23.12/2022
Merry Christmas and Happy New Year 2023!
27.06/2022
POLEMA’s QMS confirmed its compliance with ISO 9001:20015
POLEMA JSC confirmed the compliance of the current QMS with the requirements of ISO 9001:2015.
03.06/2011
Progressive materials for multi-functional vacuum coatings
Application fields of materials for multi-functional vacuum coatings, characteristics of sputtering targets and evaporable sources used for technologies of physical deposition of hardening, protective, decorative and light-reflecting coatings, resistive, switching and transparent electro conductive films.
24.05/2011
Molybdenum and tungsten products for production of leucosapphires
POLEMA JSC is the leading global manufacturer of chromium, molybdenum, tungsten products, metal powders and composite materials.
Sheets and boats made from nickel alloy
JSC POLEMA manufactures precision-alloy products of the grade Ni67Mo28-PM (type NIMO-28):
- hot-rolled sheets for producing boats and other components for use in aggressive environments and at high temperatures;
- boats for reduction furnaces.
Alloy chemical composition (%, mass.):
- molybdenum 27-28;
- iron 6-7;
- remainder - nickel.
Sheets from Ni67Mo28-PM
Hot-rolled sheets from Ni67Mo28-PM grade alloy are produced with a thickness of between 2.0 and 6.0 mm, a width from 200 to 400 mm and a length of between 300 and 900 mm. Actual dimensions and acceptable size deviations are established on the base of order.
The following mechanical characteristics are controlled for sheets with a thickness from 2.0 to 4.0 mm: tensile strength of at least 80 kg/mm2 and a relative elongation of at least 20%.
The sheets are delivered without surface etching.
Boats from Ni67Mo28-PM
The shape and dimensions of boats made from Ni67Mo28-PM (NIMO-28) grade are determined based on the client's drawings.
