Shipment of US Cobalt Balls

On 20200704, I received an inquiry from a US friend on Google. American friends are looking for 1 inch valve balls. In the exchange, I recommended the valve ball made of satellite 20 to him. The customer purchased 300 satellite 20 1 inch balls.

  1. Material of cobalt-based alloy

First, let me introduce you to the cobalt-based alloy. Cobalt-based alloy is a wear-resistant, corrosion-resistant and high-temperature resistant material. Usually, we also call them cobalt chromium tungsten or Stellite. Let me show you the chemical composition and hardness of Stellite 20.

Composition (% ) C Si Mn Cr Ni S P Mo W Fe Co Hardness
Stellite 20 2.30- 2.65  1.0  1.0 31.0- 34.0  2.5  0.04  0.04 1.0 16.0- 18.0  2.5 Bal. HRC:52- 60
  1. Introduce some properties of Stellite (cobalt-based) alloy:

①. It has high strength, good thermal fatigue resistance, thermal corrosion resistance and wear resistance, and has good weldability.

②. The thermal stability of carbide in cobalt-based alloy is good.

③. Cobalt-based alloy has good heat resistance and corrosion resistance.

3.Finally, show some pictures of Stellite 20 cobalt balls

①. Test photos

②. Display photos

Stellite 20 cobalt balls

③. Packing photos

Eternal Bliss Alloy Casting & Forging Co, Ltd.

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