merged-arc Welding Wire

merged-arc Welding Wire

JQ.TH550-NQ-Ⅲ
GB：
AWS：
Current：Used together with sintered flux 101. It can be used for welding atmospheric corrosion-resistant steel structures with tensile strength of 550MPa, such as locomotive vehicles, offshore engineering, bridges, etc.
Main Applications：

JQ.TH550-NQ-Ⅲ

According with TB/T 铁道部运装货车[2005]67号 文件要求


Introduction: The deposited metal has excellent atmospheric corrosion-resistance, crack-resistance, plasticity and toughness.


Uses: Used together with sintered flux 101. It can be used for welding atmospheric corrosion-resistant steel structures with tensile strength of 550MPa, such as locomotive vehicles, offshore engineering, bridges, etc.


Chemical Composition of Welding Wire(%)
C
Mn
Si
S
P
Cu
Ni
Cr
≤0.12
1.00~2.00
≤0.35
≤0.020
≤0.025
0.20~0.50
0.20~0.80
0.30~0.90

Examples of Chemical Composition of Deposited Metal (%)
C
Mn
Si
S
P
Cu
Ni
Cr
0.076
1.32
0.33
0.009
0.014
0.21
0.30
0.44

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥550
≥450
≥22
≥60(-40℃)
General Result
641
547
25
65

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