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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