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Teach you how to understand the stainless steel parameters
Stainless steel profile
Stainless steel is a modern material with 60 years of development.
Since the invention of stainless steel in the early of this century, stainless steel has been the reputation of the modern material and the architectural application of the outstanding reputation set in a suit, the envy of its competitors.
Only to the correct choice of steel, processing and proper maintenance of appropriate stainless steel will not cause corrosion, pitting, corrosion or wear. Stainless steel or building materials with one of the highest strength of metal materials. Since stainless steel has good corrosion resistance, it can cause structural parts to permanently keep the integrity of engineering design. Chromium stainless steel is set high mechanical strength and extensibility in a body, easy manufacturing and processing of parts, can meet the needs of architects and structural designers.
In the industry of buildings, buildings and structures, the key to the success of stainless steel is its corrosion resistance..
Stainless steel grades grouping
200 series - chromium - nickel - manganese austenitic stainless steel
300 series - chromium - nickel austenitic stainless steel
Model 301 - ductility, for forming products. Can also be quickly hardened through mechanical processing. Good welding. The wear resistance and fatigue strength are better than 304 stainless steel.
Type 302 - 304 with corrosion resistance, due to the relatively high carbon intensity.
Model 303 - making it easier to cut and process by adding a small amount of sulfur and phosphorus to 304.
Model 304 - general type; 18/8 stainless steel. GB grades of 0Cr18Ni9.
Model 309 - 304 of the better temperature resistance.
No. 316 - following the 304, the second most widely used of steel, mainly for the food industry and surgical equipment, adding Mo to obtain a special corrosion resistant structure. Because of the 304 it has better anti chloride corrosion ability and therefore also for "ship steel" to use. SS316 is usually used for nuclear fuel recovery devices. Grade 18/10 stainless steel is also in line with this application level. [1]
Model 321 - except that the titanium element reduces the risk of corrosion of the weld metal outside the other properties similar to the other 304.
400 series - ferrite and martensitic stainless steel
Model 408 - good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
Model 409 - the cheapest model (Ying Mei), often used as a car exhaust pipe, ferritic stainless steel (Ge Gang).
410 types of martensite (high strength steel), good wear resistance, corrosion resistance is poor.
Model 416 - added sulfur to improve the processing performance of the material.
Type 420 - "cutting class" martensitic steel, similar to Brandt’s first high chromium stainless steel this. Also used in surgical tools, can do very bright.
Model 430 - ferritic stainless steel, decorative, for example, for automotive accessories. Good formability, but the temperature resistance and corrosion resistance of the poor.
The model 440 - high strength steel cutting tools, including carbon is a little bit higher, after appropriate heat treatment can obtain a higher yield strength, hardness can reach 58 HRC, which belongs to the hard stainless steel column. The most common example is the razor blade. ". There are three commonly used models: 440A, 440C, 440B, and 440F (easy processing)..
500 series - heat resistant chromium alloy steel.
600 series - Martensite Precipitation Hardening Stainless steel.
Model 630 - the most commonly used precipitation hardening stainless steel type, usually called 17-4; 17%Cr, 4%Ni.
Product shape
In real time, stainless steel is made of all the metal shapes and sizes, and has many special shapes.. The most common products are made of thin plate and strip, and special products of medium plate production, for example, hot rolled structural steel and extruded structural steel. And there are round, oval, square, rectangular and six angle welded pipe or seamless steel tube and other forms of products, including profile, bar, wire rod and casting.
Surface state
As it will be said, in order to meet the requirements of the architects aesthetics, a variety of commercial surface processing has been developed.. For example, the surface can be highly reflective or dull; can be smooth, polished or embossed; can be coloring, color, electroplating or pattern etched on the surface of the stainless steel, to meet the designers on the appearance of the various requirements.
It’s easy to keep the surface state.. Remove dust from the occasional flushing. As a good corrosion resistance, it can easily remove graffiti surface contamination or other similar surface contamination.
Stainless steel set performance, appearance and use of the characteristics of a body, so stainless steel will remain the world’s best one of the building materials.Catalog printing Booklet printing