項 目 \ 牌 號 |
NZM-40 |
SN-35 |
SN34 |
SN33 |
SN32 |
HN34 |
HN33 |
HN32 |
HN34S |
|
|
≥40 |
≥45 |
≥42 |
≥40 |
≥35 |
≥40 |
≥38 |
≥33 |
≥42 |
|
Fe2O3 % |
≤2.0 |
≤1.3 |
≤1.3 |
≤1.5 |
≤1.6 |
≤1.8 |
≤1.8 |
≤1.8 |
≤1.6 |
|
耐火度 ℃ |
≥1730 |
≥1770 |
≥1750 |
≥1730 |
≥1710 |
≥1750 |
≥1730 |
≥1710 |
≥1750 |
|
顯氣孔率 % |
≤15 |
≤14 |
≤16 |
≤16 |
≤16 |
≤19 |
≤19 |
≤19 |
≤18 |
|
常溫耐壓強度 Mpa |
≥49 |
≥70 |
≥60 |
≥50 |
≥45 |
≥40 |
≥35 |
≥35 |
≥45 |
|
重燒線 |
1500℃×2h |
|
±0.2 |
±0.2 |
|
|
|
|
|
|
1350℃×2h |
|
|
|
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
|
荷重軟化溫T2 ℃ |
≥1480 |
≥1500 |
≥1480 |
≥1450 |
≥1400 |
≥1400 |
≥1370 |
≥1350 |
≥1400 |
|
用 途 |
各種工業(yè)窯爐及熱工設備。 |