The brass inserts have high thermal conductivity, and the high thermal conductivity indicates a faster heating rate. This heating rate helps fast and easy insertion into plastic parts.
Brass allows easier manufacturing of stainless steel, and hence it lowers the manufacturing costs and is highly preferred for making threaded brass inserts.
The soft materials or plastic products depend on threaded metal inserts to protect reinforced joints and secure fasteners. In some applications, stainless steel is appropriate. Brass pipe fittings manufacturers offer significant cost benefits and satisfy the majority of the performance.
Raw materials costs for stainless steel and brass are the Same. There is a significant increase in the cost of machining stainless steel. To maintain a quality surface finish, materials may be cut while indicating the comparative speeds of machinability ratings.
The materials having efficiency ratings have similar compositions to machinability ratings, and thus, generalities can be made. There can be only free machining stainless steel for 40% to 50% machine brass.
This efficiency also reduces the temperature of machine operations. Brass scrap that we get from machining is sold with a minimal value loss. This loss is compared to the incoming rod cost. The initial value of stainless steel is retained in controversy. This sustenance reduces the efficiency overall.
It uses several methods to install machine inserts. The most common method used is post-mold heat installation. There are several ways to heat machine inserts. The first way to heat is to directly charge the heated tips or chimneys or indirectly charge with ultrasonic energy. Or sometimes, the method needs the brass inserts to reach an approximate temperature equivalent to the plastic’s melting point.
Stainless steel or carbon Steel has better thermal conductivity when compared to brass. Brass is very much conductive, like twice as much as carbon steel and 15 times more conductive when compared to austenitic stainless steel. This thermal conductance of brass allows rapid heating and cooling while installing products in thermoplastics, and it also improves the cycle time.
More intelligence of heat rapidly improves the positional accuracy of machine inserts. The rapid cooling method avoids a condition commonly called afloat. This type of condition happens when the machine inserts remain hot even after the tips or ultrasonic horn has been removed. The rapid cooling sets the plastic quickly and fixes the position of the insert. This condition maintains accuracy in installation depth parallelism.
Our specially developed lead-free brass alloy slightly modifies the lead content. The other properties of brass you expect from brass are the same.
Brass
Brass gives us more advantages than stainless steel, and hence it is preferred for use in many industrial and agricultural applications. But there are few instances where stainless steel can be required. Let’s take the example of brass and stainless steel. If they have various corrosive agents, then they would surely react in different manners.
You need to Save your water and other products from contamination. It reduces the quantity of lead in fittings, faucets, and valves with low-lead brass products.
Let’s see a few advantages and limitations of each material.
● For example, brass is an excellent portable water carrier for hot and cold water for residential or industrial systems.
● Brass suits the most for usage in Marine environments which includes brackish water and seawater with moderate currents.
● The brass avoids exposure for a higher velocity current.
● The brass materials that expose to Marine atmospheres develop a layer called protective green patina.
● Brass is a good performer in cryogenic applications.
● This performance of brass makes an alternative to 300 series stainless steel in a few environments.
● Brass handles mild exposure to alkaline solutions avoiding heavy solutions like cyanides and hydroxides.
● They also resist corrosion in non-oxidizing acids avoiding oxidizing acids.
● Brass provides excellent resistance to corrosion to petroleum products.
● Brass possesses the excellent strength and tensile strength of low carbon Steel.
● If designers want to make the threaded part stronger, it is more than enough for an adequate thread length, which prevents the high cost of stainless steel.
● The product is plated with nickel to avoid or reduce tarnishing and corrosion or provide a simple silver finish.
● Products with a nickel finish provide a hard surface on products such as bearings, plumbing fixtures, and gears.
Stainless steel
There are many varieties available for stainless steel. For insertion, the most commonly used stainless steels are 300 series or austenitic stainless steel. The stainless-steel property changes from one Android to another or from one family to the next. Still, it creates tension while providing general statements regarding performance.
It is best to consult application engineers while considering the insert manufacturing of stainless steel or other materials.
The Advantages of stainless steel
● There are specific grades in brass, such as 316 brass grades are superior; the Marine environment uses more aggressive brass for fast-moving currents, but You can’t apply this to all the grades of brass.
● While comparing a series of 300 sheets of steel, the most common turning stainless and free machining 303 Steel has more sulfur, improving machinability. The addition of sulfur will decrease the corrosion-resistant factor in seawater.
● It is excellently resistant to petroleum and many acid products.
● It passivates either in citric acid or nitric acid solutions but avoids hydrochloric acids.
● The comparison between stainless steel and brass depends on grade and alloys, but it is typically stronger than brass.
● FDA approved specific grades of austenitic stainless steel such as 304 302 and 316 for food contact. For food and beverage applications, stainless steel is a good choice.
● A grade of 303 stainless steel does not approve for use in contact with food.
● Austenitic stainless steel offers a higher service temperature when compared to brass. The vital point to note here, the offer is limited only, but the heat deflection temperature of the plastic component is the limiting factor.
Conclusion
Thus, this article shows the importance of threaded brass inserts and stainless-steel inserts. Both have their properties and vary according to the grades of metals. The conductivity of metal plays a vital role in the insertion.
