How to Tell the Quality of Stainless Steel Angle Bar

What is stainless steel angle bar

Angle bar is a long strip of steel with two sides perpendicular to each other in an angle shape. stainless steel angle bar is an angle bar made of stainless steel. It is mainly used for metal components and factory frames, etc. It has good weldability, plastic deformation performance and certain mechanical strength.

 How to identify the quality of stainless steel angle bar

There are many stainless steel angle bar products on the market, and the quality varies. There are indeed some counterfeit and shoddy products. Generally, they can be judged by the following aspects:

 1. Appearance difference

Stainless steel angle bar has formulated industry standards and clear regulations for appearance quality. The regulations cover stratification, scarring, cracks and other specific regulations. Secondly, the standards also focus on geometric shape deviations and make a series of regulations, such as curvature, edge width, edge thickness, vertex angle, and theoretical quality.

Through careful observation with the naked eye, supplemented by several conventional testing tools, and compared with the implementation standards, users can easily judge from the appearance whether the stainless steel angle bar products in their hands are standard qualified products. Qualified manufacturers have a more stringent quality inspection process when leaving the factory. The product can withstand inspection. At least there will not be too much deviation in appearance and size. Observing the appearance is a more effective primary inspection method.

For example, the surface of stainless steel angle bar materials 201 and 304, by observation, we can find that the color of 201 is slightly dull, while the surface of 304 material appears shiny. We can press the palm of our hand on the surface of the material, and after removing it, we can find that the one with a deeper handprint is 201, and the one with a lighter handprint is 304. However, this method requires experience summary and is suitable for those who have been in the industry for many years. Simple material judgment can prevent suppliers from selling inferior products as good ones to a certain extent and reduce losses.

2. Chemical composition identification

Qualified purchasers can use special chemical agents to analyze the composition of stainless steel angle bar, which is also one of the most scientific detection methods. From the perspective of chemical composition, stainless steel angle bar tends to be a general structural rolled steel series, and the detection indicators mainly include four inspection standards: C, MN, P, and S. At the same time, according to the characteristics of different grades, their chemical content also has certain differences, such as: C<0.22%, Mn: 0.30-0.65%, P<0.060%, S<0.060%. For these chemical components, we can detect them by comparing GB223, JISG1211-1215, BS1837 and other methods to ensure the quality of stainless steel angle bars.

In actual operation, the purchaser may not have the opportunity to conduct a comprehensive chemical analysis of the stainless steel angle bar to be purchased. A more common practice is to purchase conventional stainless steel material testing liquid to quickly and intuitively test the chemical reaction of stainless steel angle bars. For example, when a reagent is dropped onto the surface of a stainless steel angle bar, 201 turns dark brown and 304 turns red, and the properties of the material can be preliminarily judged. Of course, the specific chemical reaction still depends on the instructions of the reagent and cannot be generalized.

 3. Price estimation

As a purchaser of stainless steel angle bars, you must be fully familiar with and understand the variety classification and purchase price of stainless steel angle bar. Pay close attention to the market conditions of various types of steel. When the price of stainless steel angle bar provided by the supplier is significantly lower than the market average price, this is unreasonable in itself and there are certain doubts. Either the quality is poor, the material does not meet the standards, or it is a low-grade product produced by an informal manufacturer. If the price of the same type of steel varies greatly, you must carefully consider whether there are any quality problems.

 4. Judging from the integrity of traders

When purchasing personnel purchase stainless steel angle bar, especially when it involves large-scale purchases, they must understand the reputation and integrity of the suppliers in the purchasing place. Excellent suppliers pay great attention to details and services before and after sales, and care more about the reputation in the industry. Purchasers must compare prices from three suppliers and make careful judgments. If you are not sure about the qualifications and reputation of the supplier, you can also choose a third-party platform for purchase.

 5. Sign a rigorous angle bar transaction contract

In the transaction of stainless steel angle bar, regardless of the amount of purchase, a purchase contract with rigorous terms should be signed, indicating the steel type, quantity, material, time, delivery date, breach of contract liability, etc., agreeing on the rights and obligations of both parties, and establishing strict legal liability constraints on both parties. In this way, when quality problems occur, materials do not meet standards or other disputes, they can be prosecuted through negotiation or legal channels to minimize risks and losses.

If you need stainless steel angle bar, you can contact us-Juye Metal.

 Juye Metal, as a professional stainless steel supplier, has been committed to providing high-quality stainless steel products and excellent services. We possess a wide range of stainless steel materials in various grades and specifications, ensuring that we can meet the diverse needs of different industries such as construction, manufacturing, automotive, and food processing.

With a strict quality control system in place, every batch of stainless steel that leaves our factory is guaranteed to meet international quality standards. Our experienced team of professionals is always on standby to offer technical advice and support, guiding customers in choosing the most suitable stainless steel solutions for their specific projects. Moreover, we have established a reliable supply chain, ensuring timely delivery and competitive pricing. Whether it's a small-scale order or a large industrial project, Juye Metal is dedicated to building long-term partnerships with our clients and becoming their trusted source for all stainless steel requirements.