0.002 | 1.5 |
MECHANICAL PROPERTY:
PROPERTY | YIELD STRENGTH(MPa) | EXTENSION STRENGTH(MPa) | HEATTREAMENT℃xh | IMAPACT VALUE J/℃ | ELONGATION(%) | ||||
GB/T RULES | 390 | 490-670 | AW | - | 18 | ||||
AWS RULES | 390 | 490-670 | AW | - | 22 | ||||
EXAMPLE VALUE | 430 | 590 | AW | - | 25 |
RECOMMENDED WELDING PARAMETERS:
DIAMETERS SPECIFICATIONS(mm) | 2.4 | 2.8 | 3 | ||||
VOLT | 24-32 | 24-35 | 24-35 | ||||
AMP | 260-400 | 280-450 | 280-450 | ||||
LENGTH:MM | 65-70 | 65-70 | 90-95 |
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