Дейност С ОТПАДЪЦИ ОТ НЕРЪЖДАЕМА СТОМАНА Stainless steel waste

Stainless steel waste

Nord Holding operates with stainless steel waste (scrap) according to the provisions of the Waste Management Act.

Stainless steel waste (scrap) consists of chrome-nickel pieces, parts, shavings, etc. with different nickel content.

In Nord Holding’s nomenclature it is grouped into 5 types:

Types of stainless steel waste

  • STAINLESS STEEL WITH 8%
    minimum nickel (Ni) content
  • STAINLESS STEEL WITH 9%
    minimum nickel (Ni) content
  • STAINLESS STEEL WITH 10%
    minimum nickel (Ni) content
  • STAINLESS STEEL FROM SHREDDING INSTALLATIONS
    separated at ELV shredding
  • STAINLESS STEEL TURNINGS

Stainless steel is categorized as a ferrous metal, but it is not attracted to a magnet. It is a steel alloy containing chromium and nickel in varying ratios.

Stainless steel waste shall be accepted free of other metals, impurities and contaminants, and turnings and shredder material – without excessive moisture and oil.

Upon reception, stainless steel waste is checked for radioactivity and categorized according to Nord Holding’s nomenclature based on origin and nickel content.

Nickel content is determined using a chemical analysis device.


After acceptance, the stainless steel waste is sorted, cut into sizes, baled as necessary and delivered to recycling facilities.

Recycling process

In theory, stainless steel waste is 100% recyclable. The chromium,
nickel and molybdenum contained in their composition are extremely valuable raw materials with a high value.

Stainless steel waste is recycled by being used in the production of new stainless steel.

  • SHREDDING
    Shredding of stainless steel waste.
  • CHEMICAL ANALYSIS
    Chemical analysis of the shredded fraction and separation by type.
  • MELTING
    Stainless steel scrap and raw materials are melted together in an electric arc furnace.
  • ANALYSIS AND CORRECTIONS
    The molten material is analysed and adjustments are made to the chemical composition according to the product specifications.
  • PREPARATIONS
    The molten material is cast into billets.
  • END PRODUCTS
    Plates, sheets, rods, wire and others are produced from the billets.

The production of stainless steel uses roughly:

Stainless steel waste uses pie chart
Stainless steel waste

Benefits

Use of stainless steel

Stainless steel is highly corrosion resistant and yet has the strength of steel.
This makes it a preferred material for the production of household and industrial appliances and parts with a very long life.
Stainless steel is used for:

Stainless steel waste household vessels

HOUSEHOLD WARE AND UTENSILS

Stainless steel waste kitchen furnishings

KITCHEN FURNISHINGS AND EQUIPMENT

Stainless steel waste surgical equipment

SURGICAL EQUIPMENT

Stainless steel waste constructive materials

STRUCTURAL MATERIAL IN CONSTRUCTION

Stainless steel waste industrial equipment

INDUSTRIAL EQUIPMENT

Stainless steel waste tanks

WATER, CHEMICAL AND
FOOD STORAGE TANKS