不銹鋼焊帶化學(xué)成分：（%）
| 型號 | C | Mn | Si | Cr | Ni | Mo | Nb | Cu | S |
P | |
| D308L | 范圍 | ≤0.025 | 1.0~2.5 | ≤0.35 | 19.5~21.5 | 9.5~11.0 | ≤0.50 | - | ≤0.20 | ≤0.010 | ≤0.025 |
| 例值 | 0.013 | 1.80 | 0.30 | 20.4 | 10.0 | 0.1 | - | 0.1 | 0.007 | 0.013 | |
| D347L | 范圍 | ≤0.025 | 1.0~2.5 | ≤0.35 | 19.5~21.5 | 9.5~11.0 | ≤0.50 | 0.5~1.0 | ≤0.20 | ≤0.010 | ≤0.025 |
| 例值 | 0.012 | 1.81 | 0.32 | 20.4 | 10.2 | 0.15 | 0.60 | 0.09 | 0.006 | 0.014 | |
| D309L | 范圍 | ≤0.025 | 1.0~2.5 | ≤0.35 | 21.0~23.0 | 11.0~14.0 | ≤0.50 | - | ≤0.20 | ≤0.010 | ≤0.025 |
| 例值 | 0.014 | 1.97 | 0.32 | 22.3 | 11.6 | 0.12 | - | 0.12 | 0.007 | 0.015 | |
|
D309MoL |
范圍 | ≤0.025 | 1.0~2.5 | ≤0.35 | 21.0~23.0 | 11.0~14.0 | 2.5~3.0 | - | ≤0.20 | ≤0.010 | ≤0.025 |
| 例值 | 0.013 | 1.74 | 0.30 | 22.0 | 11.5 | 2.63 | - | 0.11 | 0.006 | 0.011 | |
| D316L | 范圍 | ≤0.025 | 0.5~2.5 | ≤0.35 | 18.0~20.0 | 11.0~14.0 | 2.5~3.0 | - | ≤0.3 | ≤0.010 | ≤0.025 |
| 例值 | 0.013 | 1.80 | 0.31 | 18.8 | 12.1 | 2.59 | - | 0.15 | 0.005 | 0.014 |
匹配焊劑
JWJ34和JWJ36都是中性燒結(jié)型埋弧焊劑，具有優(yōu)良的高溫脫渣性能,焊縫金屬表面成形光滑平整。不燒損主要合金元素，基本不增碳。其中JWJ34適用于D308L、D309L、D347L型不銹鋼帶極埋弧堆焊，采用兩帶一劑堆焊技術(shù)，即過渡層和耐蝕層焊帶共用同一焊劑。JWJ36是D316L、D309MoL型不銹鋼帶極埋弧堆焊專用焊劑。
JWJ205為不銹鋼帶極電渣堆焊專用焊劑，適用于D308L、D309L、 D347、D316L等焊帶
復(fù)堆層化學(xué)成分一例：（%）
| C | Si | Mn | Cr | Ni | S | P | N | 其它 | 鐵素體 | |
| D347L/D309L/JWJ34 | 0.019 | 0.46 | 1.54 | 19.6 | 10.1 | 0.009 | 0.019 | 0.040 | Nb :0.42 | 7 |
| D308L/D309L/JWJ34 | 0.018 | 0.45 | 1.58 | 19.7 | 9.8 | 0.010 | 0.017 | 0.036 | - | 7 |
| D316L/JWJ36 D309L/JWJ34 |
0.016 | 0.48 | 1.55 | 18.6 | 11.6 | 0.009 | 0.020 | 0.038 | Mo:2.3 | 7 |
| D316L/D309MoL/ JWJ36 | 0.019 | 0.43 | 1.59 | 18.7 | 11.6 | 0.008 | 0.018 | 0.039 | Mo:2.4 | 7 |
