Molybdenum rod

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
MCH Delivery from the stock, in stock
MCHVP Delivery from the stock, in stock

Many things we do not understand, argued Kozma Prutkov, not because our concepts are weak, but because they are not included in the circle of our concepts.

Advantages of molybdenum bars

Molybdenum bars have a high modulus of elasticity and low coefficient of thermal expansion, mechanical strength, heat resistance and heat resistance allows it to be used for the most demanding products. Such rod is resistant to aggressive gas environment, industrial condensate, concentrated alkali and acid solutions (hydrochloric, sulfuric, hydrofluoric), so it is widely used in chemical production. Such rod withstands considerable mechanical stress at t°> 1000 °C. Its refractoriness and resistance to scale make it indispensable for hot work in metallurgy. Molybdenum is almost 50% lighter than tungsten and therefore has a higher specific strength at temperatures up to 1370 °C. Molybdenum as an alloying element simultaneously strengthens the alloy and increases resistance to corrosion. As early as the 11th century in Japan, samurai blades were alloyed with this metal. Such blades are not hardened by heat treatment, but only by semi-hot dibbing. The necessary qualities are achieved by annealing and deformation.

Disadvantages

The considerable cost of molybdenum rolled products and, in particular, bars is connected with the fact that molybdenum is a rare element of the earth's lithosphere, it is difficult to isolate in pure form, molybdenum alloys are refractory and are poorly processed. Nevertheless, today molybdenum products all over the world are in steadily high demand.

Production

Grade Mo Surface condition Bar, diameter, mm Bar, length, mm Over Not more
MS Honed rod 16. ± 0,5 350
MF Unsharpened rod .16 - 20 ± 1,0 350
MF Unsharpened rod 20 - 28 ± 1,5 200
MF Unsharpened rod 28 - 40 ± 2,0 150
PM Honed rod 16 ± 0,5 100 500
MS Honed rod 16 - 20 ± 0,8 100 500
MF Honed rod 20 - 36 ± 0,8 100 500
MHVP Unsharpened rod 16 ± 0,5 250
MHVP Unsharpened rod 16 - 20 ± 1,0 250
MHVP Unsharpened rod 20 - 28 ± 1,5 200
MHVP Unsharpened rod .28 - 40 ± 2,0 200
MHVP Unsharpened rod 40 - 60 ± 2,5 150
MHVP Unsharpened rod .60 - 125 ± 2,5 100
MHVP Honed rod 16 ± 0,5 100 500
MHVP Honed rod 16 - 20 ± 0,8 100 500
MHVP Honed rod 20 - 36 ± 0,8 100 500
MHVP Honed rod 36 - 60 ± 0,8 100 500
MHVP Honed rod .60 - 120 ± 1,0 100 500

Bar is shipped straight, deflection less than 1% of length. The surface is usually dark gray or black. The thickness of MK grade rod is up to 11 mm, while MRN and MCh grades are over 15 mm. Lengths of 10% of bars are allowed to deviate from the nominal. The rod is cut evenly, only small chips are allowed on the ends. If molybdenum bar forged, its surface may show traces of machining and oxidation, it does not contradict the TU. On the surface should not be: delamination, a large burr and cracks, but there may be small burrs and traces of dressing. Molybdenum bars of MPR grade can have single coarse burrs according to TU requirements.

Application

Molybdenum rod is indispensable for parts that operate under significant loads at high temperatures. It is used for making heat-resistant parts of furnaces, molds and machine rods for die-casting copper, aluminum and zinc alloys. Such rod is the basis of mandrels of piercing mills, dies, pressstamps. Molybdenum electrode is used for welding heat-resistant and low-alloy steels. Such electrode may be coated with copper or chromium may be added to the composition. Molybdenum electrode is used in glassmaking to cook glass. The thinnest molybdenum rod are used together with tungsten in a wide variety of electro-vacuum devices.

Buy at a bargain price

Evek GmbH stocks a wide range of rare and refractory metal bars. We supply molybdenum bar and molybdenum round wholesale and retail at the best price. It is determined by the technological features of production without the inclusion of additional costs. With us it is easy to buy in bulk all the necessary molybdenum alloys for large-scale production. We also offer favorable terms on molybdenum alloys for retail buyers. You will be satisfied with the level of service and high quality products. On our site. you will find all the necessary information about the products, you can download the product catalog, view the price list for molybdenum and other refractory alloys. We are waiting for your orders.