Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304-Yiwu Market-Chinagoods

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Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 details Picture

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 Specification image

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 Application Scenario

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 Item Picture

Attributes

Key attributes

Place of origin

China

Material

304 stainless steel

Brand

SYD/ Shenyeda

Product code

1410381375446

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 1

Brand	SYD/ Shenyeda	Material	304 stainless steel
Name	304 hexagon socket expansion screw	Surface treatment	The natural color of stainless steel
Standard	Metric system	Packaging instructions	Plastic bags/paper boxes
"Size"	For example: M6*100 (thread diameter 6mm, screw length 100mm)

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 4

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 5

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 11

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 14

Chemical composition, %,max
Group	C	Si	Mn	P	S	Cr	Mo	Ni	Cu	Characteristics
304-A2	0.1	1	2	0.05	0.03	15-20		8-19	4	The work hardening rate is moderate, suitable for general cold working and drawing. It has good cold working performance and is widely used in hexagon socket screws, nuts and washers
316-A4	0.08	1	2	0.045	0.03	16-18.5	2-3	10-15	1	Molybdenum is added, and its corrosion resistance is stronger than that of 304. It is particularly suitable for seawater and chemical media, and has better corrosion resistance and pitting corrosion resistance.
Note If the nickel content is less than 8%, the minimum content of manganese must be 5% When the nickel content is greater than 8%, there is no minimum limit on the copper content 3) If the chromium content is less than 17%, the minimum nickel content is 12% 4) For austenitic stainless steel with a maximum carbon content of 0.03%, the nitrogen content can be as high as 0.22 5) For products with larger diameters, to achieve the specified mechanical properties, the carbon content may be higher in the manufacturer's manual, but for martensitic steel, it should not exceed 0.12%

Mechanical properties
Category	Group	Performance grade	Screw diameter	Tensile strength mpa/mm ²	The non-proportional elongation is stipulated to be mpa/mm ²	Elongation after fracture mpa/mm ²
Austenite	A2, A4	50	≤ 39	500	210	0.6 d
		70	≤ 24	700	450	0.4 d
		80	≤ 24	800	600	0.3 d

Hexagon socket expansion bolt, extended eye expansion screw, external hoisting expansion bolt tube, stainless steel 304 pic 15

Question 1	Why does stainless steel also have magnetic properties? 304 stainless steel is an austenitic stainless steel. During cold working, some or a small amount of austenite transforms into martensite, which is magnetic. Therefore, 304 stainless steel is non-magnetic or slightly magnetic. For specific reasons, you can search on Baidu to find out why 304 stainless steel contains magnetism.
Question 2	2. How to identify genuine 304 stainless steel products? It supports the special detection solution for 304 stainless steel for testing. If it does not change color, it is genuine 304 stainless steel. ② Supports chemical composition analysis and spectral analysis. ③ Supports smoke testing to simulate actual usage environments.
Question 3	3. What are the most commonly used types of stainless steel? 201 stainless steel is suitable for use in dry environments but is prone to rust when exposed to water. ②304 stainless steel, suitable for outdoor or humid environments, with strong corrosion and acid resistance. ③316 stainless steel, with molybdenum added, has better corrosion resistance and pitting corrosion resistance, and is particularly suitable for seawater and chemical media.
Since 2003, the global price of stainless steel raw materials has risen. In the domestic market, a type of "low-nickel" low-cost and economical stainless steel (containing 1.5-4.5% nickel Ni), austenitic stainless steel, has emerged. Its price is about 15% to 40% lower than that of 304 stainless steel, but its corrosion and rust resistance is relatively low. All products of Shenyeda are austenitic 304 or 316 stainless steel products.