1, Molybdenum tube surface appearance silver gray metallic luster. Straightening molybdenum oxide layer dark gray surface. Product surface without water and oil-soaked phenomenon.
2, grade according to chemical composition and for different purposes into GMPM. A 1, GMDM. 4 two grades.
3, Molybdenum crucible Use
(1) GMPM. 1 is mainly used for wire EDM and Electric Light Source Materials molybdenum wire materials.
(2) GMDM. 4 is mainly used for alloying additives and molybdenum-based alloy materials.
4, the specification (1 5 ~ 30) × L (250 ~ 800) mm wherein GMDM. A 4-grade molybdenum length L (30mm mass fraction ≤ 5%
5, the chemical composition reference to national standards GB/T34622007 "molybdenum and molybdenum slab" of the relevant technical requirements of execution.
Molybdenum main features of indicators are as follows:
Trademark
Index Name GMPM. A 1 GMDM. -4
Main content M. % ≥ 99 9 ≥ 99 7
% Total impurities <01 <03
Where: Fe ≤ 0 005 ≤ 0 05
Nl ≤ 0 002} ≤ 0 01
Sl ≤ 0 002 ≤ 0 01
W ≤ 0 01 ≤ 0 05
6, packing GMPM. A product with a wooden box or carton packaging, which has slotted foam board, GMDM. 4 with 100kg or 250kg iron drum rust, special requirements determined through mutual consultation.
7, storage products transport should be moisture collision. Stored in ventilated, dry place and no acid atmosphere. Prevent oxidation. Storage period should not exceed six months.
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