中华人民共和国国家标准
National Standard of the Peoples Republic of China
GB 6654 1996
压 力 容 器 用 钢 板[Supersedes GB 6654 86GB 6655 - 86]
Steel Plates for Pressure Vessels
1. Scope
This Standard specifies size, profile, technical requirements, test method, inspection rules, packing, marks and quality certificate of steel plates for pressure vessels.
This Standard applies to steel plates with thickness of 6 ~ 120mm used for pressure elements of pressure vessels at medium and ambient temperature.
2. Cited Standards
For cited standards, see Appendix A.
3. Method to Express Brand Number
The R after the brand number listed in this Standard is the first character in Chinese spelling of the word vessel of pressure vessels
4. Size, Profile, Weight and Allowable Deviation
4.1 The size, profile and allowable deviation for steel plates shall meet what specified in GB 709.
4.2 The thickness deviation of the steel plates shall meet what specified in Table 1.
4.3 The steel plates shall be delivered according to theoretical weight. The added value listed in Table 2 of nominal thickness shall be used as theoretical thickness to calculate the weight.
Table 1 Allowable Deviation for Thickness
mm
|
Nominal thickness |
Minus deviation |
Width |
|
600~
750 |
>750~
1000 |
>1000~1200 |
>1200~1500 |
>1500~1700 |
>1700~1800 |
>1800~2000 |
>2000~2300 |
>2300~2500 |
>2500~2600 |
>2600~2800 |
>2800~3000 |
>3000~3200 |
>3200~3400 |
>3400~3600 |
>3600~3800 |
|
Positive deviation |
|
6~7.5 |
0.25 |
0.45 |
0.55 |
0.60 |
0.60 |
0.75 |
0.75 |
0.75 |
0.80 |
|
|
|
|
|
|
|
|
|
>7.5~10 |
0.75 |
0.75 |
0.85 |
0.85 |
0.90 |
0.90 |
0.90 |
1.00 |
1.15 |
1.15 |
1.15 |
|
|
|
|
|
|
>10~13 |
0.75 |
0.75 |
0.85 |
0.85 |
0.95 |
0.95 |
0.95 |
1.05 |
1.25 |
1.25 |
1.25 |
1.55 |
|
|
|
|
|
>13~25 |
|
|
0.75 |
0.75 |
0.85 |
0.95 |
1.15 |
1.35 |
1.35 |
1.55 |
1.65 |
1.75 |
|
|
|
|
|
>25~30 |
|
|
0.85 |
0.85 |
0.95 |
1.05 |
1.25 |
1.45 |
1.55 |
1.65 |
1.75 |
1.85 |
|
|
|
|
|
>30~34 |
|
|
0.95 |
1.05 |
1.05 |
1.15 |
1.35 |
1.55 |
1.65 |
1.75 |
1.95 |
2.05 |
|
|
|
|
|
>34~40 |
|
|
1.15 |
1.25 |
1.35 |
1.45 |
1.55 |
1.75 |
1.85 |
1.95 |
2.15 |
2.25 |
|
|
|
|
|
>40~50 |
|
|
1.35 |
1.45 |
1.55 |
1.65 |
1.75 |
1.95 |
2.05 |
2.15 |
2.35 |
2.45 |
|
|
|
|
|
>50~60 |
|
|
1.65 |
1.75 |
1.85 |
1.95 |
2.05 |
2.15 |
2.15 |
2.25 |
2.35 |
2.55 |
|
|
|
|
|
>60~80 |
|
|
|
|
2.55 |
2.55 |
2.55 |
2.55 |
2.65 |
2.75 |
2.85 |
2.85 |
2.85 |
2.85 |
2.95 |
2.95 |
|
>80~100 |
|
|
|
|
2.95 |
2.95 |
2.95 |
2.95 |
3.05 |
3.05 |
3.05 |
3.15 |
3.15 |
3.15 |
3.15 |
3.15 |
|
>100~120 |
|
|
|
|
3.25 |
3.25 |
3.25 |
3.35 |
3.45 |
3.45 |
3.55 |
3.55 |
3.55 |
3.55 |
3.55 |
3.55 |
Table 2 Added Value of Thickness
mm
|
Nominal thickness |
Width |
|
600~
750 |
>750~
1000 |
>1000~1200 |
>1200~1500 |
>1500~1700 |
>1700~1800 |
>1800~2000 |
>2000~2300 |
>2300~2500 |
