Special Grades

Special Stainless Grades

• 1.4122 Stainless Steel: 1.4122 stainless steel is a stainless steel quality that can be heat treated and usually pre-hardened, which belongs to the group of martensitic stainless steels. It has a good breaking strength as it is pre-heat treated. The corrosion resistance of this quality material is not very high.

• 1.4435 (316L) Stainless Steel: 1.4435 stainless steel is a version of 316L grade stainless steel, but the commonly used and known 316L grade material is 1.4404 stainless steel. This version of the 316L grade contains higher nickel and molybdenum, and thus its corrosion resistance is much higher than the normal 316L grade.

• 1.4439 (317LMN) Stainless Steel: 1.4439 stainless steel, also shown as 317LMN. This quality stainless has a very high corrosion resistance. Where higher corrosion resistance is required, grades such as 904L can be preferred.

• 1.4529 (UNS S31254) Stainless Steel: 1.4529 stainless steel is also called Alloy 926. The corrosion resistance of this stainless steel quality, which has very good corrosion resistance, is even higher than that of 904L quality material.

• 347 (1.4550) Stainless Steel: 1.4550 stainless steel is a stainless steel quality that can withstand temperatures between 400 and 800 degrees. This material, which shows slightly better corrosion resistance than 304 quality at low temperatures, can also show slightly better corrosion resistance than 321 quality at high temperatures.

• 1.4713 Stainless Steel: 1.4713 stainless steel is a stainless steel quality that falls under the ferretic stainless class. The most important feature of this stainless steel is that it can withstand temperatures up to 800 degrees. This material has a low corrosion resistance. However, when the corrosion resistance of this material is evaluated at high temperatures, it can perform well at those temperatures.

• 1.4742 Stainless Steel: 1.4742 stainless steel is in the ferretic stainless class. This stainless steel contains more aluminum and silicon than 1.4713 grade. In this way, this quality material can withstand high temperatures up to 1000 degrees.

• 446 (1.4762) Stainless Steel: 1.4762 stainless steel is also known as 446 stainless steel. This quality material, which is included in the ferretic stainless group, can withstand very high temperatures such as 1100 degrees. It has a good corrosion resistance, especially at high temperatures.

• 1.4876 (Incoloy 800) Stainless Steel: 1.4876 stainless steel is shown as Alloy 800 or Incoloy 800. This quality material, which is included in the group of stainless steel and also Nickel Alloy, can withstand highly corrosive environments. It can operate at temperatures up to about 800 degrees. The most important feature of this material is that it can withstand both high temperatures and extremely corrosive environments.

• 1.4923 Stainless Steel: 1.4923 stainless steel is a material that falls into the martensitic stainless group. This quality material is produced with pre-heat treatment. This material, which has good mechanical strength, has better corrosion resistance than many other martensitic stainless steels.

• 1.4441 (316LVM) Stainless Steel: 1.4441 stainless steel is a special version of 316L (1.4404) quality material, which is in the austenitic group, purified and completely produced for use in medical products, with a higher alloy.

• Custom 455 Stainless Steel: Custom 455 material, also known as Custom 455 stainless steel (MX 455), is a type of material that has a very high mechanical strength and can be hardened by aging. This quality material can get a hardness of approximately 45 HRC and above with aging..

• 1.4005 (416) Stainless Steel: 416 quality stainless steel is an easily processed stainless steel grade with added sulfur. Thanks to the sulfur it contains, the chips are easily broken during processing and this makes processing easier. 416 grade stainless steel is shown as X12CrS13 and UNS S41600. This material can be hardened by heat treatment, but its hardenability is not that high compared to grades such as 420 or 440M. The corrosion resistance of 416 quality material is not high and should not be preferred in corrosive environments. It belongs to AISI 416 quality martensitic stainless steels group.

• 1.4104 Stainless Steel: 1.4104 stainless steel material is a sulphur-containing stainless steel quality. It can be thought of as a sulfur-added version of 430 quality, ie 1.4016 quality material. 1.4104 grade material is also quite similar to 430F grade. Due to this similarity, 1.4104 quality is called 430F quality in many sources. The truth is that grade 430F (1.4105) and grade 1.4104 are two different stainless steel grades. There is less carbon in 430F quality material and therefore 430F quality material cannot be heat treated. 1.4104 grade contains higher carbon compared to 430F grade and therefore 1.4104 grade can take a little heat treatment. 1.4104 quality material is a stainless quality that can be processed very easily thanks to the sulfur it contains. On the other hand, the sulfur it contains reduces the corrosion resistance of 1.4104 grade and the corrosion resistance of 1.4104 grade is lower than 430 (1.4016) grade.

• 440M (1.4116N) Stainless Steel: 440M (1.4116N) stainless steel is a material developed by the French Ugitech factory. This material, which is of international French origin, is a special stainless steel material that has been developed in different ways among its counterparts. Generally speaking, 440 M stainless steel; It is defined as the advanced version of 440 B (1.4112) and 440 C (1.4125) grade stainless steels. 440 M (1.4116N) stainless steel, which shows higher performance in terms of corrosion resistance and machinability compared to these similar ones, is also famous for reaching a very high hardness level after heat treatment. At the heart of the development of the 440 M (1.4116N) are 440 A (1.4112) and 440 C (1.4125) grade materials. 440 M (1.4116N) developed by the French Ugitech factory; It is formed by adding Nitrogen (Nitrogen) to the content of 440 A (1.4112) and 440 C (1.4125) quality materials. In case of heat treatment after forging, the material, which can gain a hardness of approximately 57-60 HRC, shows similar properties to 420 (1.4034) quality stainless steel in terms of machinability in terms of its general structure.

