CN114318110A - Production method of hydrogen induced cracking resistant 12Cr2Mo1R steel plate - Google Patents
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- CN114318110A CN114318110A CN202111589914.2A CN202111589914A CN114318110A CN 114318110 A CN114318110 A CN 114318110A CN 202111589914 A CN202111589914 A CN 202111589914A CN 114318110 A CN114318110 A CN 114318110A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 153
- 239000010959 steel Substances 0.000 title claims abstract description 153
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000001257 hydrogen Substances 0.000 title claims abstract description 52
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 52
- 238000005336 cracking Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 98
- 238000005096 rolling process Methods 0.000 claims abstract description 45
- 238000007670 refining Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000009489 vacuum treatment Methods 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 42
- 238000005266 casting Methods 0.000 claims description 22
- 229910052786 argon Inorganic materials 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 21
- 238000010791 quenching Methods 0.000 claims description 21
- 230000000171 quenching effect Effects 0.000 claims description 21
- 238000005496 tempering Methods 0.000 claims description 20
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- 239000011572 manganese Substances 0.000 claims description 12
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 11
- 230000035945 sensitivity Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention discloses a production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate, and belongs to the technical field of ferrous metallurgy. The production method comprises the working procedures of refining, VD vacuum treatment, pouring, rolling and heat treatment; in the refining process, C and Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.07-0.08%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.5-0.7%. The 12Cr2Mo1R steel plate produced by the invention has the yield strength of 390-.
Description
Technical Field
The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate.
Background
For petrochemical equipment in a hydrogen environment or a wet hydrogen sulfide environment, equipment accidents due to hydrogen corrosion are very likely to occur. The hydrogen corrosion induced cracking is mainly hydrogen bubbling, hydrogen induced cracking, hydrogen sulfide stress corrosion cracking and stress-oriented corrosion cracking, wherein the hydrogen induced cracking has the highest occurrence probability.
The mechanism for causing the hydrogen induced cracking of the steel plate is mainly divided into three stages. In the first stage, hydrogen enters steel and stays at an inclusion interface, and dissolved hydrogen is changed into hydrogen molecules, so that the volume expands, and internal stress is generated at the position; in the second stage, due to the increase of hydrogen partial pressure, lattice plastic deformation is caused, and defects such as dislocation, holes and the like in the lattice are increased, so that the hydrogen is further gathered at the position; and in the third stage, when the pressure generated by the concentration of hydrogen at the gathering part exceeds the elastic deformation capacity of the interface at the gathering part, permanent deformation is generated, hydrogen damage cracks distributed along the inclusion direction are formed, and the hydrogen damage cracks become the origin of hydrogen induced cracking.
If equipment has hydrogen-induced cracks, chemical leakage and even explosion danger are easily caused, so that not only is great economic loss caused, but also serious social harm is caused. For a 12Cr2Mo1R steel plate, the standard requirement is that the steel plate contains 0.3-0.6% of Mn element, the content of the S element must be strictly controlled for reducing the content of MnS inclusion, because the alloy element of the steel plate exceeds 4%, the S element is greatly controlled in the smelting process, more MnS inclusion is produced, and Al produced in the smelting deoxidation process is added2O3Inclusions which are not favorable for the hydrogen induced cracking resistance of the steel sheet; in addition, in the casting process of the steel, point-density defects such as loose and shrinkage holes and the like are easy to occur at a dead head, and the occurrence probability of hydrogen induced cracks is increased to a certain extent due to the point-density defects; when the 12Cr2Mo1R steel plate is cooled after rolling, the steel plate structure is relatively disordered due to the segregation of alloy elements, and the possibility of hydrogen induced cracking of the steel plate is increased. Therefore, for the 12Cr2Mo1R steel plate, the difficulty of ensuring the hydrogen induced cracking resistance is high.
Therefore, the invention starts from the processes of component control, smelting, rolling and heat treatment and improves the hydrogen-induced cracking resistance of the 12Cr2Mo1R steel plate.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate, and the invention starts from the links of smelting, rolling, heat treatment and the like and improves the hydrogen induced cracking resistance of the 12Cr2Mo1R steel plate.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment; in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.07-0.08%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.05-0.07%.
In the refining process, the lime consumption is 1.2-1.5kg/t steel, and the S content of the finished molten steel is controlled to be less than or equal to 0.005 percent.
In the refining process, 5-9kg of medium manganese alloy per ton of steel is added, and the Mn content of the finished molten steel is controlled to be 0.40-0.50%.
According to the VD vacuum treatment process, the argon pressure in the vacuum process is 0.4-0.6MPa, soft blowing is performed after vacuum breaking, and the argon pressure in the soft blowing process is 0.1-0.2 MPa.
According to the casting process, after the steel ingot is cast, demoulding is carried out for 30-40 hours, and after demoulding, stacking is carried out for 25-30 hours.
