Stainless steel is increasingly becoming a commonly used material in both civil and industrial fields, thanks to its shiny and clean appearance. However, some users notice that stainless steel items in their homes or companies begin to become yellow after a period of use. The main reason is because those products are made from plated stainless steel. So how to choose quality stainless steel? Below are four ways to distinguish good stainless steel from plated stainless steel, please refer to.
Nội dung chính
- 1 Explore stainless steel materials
- 2 Characteristics of good, genuine stainless steel
- 3 Distinguishing good stainless steel by its color
- 4 Distinguish good stainless steel through magnets
- 5 Distinguishing good stainless steel based on acid or specialized testing products
- 6 Distinguishing good stainless steel by machinery
- 7 Tips for choosing to buy quality stainless steel products
Explore stainless steel materials
Stainless steel not only exists in one form but also has many different types, suitable for a variety of usage environments. For example, stainless steel 304 and 201 are often popular in the production of household cleaning products.
Conversely, for cooking applications, 304 stainless steel is often used; Meanwhile, stainless steel 420 is chosen to make knives, spoons, and forks with high hardness and abrasion resistance, stainless steel 316 has acid-resistant and chemical-resistant properties, and stainless steel 430 has reasonable and suitable prices. For items that have little contact with water.
According to experts, in Vietnam, stainless steel is mainly used to produce household appliances of two popular types: 304 and 430. Stainless steel from type 430 has a lower price and is less durable, susceptible to corrosion. corrosive, while type 304 has high durability and higher price. According to experts, distinguishing between good stainless steel will help maintain the product’s long-term durability, while low-quality stainless steel products are often susceptible to corrosion.
Stainless steel plate material
Characteristics of good, genuine stainless steel
Good, high-quality stainless steel has outstanding characteristics:
Durable in many different environmental conditions.
- Not oxidized under the influence of water, fire and the environment.
- Always maintain shine and smoothness.
- Does not contain ingredients and chemicals harmful to human health, ensuring safe use.
- Distinguishing good stainless steel by its color
Distinguishing good stainless steel by its color
Through the brightness of the material, we can distinguish between good stainless steel and plated stainless steel. Usually, plated stainless steel is made from steel or corrugated iron coated on the outside with a thin layer of copper, nickel and chrome. The appearance of plated stainless steel has a glossy shine. However, just a small scratch is enough to reveal the steel inside. Quality stainless steel products have a clear shine. If you pay a little attention, you may notice that plated stainless steel is often a bit heavier than “genuine” stainless steel because plated stainless steel is mainly made from steel.
Distinguishing good stainless steel by its color
Distinguish good stainless steel through magnets
Another common way to distinguish good stainless steel from plated stainless steel is to use magnets. Depending on the composition of quality stainless steel, the magnet may not attract or attract slightly; When pulling it out, you only need to use a light force. For plated stainless steel, the magnet will attract more strongly. In some cases, just bring it close and you can hear a “click” sound when the magnet is tightly attached to the stainless steel bar.
Distinguishing good stainless steel based on acid or specialized testing products
If you cannot distinguish good stainless steel by color or do not have a magnet, there is another method that can be used, which is to use 70 degree hot acid or specialized testing products available on the market. When you drop a drop of acid or test product into the stainless steel after about 10-15 seconds, you will get results. Chrome-plated stainless steel will become black and chemically corroded, while good quality stainless steel will hardly react.
Distinguishing good stainless steel by machinery
Nowadays, with increasingly sophisticated stainless steel manufacturing technology, it is sometimes difficult to distinguish between good quality stainless steel and plated stainless steel through the above 3 ways. At that time, you need to use a specialized material analyzer. Good quality stainless steel usually contains 18% chrome, 8% nickel and the rest is iron and other components. Therefore, a composition analyzer is the most accurate way to distinguish between standard stainless steel and plated stainless steel.
Distinguishing good stainless steel by machinery
Tips for choosing to buy quality stainless steel products
– Distinguish good stainless steel by using a magnet to check; If the magnet is tight, the product may contain a lot of iron, reducing its quality and easily rusting.
– Prioritize choosing products with manufacturer’s stamps and labels and accompanied by a warranty card.
– For stainless steel used in cooking, choose the type with symbol 304; For stainless steel not used for cooking, choose type 430. When buying, ask the salesperson to introduce the exact type.
– Prioritize products with 2 – 3 layers and a thick bottom when you snap your fingers without any resonance; On the contrary, thin products often create a resonant sound at the bottom.
– Choose a product that is molded in one piece, without any seams or seams. “Spot welded” stainless steel products can leave burn marks and form dots at the handle or seam junction.
Today’s plated stainless steel is made very similar to quality stainless steel, so you need a way to distinguish good stainless steel from plated stainless steel. If possible, you should distinguish mechanically. If you can’t afford it, choose the remaining ways to differentiate and remember to buy from reputable places that are highly appreciated by customers. To buy quality stainless steel products that meet the right requirements, directly observe the working process and choose materials before the production process at Inox Hoa Giang. Please contact us immediately via hotline to receive a quote for the production or processing of stainless steel products.
Contact Hwayang Metal Industrial Corp
Hotline: 028.38485518
Email: support@inoxhoagiang.com
