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Stainless Steel Bar Basic Characteristics
Jiangsu Sheye Metal Co.,Ltd | Updated: Jul 24, 2017

Stainless Steel Bar Basic characteristics

Stainless steel is short of stainless steel and acid resistant steel. In the field of metallurgy and materials science, according to the main performance characteristics of steel, will contain more than 10.5% chromium content, and corrosion resistance and stainless steel as the main performance of a series of iron-based alloy called stainless steel. Usually in the atmosphere, water vapor and fresh water and other corrosive medium in the stainless steel and corrosion-resistant steel known as stainless steel; in acid, alkali, salt and other corrosive environment with corrosion resistance of the steel Called acid resistant steel. The differences in the composition of the two steels lead to their different corrosion resistance, the former alloying degree is low, generally not acid; the latter a high degree of alloying, both acidic and has a rust.

    Definition of stainless steel: iron-based alloy with a chromium content of 10.5% or more is called stainless steel.

    The most basic characteristic of stainless steel is its resistance to rust in atmospheric conditions and corrosion resistance in a variety of liquid media.

    This property is directly related to the chromium content in the steel and is enhanced with the increase of the chromium content. When the chromium content of 10.5% or more when the characteristics of steel mutations, from easy to rust to rust, never corrosion to corrosion. And the chromium content from 10.5% later with the continuous improvement of chromium content, its resistance to rust and corrosion resistance has also been improved. General stainless steel has a maximum chromium content of 26% and a higher chromium content is no longer necessary. Recently, on the Indonesian banning pass the rumors of the rumors of the uproar, but always in the "clouds in the white gauze" not see its true face, the industry stressed that the operation of the market suspects great, nickel prices remain stable after the break There is a large space. Analysts said that the end of May to early June, nickel prices are still the opportunity to rush to the technical resistance of 23,000 US dollars / ton, below the support level is still 18,500 US dollars / ton.

    Steel mill collective price, as the steel industry veteran, TISCO stainless steel sheet futures prices released, 304 trimming cold reported 19900 yuan / ton, 304 hot-rolled 3.0-12.0mm reported 18900 yuan / ton, plate 16- 20mm reported 20700 yuan / ton, compared with last month has 2300-3000 yuan / ton up, strong market guidance, is bound to lead the latter part of the stainless steel market offer a new round of "high tide", but it is worth noting that many businesses This is relatively cautious, pull up the impulse is clearly convergence, and more think twice.

Stainless steel according to the brand is divided into "300" series and "400" series, varieties can be divided into austenite, ferrite and martensite "three categories.

Martensitic stainless steel due to its solid structure as a knife and fork type of choice of tableware, relatively strong corrosion resistance of austenitic stainless steel for other stainless steel cutlery. In the gb test, taking into account the different characteristics of stainless steel, the detection element is also different, the weak corrosion resistance, martensitic stainless steel saves chromium to test.

Why stainless steel will rust, rusty stainless steel safe?

Stainless steel will rust. In the course of the experimental staff, the test will use acetic acid solution soaked stainless steel products, all stainless steel rust can be divided into two kinds, one is the sample after washing dry, the surface of the white plaque spot, this situation is more, about three One of the samples; the other is the surface of the stainless steel process, soaked in black or red and black and black lines or rust, rust and soak the small or large amount of dark precipitate.


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