Cold straightening
Name: Cold straightening
Grades: DT3, DT4, DT4A, DT4E, DT4C
Specification: Diameter 4 ~ 40mm
Picture: (attach)

Description:

1. Features: Material is stable, section is smooth, length is straight as a ramrod, and diameter is precise. Also can process, such as: Cold upsetting, straightening, and cold drawing.
2. Characteristics: High electromagnetic properties, and can cold and hot processing.
3. Product use: Electromagnetic iron core, instrument components, etc.
4. Packing: By striped fabric, then banding by steel bar

5. Order introductions:
1) Choose the correct grades. According to the magnetic senior, the electromagnetic pure iron can be spilt into three levels: (A), superfine (E), super (C), the higher requirement of magnetic, the higher grade the user shall choose (E, C).
2) Generally, electromagnetic pure iron series guarantee electromagnetic properties; Chemical composition is not the acceptance condition. If user requests the chemical composition, please indicate in the purchase contract.
3) The electromagnetic properties of leaving factory products are the sample tests under the condition of the magnetic annealing, but delivery situation is hot rolling, hot forging or softening annealing (cold rolling, cold drawing ). Therefore, the parts made by user should anneal, and then the material can fully exert potential magnetic property. Magnetic annealing process: If the carbon content of product≤ 0.007%, user can adopt 850 ° C - 3 hours simplifying processing, when the carbon content > 0.007%, then according to the GB requirement.
4) The size of cold pulling pure iron is very precise, if there are some special requirements of tolerance, please explain before ordering.
5) Generally, goods that no need processing, delivery cycle is in 3 days; The goods that need processing, we will determine another time to deliver goods according to how complex the drawing is.