>2500~2600 |
>2600~2800 |
>2800~3000 |
>3000~3200 |
>3200~3400 |
>3400~3600 |
>3600~3800 |
|
Added value of thickness to calculate weight |
|
6~7.5 |
0.10 |
0.15 |
0.18 |
0.18 |
0.25 |
0.25 |
0.25 |
0.28 |
|
|
|
|
|
|
|
|
|
>7.5~10 |
0.25 |
0.25 |
0.30 |
0.30 |
0.32 |
0.32 |
0.32 |
0.38 |
0.45 |
0.45 |
0.45 |
|
|
|
|
|
|
>10~13 |
0.25 |
0.25 |
0.30 |
0.30 |
0.35 |
0.35 |
0.35 |
0.40 |
0.50 |
0.50 |
0.50 |
0.65 |
|
|
|
|
|
>13~25 |
|
|
0.25 |
0.25 |
0.30 |
0.35 |
0.45 |
0.55 |
0.55 |
0.65 |
0.70 |
0.75 |
|
|
|
|
|
>25~30 |
|
|
0.30 |
0.30 |
0.35 |
0.40 |
0.50 |
0.60 |
0.65 |
0.70 |
0.75 |
0.80 |
|
|
|
|
|
>30~34 |
|
|
0.35 |
0.40 |
0.40 |
0.45 |
0.55 |
0.65 |
0.70 |
0.75 |
0.85 |
0.90 |
|
|
|
|
|
>34~40 |
|
|
0.45 |
0.50 |
0.55 |
0.60 |
0.65 |
0.75 |
0.80 |
0.85 |
0.95 |
1.00 |
|
|
|
|
|
>40~50 |
|
|
0.55 |
0.60 |
0.65 |
0.70 |
0.75 |
0.85 |
0.90 |
0.95 |
1.05 |
1.10 |
|
|
|
|
|
>50~60 |
|
|
0.70 |
0.75 |
0.80 |
0.85 |
0.90 |
0.95 |
0.95 |
1.00 |
1.05 |
1.15 |
|
|
|
|
|
>60~80 |
|
|
|
|
1.15 |
1.15 |
1.15 |
1.15 |
1.20 |
1.25 |
1.30 |
1.30 |
1.30 |
1.30 |
1.35 |
1.35 |
|
>80~100 |
|
|
|
|
1.35 |
1.35 |
1.35 |
1.35 |
1.40 |
1.40 |
1.40 |
1.45 |
1.45 |
1.45 |
1.45 |
1.45 |
|
>100~120 |
|
|
|
|
1.50 |
1.50 |
1.50 |
1.60 |
1.60 |
1.65 |
1.65 |
1.65 |
1.65 |
1.65 |
1.65 |
1.65 |
5. Technical Requirements
5.1 Brand number and chemical composition
5.1.1 The brand number and chemical composition of steel (smelting composition) shall meet what specified in Table 3.
Table 3 Chemical Composition
|
Brand number |
Chemical composition, % (m/m) |
|
C |
Mn |
Si |
V |
Mo |
Nb |
N |
Cr |
Ni |
S |
P |
|
Not more than |
|
20R |
≤0.20 |
0.40~
0.90 |
0.15~
0.30 |
|
|
|
|
|
|
0.030 |
0.035 |
|
16MnR |
≤0.20 |
1.20~
1.60 |
0.20~
0.55 |
|
|
|
|
|
|
0.030 |
0.035 |
|
15MnVR |
≤0.18 |
1.20~
1.60 |
0.20~
0.55 |
0.04~
0.12 |
|
|
|
|
|
0.030 |
0.035 |
|
15MnVNR |
≤0.20 |
1.30~
1.70 |
0.20~
0.55 |
0.10~
0.20 |
|
|
0.010~
0.020 |
|
|
0.030 |
0.035 |
|
18MnMoNbR |
≤0.22 |
1.20~
1.60 |
0.15~
0.50 |
|
0.45~
0.65 |
0.025~
0.050 |
|
|
|
0.030 |
0.035 |
|
13MnNiMoNbR |
≤0.15 |
1.20~
1.60 |
0.15~
0.50 |
|
0.20~
0.40 |
0.005~
0.020 |
|
0.20~
0.40 |
0.60~
1.00 |
0.025 |
0.025 |
|
15CrMoR |
0.12~
0.18 |
0.40~
0.70 |
0.15~
0.40 |
|
0.45~
0.60 |
|
|
0.80~
1.20 |
|
0.030 |
0.030 |
5.1.1.1 For 20R steel of thickness over 60mm, the upper limit of manganese content may be increased to 1.00%.
5.1.1.2 In case the content of Cr, Ni and Copper is regarded as residual elements, they shall not be > 0.30% and their total content shall not be > 0.60%. In case the supplier can guarantee it, analysis may not be done.
5.1.2 Trace alloy elements may be added to improve performance of 20R and 16MnR.
5.1.3 The allowable deviation for chemical composition of final product of steel plate shall meet what specified in GB 222.
