厚度/mm | 高級精度(A)的厚度答應偏差/mm | |
寬度<500mm | 寬度500-1500mm | |
O.10,O.15,0.20 | ±O.02 | ±0.03 |
O.25,O.30,O.35,O.40 | ±O.03 | ±O.04 |
0.45,O.50,0.55,O.60 | ±O.04 | ±0.05 |
0.65,O.70,0.75 | ±O.05 | ±0.06 |
O.80,0.90,0.95,1.00 | ±O.05 | ±O.08 |
1.10,1.20,1.25 | ±0.05 | ±0.09 |
1.30,1.40,1.50 | ±0.06 | ±O.11 |
1.60,1.70,1.80 | ±O.07 | ±O.12 |
2.0.2.2 | ±0.08 | ±O.14 |
2.5.2.8.3.O | ±0.09 | ±O.16 |
3.2.3.5 | ±0.10 | ±O.18 |
3.9.4.0 | ±0.20 | |
4.2.4.5 | 士0.22 | |
O.50~1.0 | ±O.03 | ±0.04 |
>1.0~1.5 | 士O.04 | ±0.05 |
>1.5~2.O | +O.04 —0.05 | ±O.05 |
>2.0~2.5 | ±O.05 | 土0.06 |
>2.5~3.O | ±O.07 | ±0.08 |
>3.O~4.O | ±0.10 |
寬度答應偏差 | 長度答應偏差 |
寬度≤800mm者……+6mm 寬度>800mm者……+lOmm | 長度≤1500mm者……+lOmm 長度>1500mm者……+15mm |
平面度 | |
高級精度(A)…… ≤15mm/m 厚度≤2.5mm者……≤6mm/m 超級(CA) 厚度>2.5mm者……≤15mm/m |
牌號 | 化學成分(質量分數)(%)≤ | ||||||||
C | Si | Mn | P | S | Al | Cr | Ni | Cu | |
DT3 DT3A | O.04 | O.20 | 0.30 | O.020 | O.020 | O.50 | 0.10 | 0.20 | 0.20 |
DT4 DT4A DT4E DT4C | O.025 | 0.20 | 0.30 | 0.020 | O.O29 | O.15~O.50 | 0.10 | O.20 | 0.20 |
牌號 | 矯頑力Hc/(A/m)≤ | 矯頑力時效增值△Hc/(A/m)≤ | 最大磁導 率口/μ(H/m×10 -3)≥ | 磁感應強度B/T≥ | ||||||
B200 | B300 | B500 | B1000 | B2500 | B5000 | B10000 | ||||
DT3 | 96.O | 7.5 | 1.20 | 1.30 | 1.40 | 1.50 | 1.62 | 1.71 | 1.8 | |
DT4 | 9.6 | |||||||||
DT3A | 72.0 | 8.8 | ||||||||
DT4A | 7.2 | |||||||||
DT4E | 48.O | 4.8 | 11.3 | |||||||
DT4C | 32.0 | 4.0 | 15.1 |