Tungsten rod is made by forging. We collect pure tungsten powder into designed plastic mould. Sintering the mould in sintering furnace after isostatic cool pressing. And then, forging the sintered tungsten rod to required diameter. The forging process is not only to make required diameter, but also to make the tungste bar with higher density. You know after sintering, the density of the tungsten rod bar is around 18.5g/cm3, but after forging, it would be more than 19g/cm3.
Tungsten rod bar is popular in glass melting industry. As the heating element, tungsten rod is a good choice for high temperature. Tungsten rod is also used as welding electrode. Even high speed tool, automotive automatic products and sputtering target are it’s application. All these applications are thanks to it’s low thermal expansion, good thermal conductivity, enough resistance to electrical resistance, high elasticity modulus ect.
Tungsten rod diameter: ≥2mm
When the tungsten rod bar diameter ≥100mm， we will need HIP to make the density higher.
Material | purity (%) | diameter (mm) | density (g/cm³) | surface |
| tungsten rod | ≥99.95 | ≥2 （＜80） | ≥19.2 | black, alkaline wash, polish |
| tungsten rod bar | ≥99.95 | ≥80 | ≥18.8 | |
| related products: tungsten wire, tungsten electrodes, tungsten thread rod | ||||
At first we will make sure that we got all customer's requirements clear. Then place order to production department and inspection department. Each production process will test themselves if everything is right. And before shipping, all products will pass the packing department only after inspection department inspected that the products meet customer's requirements. If not, the products will go back to production department for fixing or remaking.
For production, normally our lead time is 20-30 days. But according to different products and different quantity, it changes a little. If your order is emergency, contact with us, we will find a way out to solve your problem. For shipping, normally we ship by express and air. Express takes about 7-10 days, and air 3-5 days. And if customer requires by sea, we will ship by sea, it takes normally 40-50 days.
All our products are shipped after strict inspection and safety packing. Inspection by each production process makes sure the quality is good. And the inspection department will inspect again carefully to make sure everything is right. But if quality issue really occurs, we are sorry, and we will be responsible. To fix the products or remake them, we will make everything right.
In order to keep our healthy cooperation, our payment term normally is 50% payment in advance, balance paid before shipping. And if customer needs, we will calculate the shipping cost for your reference.
