化學成分      
                                                          
| 焊絲型號 | C | Mn | Si | Cr | Ni | Cu | S | P | 
| H | ≤0.10 | 0.30-0.60 | ≤0.03 | ≤0.20 | ≤0.30 | ≤0.20 | ≤0.030 | ≤0.030 | 
| H08MnA | ≤0.10 | 0.80-1.10 | ≤0.02 | ≤0.20 | ≤0.30 | ≤0.20 | ≤0.030 | ≤0.030 | 
| H15MnA | 0.11-0.18 | 0.80-1.10 | ≤0.03 | ≤0.20 | ≤0.30 | ≤0.20 | ≤0.035 | ≤0.035 | 
| H10Mn2 | ≤0.12 | 1.50-1.90 | ≤0.07 | ≤0.20 | ≤0.30 | ≤0.20 | ≤0.035 | ≤0.035 | 
用途:
配合焊劑用于耐較高溫度的鍋爐、壓力容器等的低合金鋼的焊接。
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