焊丝化学成分（%）
|
牌号
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Cu
|
| JQ?H08A | ≤0.10 |
0.40~ 0.65 |
≤0.03 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.30 | ≤0.35 |
| 例值 | 0.060 | 0.45 | 0.012 | 0.014 | 0.020 | 0.017 | 0.022 | 0.113 |
| JQ?H08E | ≤0.10 |
0.40~ 0.65 |
≤0.03 | ≤0.020 | ≤0.020 | ≤0.20 | ≤0.30 | ≤0.35 |
| 例值 | 0.060 | 0.46 | 0.025 | 0.010 | 0.011 | 0.016 | 0.017 | 0.11 |
熔敷金属力学性能
|
试验项目配合焊剂
|
Rm
(MPa) |
ReL/Rp0.2
(MPa) |
A
(%) |
KV2(J)
|
|
-20℃
|
||||
| JQ?SJ301 | 430~600 | ≥330 | ≥20 | ≥27 |
焊丝规格
|
焊丝直径（mm）
|
Φ2.5
|
Φ3.2
|
Φ4.0
|
Φ5.0
|
898995850
