4 5/16 Weld Nut Carbon Steel Grade 4.8 ASTM A193 Weld Hexagon Nut Zinc Plated

Product Description:

Constructed from SS316L stainless steel, this weld nut is designed for applications that require low carbon content to minimize the risk of carbide precipitation during welding, making it a reliable choice for high-corrosion environments. The sizes available are 7/16’’ and 1/2’’, which makes it suitable for a wide range of medium and heavy-duty applications, including in the chemical, pharmaceutical, and marine industries.

SS316L is a low-carbon version of SS316 stainless steel, offering excellent resistance to corrosion, particularly in chloride-rich environments such as seawater. This grade is widely used in industries that require the highest levels of corrosion resistance, making it an ideal choice for applications in harsh environments where the fasteners will be exposed to salt, chemicals, and high humidity.

The passivated finish adds an extra layer of protection to the weld nut, further enhancing its resistance to corrosion and ensuring that it remains durable and reliable over time. Passivation involves treating the metal with an acid solution to remove impurities and create a uniform oxide layer, which helps prevent rust and oxidation.

The combination of SS316L stainless steel and passivation ensures that this weld nut performs well in environments where high resistance to corrosion, extreme temperatures, and chemical exposure are essential. It also provides a clean, smooth finish that enhances its aesthetic appeal and makes it easier to clean and maintain.

Applications

Compared with carbon steel, stainless steel fasteners have the characteristics of high temperature resistance and corrosion resistance, stainless steel is also more widely used in our life, what are the advantages of stainless steel in the end?

The first point, high temperature resistance

Stainless steel fasteners high temperature resistance: it is because the hardness of the stainless steel fasteners itself is strong enough, after the production and processing of fasteners have a strong anti-oxidation ability, and it is also able to work properly at high temperatures, so it will not be subjected to high temperatures too much interference. If the stainless steel fasteners can be used after manufacturing at the same time before passivation, then its effect will become better.

The second point, the rate of electric Yin

Stainless steel fasteners electro-negative rate: the physical properties of stainless steel fasteners have a high electro-negative rate, so and carbon steel wire compared to stainless steel fasteners than its electro-negative rate is five times higher. After testing, we concluded that there is a coefficient of expansion in the fastener, if the temperature is higher, then the expansion coefficient of stainless steel fasteners will gradually increase with the temperature.

The third point, force capacity

Stainless steel fasteners stress capacity: for stainless steel fasteners, its stress capacity to carry the load is medium, even if it can not be comparable with high strength bolts, but the stress capacity of stainless steel fasteners can also meet the daily needs of people.

The fourth point, mechanical properties

Mechanical properties of stainless steel fasteners: in the mechanical properties, most of us have learnt that many of the mechanical properties of fasteners have a great relationship with the stainless steel wire. For example: will not rust, high corrosion resistance, etc., these are with the nature of the stainless steel material itself has a great relationship, with the continuous development of fasteners, these mechanical properties have become stronger.

High corrosion resistance: 316 stainless steel contains molybdenum, which can show better corrosion resistance in chloride environment, so it is widely used in marine, chemical, pharmaceutical and other fields. Good high temperature resistance: 316 stainless steel high temperature strength and oxidation resistance are better than 304 stainless steel, can maintain stable performance in high temperature environment. Good mechanical properties: 316 stainless steel has high strength, plasticity and toughness, suitable for manufacturing high-strength mechanical structures. Suitable for welding: 316 stainless steel has good welding performance and can be processed by various welding methods. Disadvantages: higher price: due to the presence of molybdenum and other precious metal elements, 316 stainless steel price is relatively high. Processing difficulty: 316 stainless steel hardness is relatively high, processing is more difficult, need to use higher cutting force and cutting speed. Higher environmental requirements: 316 stainless steel in the manufacturing process requires the use of higher purity gas and water, requiring a clean and dust-free production environment.

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