Heat-resistant steel:
 Standard: GB / T 1221-1992
Uses:
Can withstand repeated heating 1035 ℃ the following anti-oxidation of steel. Used as furnace parts, nozzle, combustion chamber and so on.

Features:
2cr25ni20 austenitic chromium-nickel stainless steel is stainless steel with good oxidation resistance, corrosion resistance, because a higher content of chromium and nickel content, making with high-temperature creep strength at high temperature continuous operation, with good resistance to temperature of. By Nickel (Ni), chromium (Cr) content was high, with good resistance to oxidation, corrosion, acid salt, high temperature performance, high temperature electric furnace steel pipe dedicated to manufacturing and other occasions, austenitic stainless steel to increase the carbon content after , because of its solid solution strengthening effect of the strength is improved, the chemical composition of austenitic stainless steel features are chromium, nickel-based add molybdenum, tungsten, niobium and titanium and other elements, because of its organization as a face-centered cubic structure, which at high temperatures under the high strength and creep strength. 2520 has 2cr25ni20 stainless steel plate stainless steel, 2cr25ni20 stainless steel rod, 2cr25ni20 stainless steel

 2cr25ni20 stainless steel angle iron, 2cr25ni20 stainless flat steel, round steel, stainless steel plate, stainless steel bar, stainless steel pipe

 Brief 2cr25ni20 stainless steel composition and performance
 1, Summary
 Series of high-alloy stainless steel, excellent high temperature oxidation, the following heat-resistant parts for 1000 ℃.
 2, characterized
1) Excellent high temperature oxidation resistance;
 2) Use a wide temperature range (1000C0 below);
 3) non-magnetic solid solution state;
 4) high-temperature strength.
 2, the scope
 Exhaust pipe, pipe, heat treatment furnaces, heat exchangers, incinerators, and other requirements of steel heat resistance, high heat / high temperature contact parts.

Chemical composition:

Carbon C: ≤ 0.25

Si Si: ≤ 1.50

Manganese Mn: ≤ 2.00

Sulfur S: ≤ 0.030

Phosphorus P: ≤ 0.035

Chromium Cr: 24.00 ~ 26.00

Ni-Ni: 19.00 ~ 22.00

Mechanical capacity:

  Tensile strength σb (MPa): ≥ 590

Conditions yield strength σ0.2 (MPa): ≥ 205

Elongation δ5 (%): ≥ 40

Reduction of area ψ (%): ≥ 50

Hardness: ≤ 201HB

Heat treatment range:

Standard heat treatment: solution 1030 ~ 1180 ℃ fast-cooling.

Microstructure: Organizing for the austenitic type.