5.2 Method of smelting
Steel is smelted in Martin furnace, oxygen converter and electric furnace. All steels of different brand number are killed steels.
5.3 Delivery status
5.3.1 The delivery status of steel plates shall meet what specified in Table 4. The tempering temperature for 18MnMoNbR, 13MnNiMoNbR and 15CrMoR shall not be lower than 620℃.
Table 4 Physical Performance and Process Performance
|
Brand number |
Delivery status |
Thickness of steel plate, mm |
Tensile test |
Impact test |
Cold bend test |
|
|
Tensile strength,
σb, MPa |
Yield
point, σs,
MPa |
Elongation
δ5, % |
Temperature, ℃ |
V impact power, Akv (transverse), J |
b = 2a
180° |
|
|
Not less than |
Not less than |
|
|
20R |
Hot rolled, normalization of controlled rolling type |
6~16
>16~36
>36~60
>60~100 |
400~520
|
245
235
225
205 |
25 |
20 |
31 |
d = 2a |
|
|
390~510 |
24 |
|
|
16MnR |
6~16
>16~36
>36~60
>60~100
>100~120 |
510~640
490~620
470~600
460~590
450~580 |
345
325
305
285
275 |
21 |
20 |
31 |
d = 2a |
|
|
d = 3a |
|
|
20 |
|
|
15MnVR |
6~16
>16~36
>36~60 |
530~665
510~645
490~625 |
390
370
350 |
19 |
20 |
31 |
d = 3a |
|
|
15MnVNR |
Normalization |
6~16
>16~36
>36~60 |
570~710
550~690
530~670 |
440
420
400 |
18 |
20 |
34 |
d = 3a |
|
|
18MnMoNbR |
Normalization plus tempering |
30~60
>60~100 |
590~740
570~720 |
440
410 |
17 |
20 |
34 |
d = 3a |
|
|
13MnNiMoNbR |
Normalization plus tempering |
≤100
>100~120 |
570~720 |
390
380 |
18 |
0 |
31 |
d = 3a |
|
|
15CrMoR |
Normalization plus tempering |
6~60
>60~100 |
450~590 |
295
275 |
19
18 |
20 |
31 |
d = 3a |
|
5.3.2 As agreed with the demand party, the steel plates of 18MnMoNbR, 13MnNiMoNbR and 15CrMoR with thickness over 60mm may be delivered at the status of annealing and tempering. In this case, the sample blank for test shall be heat treated in accordance with what specified in Table 4. The size of the ample blank shall not be < 3a x 3a x a.(a is thickness of the steel plate.)
5.3.3 Steel plates shall be sheared or flare cut for delivery. However, it may be delivered in the state of rough edges as agreed by both parties of supplier and demander due to the restriction of equipment capacity, and it shall be noted in the contract.
5.4 Physical and process performance
5.4.1 The results of tensile test, , Charpy (V notch) impact test and cold bend test of steel plates shall meet what specified in Table 4. The cold bend test shall be done to steel plates with thickness over 60mm if it is specified in the contract.
5.4.1.1 For steel plates of 6mm ~ 8mm 15MnR used for lamination plate, the tensile strength shall be 550 ~ 690 Mpa.
5.4.1.2 As requested by the demander and specified in the contract, the V notch impact power at ambient temperature for 20R, 16MnR, 15MnVR steels may be at 34J for delivery while for 15MnVNR, 18MnMoNbR, at 41J.
