M10 M16 wire thread insert SUS304 SUS316 Alloy for Automotive Mechanical Industrial Use
Product Description:
A wire thread insert (also known as a helical thread insert or coil insert) is a mechanical component used to repair or reinforce damaged or worn threaded holes. It is typically made from high-strength stainless steel wire and features a coiled design that restores or strengthens the original threads, ensuring that bolts, screws, or other fasteners can be securely fastened. Well-known brands of these inserts include Heli-Coil and Time-Sert.
Key Functions:
1. Thread Repair: When a threaded hole becomes stripped or damaged, a wire thread insert can be inserted to recreate the original threads, allowing the use of standard fasteners without the need to replace the entire part.
2. Strengthening Threads: In softer materials, such as aluminum or plastics, a wire thread insert can provide additional support to the threads, improving their load-bearing capacity.
3. Preventing Thread Damage: In high-stress applications, wire inserts help distribute loads more evenly, reducing the likelihood of thread stripping or loosening.
4. Corrosion Resistance: Inserts made from corrosion-resistant materials like stainless steel or other alloys offer increased protection against rust and wear, especially in harsh environments.
Applications:
• Aerospace: Used extensively in the repair and assembly of aircraft and spacecraft components, where high precision and strength are required.
• Automotive: Common in engine blocks, chassis, and transmission systems to repair or reinforce damaged threads in soft metals like aluminum.
• Manufacturing: Used in heavy machinery and equipment to restore or enhance threaded connections, particularly during repair and maintenance.
• Electronics: Used in high-precision electronics to ensure reliable and secure fastening in devices with small or delicate components.
In summary, wire thread inserts are widely used wherever thread repair or reinforcement is needed, offering a cost-effective and reliable solution to maintain the integrity of threaded connections in various industries.
Stainless Steel Applications in Modern Industries
Stainless steel is an alloy of iron with a minimum of 10.5% chromium content, offering superior corrosion resistance, strength, and durability. Due to these properties, stainless steel has a wide range of applications in various industries. Below are some key uses:
1. Construction and Architecture
Stainless steel is commonly used in the construction industry for structural components, exterior facades, and decorative elements. Its resistance to rust and staining makes it ideal for buildings exposed to harsh weather conditions. For example, stainless steel is often used in the frames of windows, handrails, roofing, and cladding of tall buildings, such as skyscrapers. Landmarks like the Eiffel Tower and St. Paul’s Cathedral incorporate stainless steel for both structural integrity and aesthetic appeal.
Moreover, stainless steel is also used in public infrastructure, such as bridges and tunnels, especially in coastal regions or places with high humidity, where the material’s resistance to corrosion helps increase the longevity of the structures.
Steel types:
| No. | C% | Cr% | Ni % | Mo % |
| 304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 301 | 0.15 | 16.0-18.1 | 6-8 | / |
| 310 | 0.08 | 24-26 | 19-22 | / |
| 304L | 0.03 | 18-20 | 8-12 | / |
| 316L | 0.03 | 16-18 | 10-14 | 2-3 |
| 321 | 0.08 | 17-19 | 9-12 | / |
201, 304, 316 are austenitic stainless steel, according to the performance of the non-magnetic, some of the performance of the weak magnetic because of the smelting of the composition of the segregation or improper heat treatment leads to the austenite in a small amount of martensite or ferrite. Austenitic stainless steel corrosion resistance comes from the formation of chromium oxide protective layer on the metal surface. When the material temperature is heated to 450 degrees -900 degrees, the structure changes, will form chromium carbide along the edge of the crystal and can not form a protective layer of chromium oxide, thus reducing the corrosion resistance, this is also known as ‘intergranular corrosion’. As a result, there are 304L and 316L, the two due to the low carbon content also reduces the intergranular corrosion. In particular, the higher susceptibility to intergranular corrosion does not mean that non-low carbon content is more susceptible to corrosion, in a highly chlorinated environment, this susceptibility is also higher.
304 stainless steel
304 is a general-purpose stainless steel that is widely used to make equipment and machine parts that require good all-round performance (corrosion resistance and formability). In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 18% chromium, more than 8% nickel content. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard.
A2 stainless steel and A4 stainless steel, A2 is a class of 304 stainless steel, A4 is a class of 316 stainless steel, the main difference between the two is here, some of the fastener industry will be 302HQ and 304 referred to as: A2, 316 and 316L (C content of carbon C is less than 03% of the stainless steel, you can increase the ‘L’ logo) called A4.
What is the difference between a270 and a470 stainless steel bolts Nuts are usually used in conjunction with bolts. Hexagonal nuts are more widely used.C-grade hexagonal nuts are used in steel structures, machinery and equipment with rough surfaces and low requirements for precision.A-grade and B-grade hexagonal nuts are mainly used in machinery and equipment with smooth surfaces and high requirements for precision.
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