What is the material of 15CrMoR, mechanical properties and chemical analysis of 15CrMoR

15CrMoR What material is it ,15CrMoR Mechanical properties and chemical analysis Wuyang Steel

15CrMoR And 15CrMoR(H) What's the difference? ？

15CrMoR(H) After hydrogen treatment 15CrMoR, The purpose of hydrogen exposure is to prevent hydrogen corrosion , Heat treatment is normalizing . Wuyang Iron and steel sun fan

15CrMoR It's a container plate , Heat treatment is normalizing + Temper .

Both are Vessel Plates , The difference is that they are used in different places .15CrMoR(H) For corrosion resistant equipment .15CrMoR It's a container plate .

15CrMoR It belongs to steel for pressure vessels ,15CrMoR（H） It is the hydrogen plate of Wugang , All belong to the vessel Institute of Wugang technology department .

however 15CrMoR perform GB/T713—2014 standard , Wuhan Iron and Steel Co., Ltd. hydrogen 15CrMoR（H） perform WYJ410-2008 standard .

1、15CrMoR brief introduction
1、15CrMoR It is steel for pressure vessels , It belongs to a medium temperature hydrogen resistant steel , 15CrMoR Steel is added to low carbon steel Cr、Mo Wait for alloy elements , The comprehensive properties of the steel are greatly improved . For example, it has good high-temperature mechanical properties 、 High temperature oxidation resistance 、 Corrosion resistance 、 Good toughness 、 Process performance and weldability , Therefore, it is widely used in the manufacture of petrochemical industry 、 Coal conversion 、 Nuclear power 、 Turbine block 、 Thermal power and other use conditions are harsh 、 Large equipment with complex corrosive medium .15CrMoR Corresponding brands are SA387Gr12CL2,1Cr-0.5Mo. In the past, most of this kind of steel was imported from abroad . Wugang company, as the domestic research and production base of wide and heavy plate , To break the foreign monopoly , Revitalize national industry , Realized Cr-Mo Localization of steel plate .

1.2 Pure steel ： Wugang can produce P 0.010％、S 0.005％、N70ppm、O15ppm、H2ppm、 Total inclusions in steel 20ppm High purity molten steel . 15CrMoR present @ cargo + cutting

Two 、15CrMoR It is a low alloy hot strength steel , It belongs to medium temperature vessel plate

“15” It's the carbon content 0.15％

“Cr” It's the ingredient that contains certain chemical elements - chromium

“Mo” It's the ingredient that contains certain chemical elements - molybdenum

“R” It is a letter of the container plate
2、15CrMoR Manufacturing methods
①15CrMoR Steel is smelted in an oxygen converter or electric furnace , And shall be refined outside the furnace .
②15CrMoR Continuous casting slab 、 The subsoil ratio of steel ingot shall not be less than 3; The compression ratio of electroslag remelting billet shall not be less than 2.
3、15CrMoR Heat treatment often adopts ： Normalize + Temper . stay 550℃ Following time , It has high endurance strength .
4、 Executive Standards ：GB713—2008
5、15CrMoR Corresponding to American standard ：SA387Gr.12

8、15CrMoR Mechanical and technological properties ：
Steel plate thickness /mm 6~60 >60~100 >100~150
Tensile strength Rm/(N/mm2) 450~590 450~590 440~580
yield strength ReL/(N/mm2) ≥295 ≥275 ≥255
Elongation A/% ≥19 ≥19 ≥19
temperature /℃ 20 20 20
V Type a impact absorbs energy Akv/J ≥47 ≥47 ≥ 47
180o Bend test （b=2a） d=3a d=3a d=3a
9、15CrMoR High temperature mechanical properties ：
Test temperature /℃
The thickness of the /mm 200 250 300 350 400 450 500 （ yield strength σs (MPa) Not less than ）
>20~60 240 225 210 200 189 179 174
>60~100 220 210 196 186 176 167 162
>100~150 210 199 185 175 165 156 150
10、15CrMoR purpose
15CrMoR In the petroleum and petrochemical industry 、 Chemical equipment manufacturing enterprises 、 Power station construction 、 It is widely used in the manufacturing industry of boilers and pressure vessels , 15CrMoR It is mainly used to make reactors 、 Heat exchanger 、 separator 、 sphere 、 Oil and gas tank 、 Liquefied petroleum gas tank 、 Nuclear reactor pressure shell 、 LPG cylinders 、 Turbine volute , Due to petrochemical industry 、 Coal conversion 、 Nuclear power 、 Turbine block 、 Thermal power and other use conditions are harsh , Among them, large-scale equipment with complex corrosive medium, such as ： Water washing tower 、 The second converter 、 Coke drum 、 Desulfurization tank 、 Reforming gas waste heat boiler 、 Methanation furnace 、 Reactor 、 a regenerator 、 Hydrogenation reactor 、 Methanation heater 、 Conversion gas steam generator and other equipment and component construction and manufacturing projects , A lot of use 15CrMoR or 15CrMoR Hydrogen 、15CrMoR（H） The steel plate . Exporting to the United States 、 Canada 、 Australia 、 India 、 The future of Europe is promising . It has been directly supplied to European customers 20000 tons .