Annealing, hardening and heat treatment of zirconium
Are you interested in annealing, hardening and heat treatment of zirconium? We offer to buy zirconium from the specialized warehouse of the supplier Evek GmbH with delivery in any city. Full compliance with modern quality standards. The supplier Evek GmbH offers to buy rare-earth metals, the price is optimal in this segment of rolled metal products.
Thermal treatment
Zirconium can be heat treated using standard equipment and processes used for other materials, with some additional considerations. Since zirconium reacts with carbon-containing substances at elevated temperatures, it is important to remove all dirt, oils, grease and other residues before heat treating.
Supports
Since zirconia has a low strength at the temperatures commonly used in heat treating, it is also important to provide good supports so that deformation of the product does not occur. To this end, intermediate supports made of materials with higher heat capacity are used. Often such products are heat treated and placed on refractory bricks or other materials that do not react with zirconium. A sufficient number of thermocouples must be used to monitor the temperature of the metal at all times. The company Evek GmbH offers to buy rolled products, semi-finished products made of zirconium or its alloys that have undergone heat treatment. The products are sold at affordable prices from the manufacturer. The supplier guarantees the timely delivery of metal to any address specified by the customer.
Peculiarities of Heat Treatment Regimes
For zirconium, you can use heat treatment in a furnace or localized heat treatment. Generally, electric, gas-fired heat treatment furnaces where zirconium is heated are predominant. However, when surface oxidation is undesirable, vacuum or argon electric furnaces are used. If a gas heating method is used, a slightly oxidizing or neutral atmosphere is required. In addition, direct flame should be avoided.
Zirconium Alloy 702 (Grade 60702)
C | O | Cr | N | Hf | Fe | Zi |
<0,05 | >0,16 | <0,020 | <0,025 | <4,5 | <0,20 | basis |
Grade 60702 does not normally require stress relieving, but a heat treatment (t° 565°C) and an exposure at this temperature for 30-60 minutes may reduce residual stresses, improve fatigue properties and enhance corrosion resistance.
Zirconium alloy 705 (Grade 60705)
C | Cr | N | Hb | Fe | Zr |
<0,05 | <0,020 | <0,025 | 2,00-3,00 | <0,20 | basis/ |
Grade 60705 can be heat treated for 14 days after welding to prevent cracking due to hydride buildup. A four to six hour heat treatment at 565 °C will increase the subsurface hardness to about 480 Vickers, (about 47 HRC).
Buy, bargain price
Are you interested in annealing, hardening and heat treatment of zirconium? We offer to buy zirconium, the price - determined by the technological features of production without including additional costs. The website of Evek GmbH displays information on the latest arrivals of products. It is possible to order the rolling of any metal. We invite to partner cooperation.