When it comes to steel products, 310 is the steel grade that offers the highest resistance in environments where heat and temperature are extremely high. The chromium and nickel alloy that makes up the components of 310 quality stainless steel ensures that this steel has corrosion resistance even in extremely high temperature environments. 310 quality stainless steel, which has a very high heat resistance, has a structure suitable for continuous use even under 1100 degree temperature conditions and is used without rusting.
There are a total of 3 different types of 310 model products, which are internationally preferred in high temperature conditions. The difference between these steels, which are known by different names as 310, 310 S and 310 H, is the carbon ratio in their content. 310 stainless steel carbon content is below 0.25%, 310 S stainless steel carbon content is below 0.08% and 310 H stainless steel carbon content is between 0.04% and 0.1%.
As the carbon content of these steels in the 310 group, which are separated from each other by carbon content, increases, corrosion resistance weakens and carbide appearance increases during welding.
When the amount of carbon in the material starts to increase, the material's resistance to corrosion also decreases. In addition, the opportunity offered by the material for welding is also reduced.
The production purpose of 310 quality stainless steel material is to continue working at high temperatures without losing efficiency and deformation. It is a material that can withstand working conditions even if the operating temperature rises up to 1100 degrees.
In this way, the production and efficiency of steel material with high temperature resistance depends on the homogeneous distribution of the composition of the steel. Insufficient homogeneity also weakens corrosion resistance. In this respect, sufficient performance may not be obtained from the temperature resistance of 310 model steel that is not produced carefully and homogeneously.
Corrosion Resistance (* * * * *)
It is seen that 310 quality stainless steel, which has a very strong characteristic in terms of temperature, maintains its corrosion resistance even at high temperatures. The highest temperature at which this steel material can continue to work without corrosion is determined as 1100 degrees.
Mechanical Properties (* * *)
310 grade stainless steel, which has high resistance to hot working conditions, continues to maintain its mechanical properties up to 1100 degrees.
Malleability (* * *)
310 grade stainless steel is slightly below average in terms of forgeability, although it is not very suitable for shaping, it is easy to forge if sufficient softening is applied.
Weldability Feature (* * * *)
In terms of weldability, grade 310 stainless steel has good corrosion resistance. In order to provide the best weldability standards, 310 H containing the lowest carbon content can be preferred.
Machinability (*)
310 quality stainless steel needs to benefit from softening techniques in order to be processed.
310 grade stainless steel is a material especially suitable for environments where operations are carried out under extremely high temperature conditions. Chemical, machinery industry are the areas that most frequently prefer 310 quality steel in this field. It is also used in the glass industry and various apparatus. One of the areas where stainless steel of this quality is also widely used is mines, furnaces and furnaces.
In addition, the fact that aluminum and bronze molds are made of 310 quality stainless steel allows the process to be carried out without the possibility of corrosion in working conditions. At this point, a special information conveyed to those who will benefit from 310 quality stainless steel is that the temperature of 1100 degrees should not exceed in the working environment.
Above this level, the corrosion resistance of the steel will no longer be sufficient. In addition, if possible, working below 1100 degrees will benefit the process to be safer. For example, it can resist up to a maximum of 750 degrees in sulfur-reduced environments.
310 model's resistance to temperatures under different conditions in use can be summarized as follows:
-Oxidizing Atmosphere: ~1100°C
-Sulfur Oxidation: ~1000°C
-Cementation Reduction: ~1000°C
-Sulfur Reduction: ~750°C
It is recommended not to exceed 1100°C in any conditions involving 310 model materials. 1100°C is the endurance limit of the products and must be activated at temperatures that will not reach the limit. The temperature resistance capacity of the material may vary depending on the environment in which it is located and the process performed on the surface of the material.
310 Quality Stainless Steel Material List (Immediate Delivery from Stock)
Stainless Steel Rod: Min Diameter: 6mm -Max Diameter:100mm
Chemical Composition Quality: 310 (1.4845)
C: 0.08% Max
P: 0.045% Max
S: 0.03% Max
Mn: 2.0% Max
Si: 0.75% Max
Cr: %25
Ni: 20.5
Mo: 0.75
Mechanical Properties at Room Temperature
Summary of Quality Characteristics
Model 310 is coded as 1.4845 stainless in EN standards. 310 model product is also coded as X8CrNi25-21 in EN standards. In this case, the product quality is the preferred and frequently preferred steel products quality in high temperature conditions. Our company's 310 quality steel material has an average of 0.060% C carbon content, but it contains the amount required for all three 310, 310S and 310H products. The 1.4845 (310) model materials produced in our company's Ugitech factory offer a quality corrosion resistance even under 1100°C temperature conditions.
Stainless steels of this quality do not attract magnets and show high resistance to corrosion.
310 Grade Stainless Steel Alternatives
In which cases can you choose these products instead of 310 stainless?
309 (1.4828) - 309S (1.4833): In environments where temperature conditions are not very high, 309 or 309S grade stainless steel, which has lower cost and lower temperature limit resistance than 310 grade, can be used.
310S (1.4845): 310S is the low carbon version of grade 310 stainless steel and has a higher corrosion resistance than 310 in this respect. Our company's 310 grade stainless steels provide you with the carbon that is ideal to be found in 310 S grade stainless steel.
310H (1.4845): The carbon content of this quality steel material is between 0.04% and 0.1%. Due to its lower carbon content, its corrosion resistance is high and the carbon amount of 310 quality material offered by our company is between the carbon limits that 310 H quality stainless steel should contain.
314 (1.4841): Although 314 grade stainless steel is not an easily available product, it has a slightly higher resistance in hot conditions compared to 310 grade material. It is not as common as 310 in terms of use and availability.
310 quality is also a very high temperature steel like 309 and 309S quality and does not form scale in any way up to an average of 1000 to 1100 degrees Celsius. Therefore, the tensile strength level of this product is also very high.
This product, which has very good corrosion resistance against nitrogenous gases, has little corrosion resistance against sulfurous gases. Compared to 310 quality stainless steels, it has less weldability against gases. Since it has a low resistant corrosion effect, it would be better to prefer other welding methods by not applying welding with 309S because it is in 309 quality.
Areas of use are also an option that will come after 309S and 309 grades in heat-resistant applications. It is used in apparatus manufacturing under mechanical stress, heater hangers, annealing and melting, heat exchangers, oil plants, steam boilers and furnace constructions. Let's take a look at the quality ratio between 309S and 309 quality and this product. The amount of chromium in 309S and 309 is 23 - 25% on average.
The amount of nickel is around 13% - 15%. These amounts provide a high level of protection against scale formation and corrosion, making the strength against friction and rupture even higher. The products available in the market are available in sheet, profile, rod and pipe norms.
