This standard specifies the dimensions, shape, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of quenched and tempered high-strength steel plates for pressure vessels. This standard is applicable to quenched and tempered high-strength steel plates with a thickness of 12mm-60mm for pressure vessels. GB 19189-2003 Quenched and tempered high-strength steel plates for pressure vessels GB19189-2003 Standard download decompression password: www.bzxz.net

ICS77.14050
National Standard of the People's Republic of ChinawwW.bzxz.Net
GB19189-2003
Quenched and tempered high strength steel plate for pressure air vessels
Quenched
Published on 2003-06-16
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People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
urevess els
2004-01-01 Real brand
All technical contents of this standard are mandatory. Foreword
GB19189-2003
This standard is not equivalent to the corresponding part of JISG3115-2000 "Steel Plate for Pressure Vessels". There are mainly the following differences in technical requirements
1. According to the different properties of steel, three grades with the highest strength corresponding to SPV490 are specified! 1. Among the steels, the quality requirements are more stringent: the welding of steel should be reduced. The Pcm value of the silver inductive composition is reduced. The sampling method for the impact test is changed from the general method to the general method. The test temperature is changed from -10℃ to -40℃~-10℃. The copper types covered by this standard 07MnCrMoVR, 07MnNiMoVDR are low welding inductance steels, and 12MnNiVR is for high wire energy welding (welding wire energy 100lJ/cm2). This standard was proposed by the former State Metallurgical Industry Bureau and was revised by the National Metallurgical Industry Technical Committee on 23 March 2011. This standard was drafted by: Wuhan Iron and Steel (Group) Corporation, China National Metallurgical Engineering Corporation, Metallurgical Industry Information Standards Research Institute, Hefei General Machinery Research Institute,
This standard is mainly drafted by
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1 China
Quenched and tempered high-strength steel plate for pressure vessels
GB19189--2003
This standard defines the size, appearance, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of quenched and tempered high-strength steel plate for pressure vessels.
This standard is applicable to quenched and tempered high-strength steel plate with a thickness of 2g to 60g for pressure vessels. 2 Normative references The following documents are the references to this standard. All amendments (excluding those due to errors) or revisions issued on the date of this standard are not applicable to this standard. However, the parties to the agreement on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions shall apply to this standard. GB/T 222-1984 Chemical analysis of samples Sampling requirements and chemical composition GB/T 223.3 Methods for chemical analysis of iron, steel and alloys - Determination of the content of steel and composite materials by gravimetric method - Methane, phosphate and aluminum phosphate gravimetric method G/T 223.11 GB/T 223.14 GB/T 223.18 GB/T 223.19 GB/T 223. 223.23
GB/T223.24
GB/T223.26
GBVT223.27
GB/T223.54
Chemical analysis of steel and alloys
GB/T223.58
Methods for chemical analysis of steel and alloys
GB/T223.59
GBT223.60
GB/T223.61
GB/T223.62
GB/T 223.63
GB/T223.64
GB/T 223.67
GE/T223.68
GB/T223.69
GB/T 223.71
Methods for chemical analysis of copper and alloys
Methods for chemical analysis of iron and steel and alloys
Methods for chemical analysis of copper, iron and alloys
Methods for chemical analysis of copper, iron and alloys
Methods for chemical analysis of copper, iron and alloys
Methods for chemical analysis of copper, iron and alloys
Methods for chemical analysis of copper, iron and alloys
Methods for chemical analysis of iron and steel and alloys
GE/T223.72
GB/T 223.74
GB/T223.75
GE/T223.76
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Method determination quantity
Yude plastic quantity
Light pressure filtration determination sales volume
Dayong service development company said brand quantity
Sub-acid sub-molecular sodium elimination method determination quality green carbon blue light de-adjustment screen quantity
Gaomei Menggu water Kang quantity method determination silicon compound store
Solution of relative business fragrance quantity clean pants quantity
Butyl acetate Determination of phosphorus content by extraction photometry
Determination of phosphorus content by product extraction photometry
Determination of sulfur content by fire roasting absorption spectrometry
Determination of sulfur content by reduction steam explosion-methylene blue photometry after combustion in tubular vat; Determination of sulfur content by potassium nitrate titration after combustion in tubular vat; Determination of sulfur content by gas volumetry after combustion in tubular vat; Determination of sulfur content by gravimetric method after combustion in tubular vat; Determination of sulfur content by alumina chromatography-mass spectrometry after combustion in tubular vat; Determination of sulfur content by gravimetric method after combustion in tubular vat; Chemical analysis methods for steel and alloys
Determination of non-compound weight
Chemical analysis methods for steel and alloys||t t||Methanol steam hall-curcumin photometric determination method of copper, iron and alloy chemical analysis method
Quantitative method of large shrinkage light
GB/T226-1987 Tensile test method for metal
GB/T229
GBT232
Charpy impact test method for all metals
Metal material bending test method
GB191892003
Standards for acceptance, packaging, marking and quality certification of steel plates and steel strips GB/T247
GB/T709
Dimensions, external quality and allowable deviations of hot-oxidized steel electrodes and fine strips GB/T2975 Sampling location and test sample preparation for mechanical properties test of copper and copper products GB6654-1996 Steel plates for pressure vessels
Pressure vessel non-standard inspection
JB4730
3 Grade indication method
Among the grades listed in this international standard:
一 refers to the first Chinese pinyin letter of the word “压力客器” and D refers to the first Chinese pinyin letter of the word “低”. 4 Dimensions, shape, quality and allowable deviations
4.1 The dimensions, shape and allowable deviations of steel plates shall comply with those specified in GB/709. 4.2 The thickness tolerances of steel plates shall comply with the corresponding provisions of GB6654. 4.3 The theoretical mass of steel plate delivery, the steel plate density used for calculation is 7.85kg/dm, the theoretical mass calculation method shall comply with the provisions of GB6654,
5 Technical requirements
5.1 Brand and chemical composition
5.1.1 Bulletin number and chemical composition number of steel
07MnCrMoVR
OTMaNMoVDR
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Pm is the cost-effective inductive composition , calculated as follows: Q0.
