Year1
- 规格：
- 板棒线卷管齐全
- 硬度：
- 167-200
- 材质单：
- 随货配送
Stainless steel grade grouping
- (Related specifications of the American Society of Automation Engineers [3])
Series: Chromium-nickel-manganese austenitic stainless steel[][][][] [][]
Series 3: Chromium-nickel austenitic stainless steel [][][][]The model has good ductility and is used for molded products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 3 stainless steel, products such as: springs, steel structures, wheel covers.
The corrosion resistance of the model is the same as 3, but the strength is better due to the relatively higher carbon content.
Model: By adding a small amount of sulfur and phosphorus, it is easier to cut than 3.
The general model is stainless steel. Products such as: corrosion-resistant containers, tableware, furniture, railings, and medical equipment. The standard composition is chromium plus nickel. It is non-magnetic. When the impurity content is high, it will occasionally show weak magnetism after processing. This weak magnetism can only be eliminated by heat treatment. It is a stainless steel whose metallographic structure cannot be changed by heat treatment. []
Model 3: The same characteristics as 3, but it is low carbon so it is more corrosion-resistant and easier to heat treat, but has poor mechanical properties and is suitable for products that are welded and difficult to heat treat.
Model 3 has the same characteristics as 3. It is a nitrogen-containing stainless steel. Nitrogen is added to improve the strength of the steel.
Model 3 has better temperature resistance than model 3.
Model 3: Contains a large amount of chromium and nickel, so it has good heat resistance and oxidation resistance. Products such as: heat exchangers, boiler components, and jet engines.
Model 3: Contains the largest amount of chromium and nickel, so it has the best heat resistance and oxidation resistance for heat exchangers, boiler components, and electrical equipment.
After model 3, it is the second most widely used steel type, mainly used in the food industry and surgical equipment. The addition of molybdenum gives it a special structure that resists corrosion. Because it has better resistance to chloride corrosion than 3, it is also used as marine steel. 3 is usually used in nuclear fuel recovery devices. Grade / grade stainless steel is also generally qualified for this application grade. []Specially used in chemical, seaside and other corrosive environments, ship assembly, and building materials.
Model 3: Low carbon, so it is more corrosion-resistant and easy to heat treat. Products such as: chemical processing equipment, nuclear power generators, and refrigerant storage tanks.
Except that the addition of titanium reduces the risk of material weld corrosion, this model has similar properties to 3. It is suitable for welding brewing equipment, steam pipes, and aviation parts.
The model adds the stabilizing element niobium and is suitable for welding aircraft parts and chemical equipment.
Series: Ferritic and martensitic stainless steel [][][][] Model: Good heat resistance, weak corrosion resistance, of, of.
Model: In addition to the addition of titanium, the cheapest model (British and American) is usually used as a car exhaust pipe. It is a ferritic stainless steel (chromium steel), suitable for welding, and has a lower cost car exhaust pipe. ,oil equipment.
Model: martensite (high-strength chromium steel), with good wear resistance and poor corrosion resistance, suitable for pumps. Its chemical composition contains 3 chromium, carbon and a small amount of other element alloys. The raw materials are cheap, magnetic, and can be hardened by heat treatment. General uses include bearings, medical equipment and knives, etc.
Model: The addition of sulfur improves the processing properties of the material.
Model: Containing higher carbon, higher hardness and strength, cutting edge martensitic stainless steel, similar to the earliest stainless steel such as Brinell high chromium steel (Brr', British metallurgist rBrr), which can be made very Bright, suitable for knives, springs, surgical instruments, razor cutting heads, valves.
Model ferritic stainless steel, decorative, magnetic, for example used in car accessories. Good formability, but poor temperature resistance and corrosion resistance, suitable for fasteners, tableware, and furniture items. Its standard chemical composition is chromium and has low carbon content. This type of stainless steel is magnetic.
The model contains molybdenum, so its corrosion resistance is better than 3. It is suitable for tableware, wipers, and car decoration.
Model: High-strength cutting tool steel, with slightly higher carbon content. After appropriate heat treatment, it can obtain a higher yield strength and a hardness of up to 100%. It is among the hardest stainless steels. The most common application example is razor blades. There are three commonly used models:, B, and (easy-to-process type).
Series: Heat-resistant chromium alloy steel. [][][]
Series: martensitic precipitation hardening stainless steel. [][][] Model The most commonly used precipitation hardened stainless steel model, usually also called -,.
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