Black molybdenum rod
Appearance: Forged molybdenum rods and polished molybdenum rods; the surface of the forged molybdenum rods is allowed to have an oxide film and slight forging hammer marks, and the surface of the polished molybdenum rods has a metallic luster without significant phenomena; neither surface Delamination, cracks, surface thorns and longitudinal cracks.
Specification: 16> φ> 0.8 × L (mm). Diameter and length deviation are negotiated according to GB / T4188-84 or user requirements.
Application: Mainly used for manufacturing electric vacuum devices and electric light source parts.
The chemical composition of the phase bar should meet the requirements of the following table:
The allowable deviation of the diameter of the molybdenum rod should meet the requirements of the following table: