Low-Alloy Steels Manual Electrode E7018-C1L offshore FPSO soldering
The main composition is 2.5%Ni steel, iron powder low hydrogen potassium type hand welding rod, at -75C operating temperature
The impact toughness of the deposited metal is excellent; Stable arc, less splash, good molding, easy slag removal
X-Ray performance is excellent
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Shanghai Morimatsu storage tank
Utility boiler
Reactor internals
CHEMICAL COMPONET:
ALLOY(wt%) | C | Si | Mn | P | S | Ni | Cr | Mo | Other | |
GB/T RULES | 0.038 | 0.22 | 0.68 | 0.007 | 0.006 | 2.49 | 0.016 | 0.05 | - |
MECHANICAL PROPERTY:
PROPERTY | YIELD STRENGTH(MPa) | EXTENSION STRENGTH(MPa) | Elongation(%) | IMAPACT VALUE J/℃ | Heat treatment °C*h | |||||
GB/T RULES | 410 | 518 | 26 | 100/-75 | 620*1 |
RECOMMENDED WELDING PARAMETERS:
DIAMETERS SPECIFICATIONS(mm) | 2.6*350 | 3.2*350 | 4.0*400 | 5.0*400 | |||||
ELECTRICITY (Amp) |
H/W | 70-100 | 100-140 | 140-180 | 180-230 | ||||
O/W | 60-90 | 90-130 | 120-160 | - |
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