|Main and minor components||Min.content(%)|
Dimensions and tolerances:
Ribbon Length/Spool: ≥ 50 m / Spool
Ribbon Thickness: ≥ 50 g / Spool
Ribbon Thickness: 0.015-0.029 mm: +0.002/-0.003mm; 0.030-0.042 mm: +0.003/-0.004mm.
1.5-2.99 mm: ±0.10 mm
3.00-4.99mm: ±0.20 mm
5.0-9.99mm: ±0.30 mm
10.00-20.00mm: ±0.50 mm
Edge Angle α5: ＜13o
Tensile Strength: 750-1000MPa
Surface condition: The surface is dull and free of oxide layers and impurities that are visible to the naked eye. The final annealing is done in continuous furnaces under ruducing hydrogen atmosphere.
Appearance: The edges are free of defects such as kinks, splits ,ripples, twists or burrs.
Sagitta: Curvature of ribbon≤2mm/200mm.
Edge line: The fringing to the edge line may not exceed 40 μm to the middline.