1. The surface of molybdenum bar is silver gray metallic luster. The surface of straightening molybdenum bar has dark gray oxide layer. There is no water and oil product phenomenon on the surface.

2. Grades are divided into GMPM 1, GMDM 4 according to the chemical composition and the use.

3. Molybdenum bars use:
① GMPM.1 is mainly used for wire cutting and electric light source material.
② (2) GMDM.4 is mainly used for alloy additives and molybdenum base alloy materials.

4. The chemical composition shall be carried out in accordance with the relevant technical requirements of the national standard GB / T34622007< molybdenum bars and molybdenum slabs.
The main characteristics of molybdenum bars are as follows:
The index name GMPM. 1 and GMDM. 4
The main content of M.% ≥ 99.9 ≥ 99.7
Total impurity % <0 1 <0 3
Fe    ≤0 005    ≤0 05
Nl    ≤0 002}    ≤0 01
Sl    ≤0 002    ≤0 01
W    ≤0 01    ≤0 05

5. Packing: GMPM.1 products are packed in wooden cases or cartons lined with slotted foam boards. GMDM.4 used 100kg or 250kg antirust drum, special requirements according to mutual consultation.

6. Storage and transportation products should be moisture-proof and anti-collision. Stored in ventilated, dry and free atmosphere. To prevent the acid-base oxidation. The storage period should not exceed six months.