Are you interested in the history of nitriding structural steel? The supplier Evek GmbH offers to buy nitriding structural steel in any quantity at an affordable price in a wide range. We provide product delivery anywhere in the continent. The price is optimal.

General information

Nitrided structural steel specifications are stipulated by special standards, in contrast to domestic standards.

Nitriding is most effective for structural alloy steel grades that contain aluminum. Therefore, such hardening technology is most often used for steel grades 38KhMYUA, 38KhSYUA,. 38KHVFYUA. For technological reasons, nitriding is also applied to 18Kh2N4VA, 40KhNVA, 40Kh, 30Kh3VA, 18KhGT steels.

Alloying with aluminum

Alloying with aluminum complicates the technology of metallurgical production and promotes the formation of a number of melting defects, primarily hairiness and nonmetallic inclusions. At the same time, it increases the tendency to decarburize during heating. Therefore, high (up to 3 mm) allowance is normally left for subsequent machining on nitriding structural steels.

Nitriding

For structural alloy steels it is the most effective way to increase hardness and wear resistance but in this case the corrosion resistance is somewhat reduced. Nitriding of structural steel alloys containing titanium is especially effective (the amount of titanium shall be 8 to 10 times higher than the amount of carbon). In this case the process is faster, the layer is highly hard and is not brittle. Evek GmbH offers to buy nitrided structural alloy steel at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Challenges of nitriding

Nitriding/nitriding of austenitic alloyed steel is difficult due to the low values of the coefficient of nitrogen diffusion into the surface layers. With increasing nitriding time, defects such as flaking or pitting are often observed. Therefore, saturation of the surface of such steels with nitrogen is performed at elevated temperatures (680 ... 750 ° C), with a dwell time of at least 30 min... In this case the grain size in the microstructure should not exceed 4 ... 5 points according to GOST 5636-83. Cooling of such products is carried out by blowing with a jet of dried nitrogen. As a result, the decomposition of nitrides is slowed down and the finished products do not have surface cracks. Nitriding of alloyed electrotechnical steel alloys such as E10Sh, 12Cr13, 16Cr is also performed by a similar technique .

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Are you interested in the history of nitriding structural steel? Supplier Evek GmbH offers to buy nitriding structural steel in any quantity at the manufacturer's price. We provide product delivery anywhere in the continent. The price is optimal.