Chemical composition and mechanical properties of 15CrMoR and 15CrMoR (H)
Chemical composition and mechanical properties of 15CrMoR and 15CrMoR (H)
1. 15CrMoR belongs to vessel of technical department of Wuyang Iron and Steel Co., Ltd. and is used for pressure vessel.
15CrMoR (H) is the hydrogen plate of WISCO, belonging to the vessel Institute of WISCO technology department.
2. Explanation of the scope of implementation: 15CrMoR executive standard: GB / t713-2014 WISCO hydrogen 15CrMoR (H) executive standard wyj410-2008
It belongs to a kind of medium temperature hydrogen resistant steel, and its production areas are Wugang, Shougang, WISCO, Nangang, Xingang, Xianggang and Jigang.  
3. Composition introduction "15" is carbon content and composition is 0.15%, "CR" is composition containing certain chemical elements - chromium "Mo" is composition containing certain chemical elements - molybdenum "R" is the first letter 15CrMoR of vessel plate capacity.
Heat treatment is often used: normalizing + tempering ＜ 550 ℃, with high endurance strength.
4. 15CrMoR chemical composition:
5. Mechanical properties of 15CrMoR:
6. 15CrMoR (H) mechanical properties:
7. The following processes shall be carried out for the maximum and minimum simulated PWHT:
Max. PWHT:: 690 ± 10 ° C × 18 (0) H
Min. PWHT:: 690 ± 10 ° C × 6h (0)/
8. Plate mark of steel plate: in accordance with GB713-2008.
9. Features of 15CrMoR and 15CrMoR (H) steel plates:
9.1. Steel purity: p0.010%, s0.005%, [n] 70ppm, [O] 15ppm, [H] 2ppm, high purity steel with total inclusions of 20ppm.
9.2 good toughness and weldability.
9.3. Leading heat treatment technology: normalizing, quenching, tempering, tempering and other heat treatment processing.
9.4. Significantly improve the plasticity and impact toughness of steel, and improve the anisotropy of steel.
10. 15CrMoR and 15CrMoR are currently used in:
At present, Cr Mo steel is widely used in the world for its heat strength and hydrogen resistance. Because of the addition of Cr, Mo and other alloy elements in low carbon steel, the comprehensive properties of the steel are greatly improved. Cr Mo steel has good high temperature mechanical properties, high temperature oxidation resistance, corrosion resistance, good toughness, process function and weldability, so it is widely used in the production of petrochemical, coal conversion, nuclear power, turbine block, thermal power and other large-scale equipment with severe service conditions and complex corrosive medium. In the past, most of the steel was imported from abroad. As a research and production base of wide and thick plate in China, WISCO has realized the localization of Cr Mo steel plate in order to break the monopoly of Cr Mo steel abroad and revitalize national industry.
Petroleum and petrochemical industry, chemical equipment manufacturing enterprises, power station construction, boiler and pressure vessel manufacturing and other enterprises cooperate with Wuyang Steel to produce 15CrMoR, which is used to make reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear reactor pressure shells, liquefied petroleum cylinders, turbine volutes, because of petrochemical industry, coal conversion, nuclear power, turbine cylinder, thermal power and other transportation. In the construction and production projects of equipment and components with severe service conditions and complicated corrosive medium, such as water washing tower, second transformation furnace, coke tower, desulfurization tank, waste heat boiler of conversion gas, methanation furnace, reactor, regenerator, hydrogenation reactor, methanation heater, steam generator of conversion gas, etc., many of them use 15CrMoR or 15CrMoR hydrogen treatment, 15CrMoR (H) steel plate for more than 10000. Tons. The prospect of export to the United States, Canada, Australia, India and Europe is promising. It has supplied more than 20000 tons directly to European customers.
Contact: Qin Dan Tel: 1318332239