TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
焊丝化学成分(%)
项目
|
C
|
Mn
|
Si
|
S
|
P
|
Mo
|
Cr
|
Cu
|
保证值 |
≤0.12 | 0.75~1.50 | 0.30~0.90 | ≤0.025 | ≤0.025 |
0.90 ~1.20 |
2.10~2.70 | ≤0.40 |
熔敷金属力学性能(Ar+20%CO2,热处理温度:690±15℃×(60~75min)
试验项目
|
Rm
(MPa) |
ReL/Rp0.2
(MPa) |
A
(%) |
保证值 | ≥620 | ≥540 | ≥17 |
例值 | 710 | 608 | 20 |