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国内阀门材料常用技术标准 低合金钢焊条 焊脚尺寸_阀门标准
国内阀门材料常用技术标准 低合金钢焊条 焊脚尺寸
| 焊条型号 | 焊条直径 | 试板尺寸 | 焊接位置 | 焊脚尺寸 | |
| 厚度T | 最小长度L | ||||
|
EXX10-X EXX11-X |
2.0 2.5 | 4 | 250 | 立、仰 | ≤4.0 |
| 3.2 | 6 | 300 | ≤4.8 | ||
| 4.0 | 10 | 350 | ≤6.4 | ||
| 5.0 | ≤8.0 | ||||
| 5.6 6.0 6.4 | 12 | 450 | 平 | ≤6.4 | |
|
EXX00-X EXX03-X EXX13-X |
2.0 2.5 | 4 | 250 | 立、仰 | ≤4.0 |
| 3.2 | 6 | 300 | ≤4.8 | ||
| 4.0 | 10 | 350 | ≤6.4 | ||
| 5.0 | 12 | ≤9.6 | |||
|
EXX15-X EXX16-X |
2.0 2.5 | 4 | 250 | ≤4.0 | |
| 3.2 | 6 | 300 | ≤4.8 | ||
| 4.0 | 10 | 350 | ≤8.0 | ||
| 5.0 | 平 |
≥4.8 |
|||
| 5.6 6.0 6.4 | 12 | 450 | ≥7.2 | ||
| EXX18-X | 2.0 2.5 | 4 | 250 | 立、仰 | ≤4.8 |
| 3.2 | 6 | 300 | ≤6.4 | ||
| 4.0 | 10 | 350 | ≤8.0 | ||
| 5.0 | 平 | ≥6.4 | |||
| 6.0 | 12 | 450 | ≥8.0 | ||
|
E5020-X E5027-X |
3.0 | 6 | 300 | ≥3.2 | |
| 4.0 | 10 | 350 | ≤8.0 | ||
| 5.0 | ≥6.4 | ||||
| 5.0 6.0 6.4 | 12 | 450 | ≥7.2 | ||
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