50,025
Pm-C+Si/30+(Mm+Cu+C)/20+Ni/60+Ma/h15+v/10+5B5123
In order to improve the performance, other energy-saving elements outside the table may be added. 5.1.3 If the supplier can ensure that the remaining elements in the steel do not exceed the specified value, the analysis can be omitted. 0.30
The allowable difference in chemical composition of the steel plate shall comply with the requirements of Table 2 in GB/T222-1984. 5.1.5 The supplier shall ensure that the micro-alloying elements other than those listed in Table 1 are included in the Pcm results of the smelting analysis. 5.2 Refining method
The steel plate shall be smelted in an oxygen converter or an electric furnace and shall be vacuum treated. 5.3 Delivery status
53.1 The steel plate shall be delivered in a round heat-treated state, where the tempering degree shall not be less than 600 V
5.3.2 The edge of the steel plate is generally The steel plate shall be delivered in sheared or fire-cut state. If the purchaser requires, the steel plate may be delivered in rough-edged state, but this shall be agreed upon by the purchaser and the purchaser and shall be stated in the contract.
5.4 Mechanical and process properties
The mechanical and process properties of the steel plate shall comply with the requirements of Table 2. Table 2 Mechanical properties and process properties
07MnCrMoVR
07MnNMoVDR
Tensile test
3073:0
616730
61073:0
Station: 2MmNVR The impact test of the plate is carried out by the Western manufacturer, and the impact test (direction) is indicated in the assembly
Finish/C
GB19189—2003
Toxic test
h-2a,180
5.4.2 Charpy impact energy is calculated by the arithmetic mean of the three samples. The impact energy of one of the samples is allowed to be lower than the value specified in Table 2, but it shall not be more than 70% of the specified value
5.5 Surface quality
5.51 The surface of the steel plate shall not be free from double air collection, folding and inclusions The steel plate shall not have delamination. If there are defects on the upper surface, it is allowed to be cleaned. The cleaning depth is calculated from the actual size of the steel plate and shall not exceed half of the thickness tolerance of the steel plate. The minimum thickness of the steel plate shall be guaranteed. The defect cleaning area shall be flat and without calibration.
5.5.2 The thickness of the defect is allowed to not exceed the allowable thickness of the steel plate.
5.6 Ultrasonic testing
The plates shall be subjected to ultrasonic testing one by one.
Special requirements
Negotiation between the supply and demand parties.
Test method
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The sampling quantity, sampling method and test method of each steel plate inspection item shall comply with the provisions of Table 3. Table 3 Test method Inspection items Chemical analysis Ultrasonic measurement Sample quantity/(piece/diameter) (per number) Diamond quality per decade) Working method 6.2.6.3,5.4 GB/T2975 Half of the tolerance, and guarantee defect Test method Use measuring tools with sufficient accuracy GB/T2281-887 GB/T232 GB/T229 JB4730 6.2 The test specimens for tensile, impact and cold bending in Table 2 are allowed to be taken from the same sample, and the sample should be taken from 1/4 of the width of the steel plate. When the length of the plate is less than or equal to 15m, the sample should be cut at one end of the steel plate. When the length of the steel plate is greater than 15m, the sample should be cut at both ends of the steel plate. It is allowed to use shearing or scraping methods to take samples, but the size of the sample must ensure that the sample is away from the processing zone or thermal expansion zone caused by shearing or scraping. 6.3 The axis direction of the tensile, impact and cold bending test specimens shall be perpendicular to the rolling direction of the steel plate: the notch axis of the V-type test specimen shall be perpendicular to the rolled surface of the steel plate. 6.4 For the tensile test of steel plates with a thickness greater than 25mm, the axis of the impact test specimen shall be located at 1/4 of the plate thickness. For the tensile test of steel plates with a thickness ratio less than or equal to 1/4 of the plate thickness, the impact test specimen position shall be the same as the requirements of GB/T2975 standard. For cold bending test specimens of steel plates of all thicknesses, at least one surface shall be reserved as the outer surface of the bending test. 7 Inspection regulations
7.1 The inspection of the plate shall be carried out by the quality supervision department of the supplier, and the purchaser shall have the right to conduct acceptance according to this standard. 7.2 The plates shall be inspected and accepted one by one in batches.
7.3 If the test results of the plate do not meet the requirements of this standard, re-testing may be carried out. 7.3.1 If the impact test results do not meet the requirements of 5.11 of this standard, 8 specimens shall be tested from a plate (same skin) for a while. The arithmetic mean of the impact absorption energy of the two groups of 6 specimens shall not be lower than the specified value. It is allowed that 2 specimens are less than the specified value, and only 1 specimen is allowed to be less than 7% of the specified value. 7.3.2 The re-testing of other inspection items shall comply with the provisions of GB/T247. 8 Packaging, labeling and quality certificate
Langji's packaging, labeling and quality certificate shall comply with the provisions of GB/T247. CAO
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