TU 14-1-2131-77. Iron-nickel steel

GOST 849-97
GOST 2132-90
ТУ 14-1-2131-77
Title: Hot-rolled plates of corrosion-resistant alloy CrN40MDB-VI (EP937-VI). Technical specifications.
Entered into force: 01.12.77
Amendments: 5, 6
Pages: 4
Description of TU 14-1-2131-77: These specifications apply to hot-rolled sheets of stainless steel CrN40MDB-VI (EP937-VI), used in chemical engineering.
TU 14-1-2131-77 is located in: Sheets and Bands - Catalogue TU.
List of grades described in TU 14-1-2131-77: CrN40MDB (EP937)
Document TU 14-1-2131-77 provided by portal member.

Iron-nickel steels

Mark Application
CRN40MDB-VI
(EP937-VI)		 A weldable non-magnetic wrought alloy. Chemical equipment operating in a particularly aggressive environment.
06XHN28MDT
(EI943).		 Production of welded chemical equipment (reactors, heat exchangers, pipelines, tanks) operating at elevated temperatures.
CRN30MDB
(EK77)		 Production of welded chemical equipment operating in particularly aggressive media producing complex mineral...
CRN40MDTU
(EP543U)		 Production of a variety of chemical equipment (centrifugal separators, centrifuges, etc.), exposed when operating in...
03CRNI28MDT
(EP516).		 Production of welding equipment for the production of sulphuric acid at all concentrations up to 80 °C, nitrophoska, extracting...

Alloying has a multidimensional effect on the quality of steel. Chromium increases hardness and corrosion resistance. Nickel makes the alloy ductile; Vanadium increases strength and resistance to impact. Molybdenum makes the alloy red-resistant and resists oxidation at high temperature. Manganese content above 1% increases hardness, impact strength and wear resistance. Titanium increases corrosion resistance. Copper increases ductility.

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