In the rolling procedure, a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 30-40 mm.
In the heat treatment process, the heat treatment adopts quenching and tempering, wherein the quenching temperature is 920-.
The thickness of the steel plate produced by the method is 110-200 mm.
The steel plate produced by the method has the yield strength of 390-450MPa, the tensile strength of 540-600MPa and the impact absorption energy at-30 ℃ of not less than 120J.
The steel plate produced by the method disclosed by the invention completely meets the HIC performance I-level standard specified in GB/T713-2014, wherein the Crack Sensitivity Rate (CSR) is less than or equal to 0.4%, the Crack Length Rate (CLR) is less than or equal to 3%, and the crack width rate (CTR) is less than or equal to 1%.
According to the production method, the C + Al composite deoxidation is adopted, so that the molten steel can be further purified, the inclusion in the molten steel is reduced, and the internal quality of the molten steel is improved; the lime consumption is accurately controlled in the refining process, and when the hydrogen induced cracking sensitivity of the steel plate is reduced by removing S, secondary oxidation of molten steel is avoided by lime slagging; adding a certain amount of medium manganese alloy, controlling the content of Mn in the molten steel, and reducing MnS inclusions; the argon pressure is accurately controlled in the vacuum and soft blowing processes, so that inclusions can be ensured to fully float upwards, molten steel is further purified, the content of the inclusions in the molten steel is reduced, the inclusions in a steel plate are prevented from exceeding the standard, and the hydrogen induced cracking resistance of the steel plate is improved. After the steel ingot is cast, the demolding and stacking time is prolonged, so that the phenomenon of ingredient segregation in the steel ingot can be improved; the rolling process with large reduction is adopted in the rolling process, so that defects such as looseness, shrinkage cavities and the like can be pressed, the structure is improved, and the processes are all used for improving the internal quality of the steel plate and improving the hydrogen induced cracking resistance of the steel plate; the quenching and tempering process is adopted in the heat treatment process, and the structure of the steel plate is homogenized again after the steel plate is quenched and tempered, so that the performance of the steel plate is ensured, and the hydrogen induced crack resistance of the steel plate is improved.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: 1. the thickness of the rolled steel plate is 110-200 mm; 2. the steel plate has the properties which all meet GB/T713-2014 and are uniform and good, the yield strength is 390-450MPa, the tensile strength is 540-600MPa, and the impact absorption energy at-30 ℃ is more than or equal to 120J; 3. the steel plate completely meets the I-grade standard of Hydrogen Induced Cracking (HIC) resistance specified in GB/T713-2014, wherein the Crack Sensitivity Rate (CSR) is less than or equal to 0.4 percent, the Crack Length Rate (CLR) is less than or equal to 3 percent, and the crack width rate (CTR) is less than or equal to 1 percent.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example 1
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.07%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.05%. In the refining process, the lime consumption in the refining process is 1.2kg/t steel, and the S content of the finished molten steel is controlled to be 0.005 percent; adding 5kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.40%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.4MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.1 MPa;
3) the casting process comprises the steps of demoulding 30 hours after the steel ingot is cast, and stacking for 25 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 30 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 920 ℃, and the tempering temperature is 700 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 2
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.08%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.07%. In the refining process, the lime consumption in the refining process is 1.5kg/t steel, and the S content of the finished molten steel is controlled to be 0.003%; adding 9kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.50%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.6MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.2 MPa;
3) the casting process comprises the steps of demoulding after the steel ingot is cast for 40 hours, and stacking for 30 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 40 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 940 ℃, and the tempering temperature is 720 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 3
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.074%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.06%. In the refining process, the lime consumption in the refining process is 1.3kg/t steel, and the S content of the finished molten steel is controlled to be 0.002%; adding 6kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.45%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.45MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.12 MPa;
3) the casting process comprises the steps of demoulding 35 hours after the steel ingot is cast, and stacking for 29 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 35 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 926 ℃, and the tempering temperature is 715 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 4
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.072%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.063%. In the refining process, the lime consumption in the refining process is 1.24kg/t steel, and the S content in the finished molten steel is controlled to be 0.002%; adding 7kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.42%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.48MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.15 MPa;
3) the casting process comprises the steps of demoulding after the steel ingot is cast for 36 hours, and stacking for 26 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 31 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 934 ℃, and the tempering temperature is 719 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 5
