Are you interested in heat treatment and annealing of nitrided 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.

Relevance

Nitriding as a process that increases the strength, wear resistance and surface hardness of alloy steels is itself a kind of chemical heat treatment, so it is carried out at the final stages of the technological process of parts production.

Heat treatment sequence

Improving is carried out beforehand: hardening and subsequent high tempering at temperatures of 500-700°С (tempering temperature increases with increasing carbon content of nitrided steel). The purpose of the improvement is to obtain the most favorable combination of strength and toughness indicators. The hardening process consists in either quenching at 900 ... 950°С in oil or in normalization by heating to 850 ... ^8800°С. After the hardness improvement the hardness of the part should not exceed 35...40 HRC;

Improvement of structure

To improve the structure and decrease the subsequent warping, combined pretreatment - hardening followed by annealing - is applied. In this case, the heating temperature is set 20...30°С higher. This technology is used for subsequent nitriding of complex-shaped parts. Evek GmbH offers to buy a wide range of nitrided structural alloyed steel at an affordable price. We provide delivery of products to any place on the continent. The price is optimal.

Finishing

Consists in the sequential performance of the following technological transitions:

• Cleaning the finished products of contaminants and traces of scale/rust;
• Phosphating (only for critical products);
• Loading in the muffle furnace so that the adjacent surfaces of the parts do not touch each other;
• Muffle tightness test, after which the furnace is turned on and heated to 120 ... 150 ° C;
• Passage of ammonia under pressure of 35 ... 50 mm Hg at a temperature of 500 ... 570°С in the furnace. The duration of the process is calculated on the assumption that no less than 14-15 hours are required to obtain a 1 mm nitrated layer;
• Slow cooling along with the furnace to a temperature of 300 ... 3500 ° C and then stop feeding ammonia;
• Control the hardness of the finished product.

To reduce the labor intensity of treatment and increase productivity of the process electric arc or ion nitriding is used.

Purchase. Supplier, price.

Are you interested in heat treatment and annealing of nitrided structural steel? The 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. We invite you to partner cooperation.