TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
焊劑化學(xué)成分(%)
項(xiàng)目
|
MgO+CaO+MnO+CaF2
|
SiO2
|
CaF2
|
S
|
P
|
保證值 | ≥50 | ≤20 | ≥15 | ≤0.050 | ≤0.060 |
例值 | 62 | 14 | 26 | 0.018 | 0.033 |
熔敷金屬力學(xué)性能(按TB/T2374-2008 )
試驗(yàn)項(xiàng)目配合焊絲
|
|
Rm
(MPa) |
ReL/Rp0.2
(MPa) |
A
(%) |
KV2 (J)
-40℃ |
|
JQ?TH550-NQ-Ⅲ | 保證值 | ≥550 | ≥450 | ≥22 | ≥60 | |
例值 | 575 | 460 | 29.5 | 142 |