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CHT70BM
Flux Cored Wire for Mild Steel |
AWS A5.20 E70T-5M
BS EN ISO 17632 T423BM3H5
GB 10045 E500T-5M |
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Description:
CHT70BM
is one of basic type
flux cored wire with mixture gas shielding and it is applicable for flat or
horizontal filler of higher tensile, better crack resisting mild steel
structures fabricated by 490MPa grade tensile strength steels, such as
pressure vessels, machinery, bridges, H-beam and so on. Also it could be
vertical up welding on which angle below 45°.
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Chemical
Composition of Deposited Metal(%)
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C |
Mn |
Si |
S |
P |
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Standard |
≤0.12 |
≤1.75 |
≤0.90 |
≤0.03 |
≤0.03 |
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Typical |
0.07 |
1.46 |
0.50 |
0.013 |
0.018 |
Mechanical Properties of Deposited Metal (AW)
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Yield Point
ReH
(MPa) |
Tensile Strength
Rm (MPa) |
Elongation
A4 (%) |
Impact Value (J)
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Shield Gas |
|
-30℃ |
75-80%Ar + balance CO2 |
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Standard |
≥390 |
490-670 |
≥22 |
≥27 |
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Typical |
450 |
550 |
28 |
150 |
Recommended Current Range (DC+)
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Diameter（mm） |
1.2 |
1.4 |
1.6 |
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Current
（A） |
F |
120-320 |
150-380 |
180-430 |
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HF |
120-320 |
150-380 |
180-430 |
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V, H |
120-280 |
150-270 |
180-280 |
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