镍及镍合金焊条可分为五大类，即工业纯Ni、Ni-Cu、Ni-Cr-Fe、Ni-Mo和Ni-Cr-Mo。每一类可分为一种或多种型号的焊条。这类焊条主要用于接焊镍或高镍合金，有时也可用于异种金属的焊接或堆焊·
低合金耐热钢焊丝
| 品名 | 类别 | AWS型号 | 典型化学成分，% | 特点和用途 | |||||
| C | Mn | Si | Cr | Ni | Mo | ||||
| 低合金钢焊丝 | Techalloy 80S-B2 | ER80S-B2 | 0.09 | 0.55 | 0.48 | 1.35 | | 0.55 | 1.25Cr-0.5Mo钢焊接 |
| Techalloy 80S-B6 | ER80S-B6 | 0.07 | 0.44 | 0.36 | 5.45 | | 0.55 | 5CrMo钢焊接 | |
| Techalloy 80S-B8 | ER80S-B8 | 0.08 | 0.45 | 0.34 | 9.15 | | 1.05 | 9CrMo钢焊接 | |
| Techalloy 90S-B9 | ER90S-B9 | 0.11 | 0.60 | 0.19 | 9.0 | 0.5 | 0.95 | P91(T91)钢焊接 | |
| Techalloy 110S-1 | ER110S-1 | 0.07 | 1.55 | 0.45 | 0.3 | 2.30 | 0.42 | σS 680Mpa,Ak 87J(-51℃) | |
| Techalloy 120S-1 | ER120S-1 | 0.08 | 1.5 | 0.45 | 0.35 | 2.55 | 0.50 | σs 730Mpa,Ak 80J(-51℃) | |