TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
參考電流(DC+)
焊條直徑mm
|
Φ3.2
|
Φ4.0
|
焊接電流A | 70~100 | 100~140 |
熔敷金屬化學(xué)成分(%)
項(xiàng)目
|
C
|
S
|
Mn
|
Si
|
P
|
Cr
|
Ni
|
Mo
|
Cu
|
Nb
|
Fe
|
標(biāo)準(zhǔn)值 |
≤0.10 | ≤0.015 |
≤2.0 |
≤0.80 |
≤0.020 |
20.0- 23.0 |
≥55.0 |
8.0-10.0 |
≤0.50 |
3.0-4.2 |
≤7.0 |
例值 | 0.047 | 0.003 | 0.35 | 0.41 | 0.006 | 21.33 | 余量 | 8.51 | 0.026 | 3.48 | 4.48 |
熔敷金屬力學(xué)性能
試驗(yàn)項(xiàng)目
|
Rm
MPa |
ReL/Rp0.2
MPa |
A/%
|
保證值 | ≥760 | ≥420 | ≥27 |
例值 | 768 | 483 | 41.0 |