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GOSTs for steel 10Х11Н23Т3МР, ЭП33


Grade analogue W. Nr. Aisi Uns En Order
10x11n23t3mr EP33 Buy from stock, view availability

Technical characteristics

The chemical composition of this steel grade is defined by GOST 5632-72. The main additional components to the material based on iron are nickel and chromium. Steel belongs to the austenitic class and is usually used for the manufacture of parts operating in conditions up to +700 ° C, in the manufacture of springs and fasteners. The steel grade 10Х11Н23Т3МР is deciphered as follows. 10 - carbon content of about 0.10%, X11 - chromium content of about 11%, H23 - nickel content of 23%, T3 - about 3% of titanium, M - about 1% of molybdenum.

Percentage composition of 10Х11Н23Т3МР GOST 5632-72

C S P Ni Cr Mo Ti Mn Al B Si Fe
≤ 0.1 ≤ 0.01 ≤0.025 21 - 25 10 - 12.5 1 - 1.6 2.6 - 3.2 ≤ 0.6 ≤ 0.8 ≤ 0.02 ≤ 0.6 basis


Alloying has a multidimensional effect on the quality of steel. Chromium increases hardness and corrosion resistance. Nickel makes the alloy ductile; it is resistant to shock loading. Molybdenum gives the alloy redness, strength, resistance to oxidation at high temperature. Manganese content above 1% increases hardness, impact strength, wear resistance. Titanium increases stability, corrosion resistance. This steel is characterized by:

  • satisfactory weldability;
  • good machinability by cutting;
  • up to 10% elongation.


An additive welding wire Sv-10H16N25AM6, Sv-08H15N23V7G7M2 is used as a welding filler. Sheet thickness up to 10 mm can be welded by manual electric arc welding in a satisfactory manner. The argon-arc method is recommended for welding sheets with thickness less than 6 mm and root seams of more than 10 mm. It is preferable to weld this steel with stainless steels such as 07X16H6, 12X18H10T, 12X21H5T and heat-resistant XH60VT and XH77T1O. Sv06Cr15N60M15 welding wire is recommended for welding with heat resistant nickel alloys. Sv-04Cr19N11MZ welding wire is recommended for welding with stainless alloys.


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