Customers often ask questions such as what steel is the best, which one is the most expensive, and whether a higher price means it is better. As for the best, the answer can be yes, but does that mean we should always buy the most expensive one? The answer is definitely no. As a wholesale mold steel supplier with more than ten years of full-processing service experience, MoldSteelLS first needs to understand what material the customer’s product is made of and what process is used. Before recommending steel to customers who are unfamiliar with steel materials. A clear understanding helps customers save costs and ensures the right steel is selected. We usually make recommendations based on the following four conditions.
What Process Is Used to Form the Product
First, it is necessary to understand what process the purchased steel will be used for. Common processes include die casting, stamping, forging, injection molding, compression molding, thermoforming, and blow molding. Once the process is identified, the mold steel grade can initially be determined.
What Material Is Used to Form the Product
1. For die casting, magnesium alloy, aluminum alloy, and zinc alloy each involve different mold impact pressures and precision requirements.
2. For plastics, such as injection molding, film blowing, and thermoforming, plastic mold steel used for injection molding typically requires higher mold standards because of precision requirements, the wide variety of materials, and even special engineering plastics. It is necessary to understand the plastic grade to recommend suitable mold steel. For example, some materials may cause greater mold wear, in which case steel with stronger wear resistance is required for the mold.
3. For forging and stamping, upper and lower dies are typically used, relying on gravity and compression for forming. These forming processes also have specific steel grades. It is not necessarily required to use expensive or top-grade materials; it is only necessary to meet the requirements of high hardness and good wear resistance.
4. For silicone & rubber mold steel used in silicone rubber compression molding, the upper and lower molds are closed, compressed, and heated for forming. For products with low precision requirements and limited production volume, the best steel is also not necessary.
How High the Product Precision Is
We typically ask what the dimensional tolerance requirements are, whether the surface finish requirements are high, and whether the product is an optical injection-molded part, a mirror-finish injection-molded part, or a medical test tube or syringe. By understanding this key information, steel can be screened according to its material properties. Of course, we also make recommendations based on the steels selected by previous customers who have manufactured similar products, because these choices have been verified in practice and are not just theoretical.
How Many Production Cycles the Mold Needs to Run
In simple terms, this refers to how many products the mold is expected to produce, such as 20,000, 100,000, or 300,000/500,000 pieces.
1. For low-volume production with low precision requirements, cost-effective and lower-priced options are recommended.
2. For low-volume production with high precision requirements, standard options are recommended, such as smaller steel brands with good cost performance.
3. For medium-volume production with low precision requirements, steels with average service life can be recommended.
4. For medium-volume production with high precision requirements, if the product has high added value, the best steel can be used, or niche brands from other countries can be selected as alternatives to major brands.
5. For high-volume production with low precision requirements, steel with strong wear resistance and long service life is recommended.
6. For high-volume, high-precision production, steel with higher composition purity, more uniform internal microstructure, better high-temperature stability, and longer service life is recommended. For example, for a service life of 500,000 cycles, the steel should be less prone to cracking and deformation.
