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Supplier KMZ offers stainless steel pipe brand 12H25N16G7AR (ЭИ835) at economical price. The provider ensures timely delivery of products at any address specified by the consumer. The price is the best in this segment of the rental.

Technical characteristics

Steel 12H25N16G7AR (or ЭИ835) belongs to the category of stainless steel heat resistant high alloy steels. Used in power engineering in the manufacture of gas-pumping units, combustion chambers, diaphragm elements, etc. Often used to replace such high-temperature alloy as KHN60VT, KHN38VT or KHN45JU. This steel is an austenitic steel with high content of Nickel and chromium, and is produced in electric furnaces. Its operating characteristics up to temperatures of 1000…1050°C.

Percentage composition, GOST 5632−82.

  • Iron — base,
  • Carbon up to 0.12%;
  • Chrome 23…26%;
  • Nickel 15 to 18%;
  • Silicon — not more than 1.0%;
  • Manganese — 5…7%;
  • Copper — 0,3%;
  • Boron is 0.01%.

As non-metallic impurities in the composition of the steel are associated nitrogen (up 0.45%), sulfur (not more than 0.02%) and phosphorus (not more than 0,035%).

Performance properties

  • Coefficient of thermal conductivity (a temperature of 900 °C), W/MK — 27,7;
  • Coefficient of thermal linear expansion (temperature 900 °C), µm/K-1 — 18,9;
  • The rate of oxidation in air at 1000 °C, mm/year is 0.9.

Mechanical characteristics

  • Prolonged high temperature strength, MPa — 23;
  • Limit strength at room temperature (after hardening), MPa — not less than 690;
  • The yield strength at room temperature, MPa — not less than 325;
  • Elongation — 35%;
  • The modulus of elasticity, GPA — 137;
  • Impact strength, kJ/m2 at 900 °C — not less than 235;
  • The relative narrowing of the cross-sectional area, % — not less than 45.

Treatment

weldability is satisfactory, the temperature range of hot plastic deformation — 950…1170°C.

Buy

Supplier KMZ offers to buy stainless steel pipe brand 12H25N16G7AR (ЭИ835) at economical price. The provider ensures timely delivery of products at any address specified by the consumer.

Supply, price

Buy stainless steel pipe brand 12H25N16G7AR (ЭИ835) provider KMZ can at an affordable price. The price is formed based on the European standards of production. Buy stainless steel pipe of any brand at a reasonable price, you can wholesale or retail. Regular customers can take advantage of the discount system of discounts from the company KMZ. The price is the best in this segment of the rental.