304 stainless steel welding screw spot stud m6 m8 10PCS | Обустройство дома

 

brand Centrode Texture of material 304 stainless steel name (of a thing or organization) Spot welding screws surface treatment unhandled standard GB10432 package description Plastic bags / cartons size For example: m3 * 5 diameter 3mm length 5mm (including head)
  Note: the value is a single batch of manual measurement, there is a certain error, please take the physical object as the standard, and those who care should take a careful photo or contact customer service! Unit: mm Nominal diameter
d

pitch

P

dk K dp z max min max min max min max min M3 0.5 4.65 4.35 1.3 0.7 0.78 0.52 0.53 0.27 M4 0.7 5.65 5.35 1.3 0.7 0.78 0.52 0.63 0.37 M5 0.8 6.68 6.32 1.4 0.8 0.88 0.62 0.73 0.47 M6 1 7.68 7.32 1.4 0.8 0.88 0.62 0.83 0.83 M8 1.25 9.72 9.29 1.5 0.9 0.88 0.62 0.93 0.93   Question 1 1. Why does stainless steel also be magnetic?

304 stainless steel belongs to the Aolite stainless steel, The Auschwitz in the cold processing process has some or a small amount of conversion into the marcantia, the marcantia is magnetic, so 304 stainless steel is non-magnetic or micromagnetic. Specific can Baidu query 304 stainless steel why magnetic.

Question 2 2. How to identify authentic 304 stainless steel products?

(1) Support the detection of 304 stainless steel special detection liquid medicine. If it does not change color, it will be authentic 304 stainless steel.
② support chemical composition analysis and spectral analysis.
(3) Support smoke testing, simulation of the actual use of the environment.

Question 3 3. What kinds of stainless steel are most commonly used?

(1) 201 stainless steel, suitable for use in dry environment, water is easy to rust.
(2)304 stainless steel, outdoor or humid environment, corrosion resistance to strong acidity.
(3)316 stainless steel, added molybdenum, more corrosion-resistant and perforated, especially suitable for seawater and chemical media.