• 1.4125 (440C) Stainless Steel: It is the highest carbon and chromium member of the stainless steels family. Due to its high carbon content, it provides corrosion resistance as well as high mechanical strength values after heat treatment.The quality of steel can be understood by comparing its mechanical properties. These properties are tensile strength (19685 kg/cm2), flexural strength (18965 kg/cm2), slip resistance (3% at 5 cm), compression, impact resistance (2.8 cm2gm) and hardness 58 RHC (in Rockwell units). . The presence and amount of Molybdenium and Vanadium make the material top-notch. Molybdenium provides homogeneous hardness from the face to the middle of the steel. In addition, it makes the steel resistant to corrosion, higher tensile and compressive stresses, higher temperatures and hardens the steel. On the other hand, Vanadium increases the tensile strength as it accelerates the formation of carbide.

• 1.4507 (Super Duplex) Stainless Steel: 4507 quality or 1.4507 stainless steel is a stainless steel quality that falls under the super duplex class. This stainless steel quality is the duplex type accepted at the top among the super duplex stainless steels and is considered a better stainless steel quality in terms of both corrosion resistance and mechanical properties than other duplex materials such as 1.4410 – 1.4501. Since there is not much difference between 1.4507 grade and 1.4410 and 1.4501 grades in terms of corrosion resistance and mechanical properties, the generally more common 1.4410 super duplex material is preferred in many applications. 1.4507 quality material has a very good corrosion resistance even in harsh environments.

• 4418 (1.4418) Stainless Steel: The 1.4418 quality stainless steel material is a stainless steel quality that has become increasingly popular in recent years. This quality material is known by many as 1.4057. This stainless steel quality, which we can consider as a material between 431 (1.4057) quality and 1.4542 (630) quality stainless material, has very good mechanical properties. The most important feature of this quality material is that it can preserve its mechanical properties even when the temperature drops. For example, in sea water close to 0 degrees, this material is often preferred in cold environments, as it does not lose its performance compared to its counterparts or loses less.

• 15-5 PH (1.4545 & 1.4548) Stainless Steel: 15-5 PH (1.4545 – 1.4548) stainless steel material is a more advanced and improved version of 1.4542 (630) quality stainless steel material. The material, also known as S15500, is a material developed for more special places where 630 quality materials are insufficient. 15-5 PH material has both better mechanical and purer structure compared to 17-4 PH material. 15-5 PH materials outperform 17-4 PH materials against both transverse and longitudinal forces.

• 1.4534 (PH 13-8 Mo) Stainless Steel: Known as PH 13-8 Mo or 13-8 Mo, this stainless steel grade is a special and expensive stainless steel grade produced entirely for aviation. This stainless steel quality, which is hardened by aging and is very strong, is also called S13800. The code of this quality material, which has a limited usage area, is 1.4534 according to the religion norm. 1.4534 ie PH 13-8 Mo (S13800) material is a rarer stainless steel grade that is not as common as 17-4 PH and 15-5 PH. It is more durable than 17-4 PH and 15-5 PH materials in terms of 13-8 Mo corrosion resistance. PH 13-8 Mo grade stainless steel is widely used in aircraft parts and aviation. This stainless steel grade is produced in accordance with AMS 5629 aviation norm. PH 13-8 Mo material, which is preferred for aircraft landing gear under high load, parts with high corrosion, and parts where mechanical strength must be at the highest level, can also be preferred in different applications.

• 1.4313 (415) Stainless Steel: 1.4313 stainless steel is a stainless steel quality that is increasingly used. 1.4313 quality material is in the martensitic stainless class and this quality material is also shown as X3CrNiMo13-4. In addition, 1.4313 material, which is shown as AISI 415 quality, attracts magnets. This quality material can be heat treated and this quality material is usually pre-heat treated after production. The most common heat treatments are QT650, QT780 and QT900 respectively. The numbers 650, 780 and 900 indicate the minimum breaking strength of this quality material in MPA. It is usually produced as QT780 and QT900.

• 1.4006 (410) Stainless Steel: 1.4006 stainless steel is a martensitic group material with a low carbon ratio and a high chromium ratio. It can be hardened. It shows very good corrosion properties in the conditioned condition. It has very good cold workability in the annealed condition. For the production of cutlery, knives and scissors suitable.

• 1.4980 (Incoloy A-286, UNS S66286) Stainless Steel: Incoloy A-286 or other commonly used name Alloy A286 is an alloy material similar to stainless steel in terms of both the elements it contains and the ratios of the elements it contains. This material, which basically consists of an iron nickel chromium alloy, contains elements such as molybdenum and titanium. While molybdenum and titanium make the material more corrosion resistant, it also provides extra strength to the material in mechanical terms.