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What is alloy structural steel 15CrMoR boiler plate

15CrMoR steel is specified in standard GB/T 713, the specification for boiler and pressure purposes, alloy steels with specified elevated temperature properties.

Alloy structural steel 15CrMoR boiler plate belongs to medium temperature hydrogen resistant steel. The number "15" respect 0.15% carbon content. When the temperature is below 550℃, alloy structural steel 15CrMoR boiler plate has high endurance strength.

Alloy structural steel 15CrMoR boiler plate chemical composition:

C% Si% Mn% Cu% Ni% Cr% Mo% P% S%
0.08-0.18 0.15-0.40 0.40-0.70 ≤0.30 ≤0.30 0.80-1.20 0.45-0.60 ≤0.025 ≤0.010

Alloy structural steel 15CrMoR boiler plate mechanical property:

Steel Grade Thickness, in mm Tensile Strength Yield Strength, min Elongation, %, min
15CrMoR 6<T≤60 450-590 295 19
60<T≤100 275
100<T≤200 440-580 255

Alloy structural steel 15CrMoR boiler plate features:
The added Cr and Mo alloy elements make the comprehensive properties of alloy structural steel 15CrMoR boiler plate greatly improved. For example, alloy structural steel 15CrMoR boiler plate has good high-temperature mechanical properties, high temperature oxidation resistance, corrosion resistance, good toughness, technological properties and weldability.

Alloy structural steel 15CrMoR boiler plate application:
Alloy structural steel 15CrMoR boiler plates are widely used in the manufacture of large equipment, such as petrochemical, coal conversion, nuclear power, turbine cylinder, thermal power, etc.

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