This Technical Data Sheet is applied to 1235 alloy soft temper 10 - 25 microns plain foil.
2.1 Alloy, Temper and Dimension
2.2 Chemical Composition
<2.4 Dimensional Tolerances
Thickness Tolerance: within + 4%
Width Tolerance : + 1.0 mm
Roll Core: Steel core with ID 76.2mm and 152.4mm and protrusion of 1-10mm at both ends.
2.5 Surface Condition
One side matt and the other bright, or both sides bright. Surface free from defects that are detrimental to the application such as corrosion, broken matt, indent, loose edge, dent mark, stains, line marks, scratches, holes, etc.
2.6 Other Conditions
Edge: No telescopic, oscillation, slanting and collapse marks.
Joints: For roll OD≥200-450mm, allowing 0-1 joints of each roll with ultrasonic welding;
For roll OD>450-650mm, allowing 0-2 joints of each roll with ultrasonic welding;
For roll OD>650mm, allowing 0-3 joints of each roll with ultrasonic welding;
The length between joints is more than 1000 meters.
Unwind: Coil is free from stickiness and can be unwound freely to the core.
3 TEST METHOD
|Quality Topic||Inspection method||Test frequency|
|Chemical composition||Spectral analysis of the barren producer||Each casting block|
|Strength||Tensile test DIN EN 546-2, §3||Random sampling|
|Width & O. D.||Measuring tape||Each coil|
|Numbers of Splices||visual||Each coil|
|Windings||visual, measuring tape||Each coil|
|Flatness & Surface||visual||Each coil|
|Pores, Rolling holes||DIN EN 546-4, § 5, light table||Random sampling|
4 PACKAGING AND LABELLING
4.1 Packing Method
Each roll shall be suspended at both sides of the wooden box. Rolls shall be wrapped with EPE as first layer coupled with silicon gel desiccant in both sides of roll to protect from corrosion, PE film as 2nd layer and then another layer of PE film for enhancing protection.
4.2 Label Identification
With information of: Manufacturer, Goods Description, S/C NO., Lot No. Alloy & Temper, Dimension, Packing Date, or according to the clients requirements.