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.076%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.054%. In the refining process, the lime consumption in the refining process is 1.36kg/t steel, and the S content in the finished molten steel is controlled to be 0.001 percent; adding 5.6kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.49%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.56MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.18 MPa;
3) the casting process comprises the steps of demoulding 31 hours after the steel ingot is cast, and stacking 27 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 39 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 930 ℃, and the tempering temperature is 703 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 6
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.078%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.062%. In the refining process, the lime consumption in the refining process is 1.48kg/t steel, and the S content of the finished molten steel is controlled to be 0.003%; adding 6.3kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.41%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.41MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.17 MPa;
3) the casting process comprises the steps of demoulding 35 hours after the steel ingot is cast, and stacking for 29 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 34 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 931 ℃, and the tempering temperature is 720 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 7
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.072%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.054%. In the refining process, the lime consumption in the refining process is 1.42kg/t steel, and the S content of the finished molten steel is controlled to be 0.004%; adding 8.4kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.48%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.59MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.16 MPa;
3) the casting process comprises the steps of demoulding 39 hours after the steel ingot is cast, and stacking for 25 hours after demoulding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 38 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 924 ℃, and the tempering temperature is 713 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Example 8
A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate comprises the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
1) and in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.071%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.063%. In the refining process, the lime consumption in the refining process is 1.4kg/t steel, and the S content of the finished molten steel is controlled to be 0.002%; adding 8kg/t medium manganese alloy steel, and controlling the Mn content of the finished molten steel to be 0.44%;
2) and VD vacuum treatment, wherein the argon pressure in the vacuum process is 0.55MPa, soft blowing is carried out after vacuum breaking, and the argon pressure in the soft blowing process is 0.13 MPa;
3) and a casting process, demolding after the steel ingot is cast for 37 hours, and stacking for 28 hours after demolding;
4) rolling, wherein a low-speed large-reduction rolling process is adopted in the rolling process, and the maximum reduction is 32 mm;
5) and a heat treatment process, wherein the heat treatment adopts quenching and tempering, the quenching temperature is 936 ℃, and the tempering temperature is 706 ℃.
The steel plate produced by the method of the embodiment completely meets the HIC performance I-level standard specified in GB/T713-2014, and the thickness and the specific performance of the steel plate are shown in Table 1.
Table 1 examples 1-8 steel sheet thicknesses and properties
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (10)
1. A production method of a hydrogen induced cracking resistant 12Cr2Mo1R steel plate is characterized by comprising the working procedures of refining, VD vacuum treatment, casting, rolling and heat treatment;
in the refining process, C + Al composite deoxidation is adopted, C powder is added until the content of C in the molten steel is 0.07-0.08%, then Al deoxidation is adopted, and an Al wire is fed until the content of Al in the molten steel is 0.05-0.07%.
2. The production method of the hydrogen induced cracking resistant 12Cr2Mo1R steel plate as claimed in claim 1, wherein in the refining process, the lime consumption is 1.2-1.5kg/t steel, and the S content of the finished molten steel is controlled to be less than or equal to 0.005%.
3. The method for producing the hydrogen induced cracking resistant 12Cr2Mo1R steel plate according to claim 2, wherein in the refining process, 5-9kg/t of medium manganese alloy is added, and the Mn content of the finished molten steel is controlled to be 0.40-0.50%.
4. The method for producing the hydrogen induced cracking resistant 12Cr2Mo1R steel plate according to claim 1, wherein in the VD vacuum treatment process, the argon pressure in the vacuum process is 0.4-0.6MPa, soft blowing is performed after vacuum breaking, and the argon pressure in the soft blowing process is 0.1-0.2 MPa.
5. The production method of the hydrogen induced cracking resistant 12Cr2Mo1R steel plate according to claim 1, wherein in the casting process, the steel ingot is demoulded after 30-40h of casting, and is stacked for 25-30h after demould.
6. The method for producing the hydrogen induced cracking resistant 12Cr2Mo1R steel plate according to claim 1, wherein in the rolling procedure, a low-speed large-reduction rolling process is adopted, and the maximum reduction is 30-40 mm.
7. The method for producing a hydrogen induced cracking resistant 12Cr2Mo1R steel plate as claimed in claim 1, wherein the heat treatment process comprises quenching and tempering, the quenching temperature is 920-940 ℃, and the tempering temperature is 700-720 ℃.
8. The method for producing a hydrogen induced cracking resistant 12Cr2Mo1R steel sheet as claimed in claims 1-7, wherein the thickness of the steel sheet produced by the method is 110-200 mm.
9. The method for producing a hydrogen induced cracking resistant 12Cr2Mo1R steel plate as claimed in any one of claims 1 to 7, wherein the yield strength of the steel plate produced by the method is 390-450MPa, the tensile strength is 540-600MPa, and the impact absorption energy at-30 ℃ is not less than 120J.
10. The production method of the hydrogen induced cracking resistant 12Cr2Mo1R steel plate as claimed in any one of claims 1 to 7, wherein the steel plate produced by the method satisfies all HIC performance class I standards specified in GB/T713-2014, wherein the crack sensitivity CSR is less than or equal to 0.4%, the crack length CLR is less than or equal to 3%, and the crack width CTR is less than or equal to 1%.
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