Why is 321 stainless steel flat steel also magnetic?
Why does 321 stainless steel flat steel also carry magnets? People often think that magnets absorb stainless steel, verify its advantages and disadvantages and authenticity, do not attract non-magnetic, think it is good, the goods are genuine; the smoker is magnetic, it is considered a counterfeit fake. In fact, this is an extremely one-sided, unrealistic way of distinguishing mistakes.
There are many types of stainless steel, which can be divided into several categories according to the structure at room temperature:
1. Austenitic type: such as 304, 321, 316, 310, etc.;
2. Martensite or ferrite type: such as 430, 420, 410, etc.;
The austenite type is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic.
Most of the stainless steels used for decorative tube sheets are austenitic 304 materials, which are generally non-magnetic or weakly magnetic. However, magnetic properties may occur due to fluctuations in chemical composition or processing conditions due to smelting, but this cannot be considered as Counterfeit or unqualified, what is the reason?
Twisted steel diameter 4mm--10mm, common specifications for the 6*6mm and 5*5mm two, respectively by the coil diameter 8mm and 6.5mm twist drawing and. Material: low Carbon Steel Wire rod Q235. Twisted steel use: twist steel is widely used in Steel Plate, steel structure.
Torque: standard torque of 120mm/360 degrees, standard torque is relatively beautiful and practical.
Use: widely used in steel plate, steel or reinforced concrete instead of steel.
Advantages: twisted steel structures increase tension, appearance, greatly reduce the cost of capital; angular diameter accuracy.
In the steel plate is called bar (cross bar): a square section after twisting steel rod in orthogonal direction welded to the bearing flat steel, flat steel for fixing.
The utility model has the advantages of increasing the pulling force of the structure, beautiful appearance and greatly reducing the cost of capital. According to customer requirements and processing diameter.
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