5.4.1.3 As agreed by both parties of the supplier and the demander, the V notch impact test may be done at - 20℃for 16MnR and the impact power shall not be <24J.
5.4.2 The , Charpy (V notch) impact power shall be calculated as arithmetic mean of 3 test samples. It is allowable that the individual value for one of 3 samples may be lower than what specified in Table 4, however, it shall not be lower than 70% of specified value.
5.4.3 For , Charpy (V notch) impact test to steel plates with thickness < 12mm, aided test sample shall be used. For 6mm ~ 8mm steel plates, the size is 5mm x 10mm x 55mm. The test result shall not be < 50% of specified value in Table 4. For >8mm ~ 11mm steel plates, the size is 7.5 mm x 10mm x 55mm. The test result shall not be < 75% of value specified in Table 4.
5.4.4 High temperature tensile test
Specially requested by the demander and agreed by two parties, a high temperature tensile test may be done to steel plates of thickness over 20mm and the test temperature shall be specified in the contract. The value of yield point at high temperature shall meet what specified in Appendix B.
5.5 Ultrasonic testing
5.5.1 Ultrasonic testing may be done to steel plates on demanders request.
5.5.2 If requested by the demander, the class for qualification in ultrasonic testing shall be agreed by two parties and specified in the contract.
5.6 Surface quality
5.6.1 No crack, air bubble, scar, folding or slag inclusion shall be allowable to surfaces of steel plates.
In case above said defect exit, it is allowed to treat them. The depth to treat shall not exceed half of tolerance for thickness of the steel plate calculated from the actual size of the steel plate and the minimum thickness of the steel plate shall be guaranteed. The place where the defect is treated shall be smooth without any sharp corner.
5.6.2 Other defects are allowable to exist. However, the depth shall not exceed half of allowable tolerance for thickness of the steel plate calculated from the actual size of the steel plate and the thickness at the place of defect shall be guaranteed that it does not exceed the minimum allowable thickness of the steel plate.
6. Test Method
The items for inspection, the quantity of test samples and the way for sampling as well as test method for each batch of steel plates shall meet what specified in Table 5.
7. Rules for Inspection
7.1 The inspection and acceptance of steel plates shall be done by technical supervision department of the supplier.
7.2 Steel plates shall be inspected and accepted in batches. Steel plates of same furnace number, same thickness and same heat treatment way shall make up one batch. For the steel plates of thickness of 6 ~ 16mm, the weight of the steel plates in each batch shall not be > 15t while for steel plates of thickness over 16mm, the weight in each batch shall not be > 25t.
Table 5 Test Method
|
Sequence No. |
Items to test |
Quantity of test sample (piece) |
Sampling method |
Test method |
|
1 |
Chemical analysis |
1 (each furnace number) |
GB 222 |
GB 223 |
|
2 |
Tensile |
1 |
GB 2975 |
GB228 |
|
3 |
Cold bend |
1 |
GB 232 |
|
4 |
Impact at ambient temperature |
3 |
GB2106 |
|
5 |
Impact at low temperature |
3 |
GB4159 |
|
6 |
Tensile at high temperature |
1 (each furnace number) |
GB4338 |
|
7 |
Ultrasonic testing |
|
|
GB/T 2970 |
7.3 On request of the demander and agreed by both parties, physical performance test may be done to steel plates of thickness over 16mm piece by piece.
7.4 For steel plates of thickness over 60mm, the test sample for tensile test and impact test shall be taken at 1/4 of thickness (the distance from the axis of the test sample and one rolled face).
7.5 In case the sample blank is used to make test sample for physical performance, the axis of the test sample shall be at 1/4 of the distance away from the surface of sample blank. The distance from the location of the test sample to each side of sample blank shall not be < thickness of the steel plate. However, the head (or holding part) of the test sample for tensile test is not limited by this.
7.6 In case any item in the test of steel plates does not meet requirements of this Standard, re-test shall be made.
7.6.1 In case the result of Charpy (V notch) impact test does not meet what specified in 5.4.2 or 5.4.3, another 3 test samples shall be taken for test from same steel plate ( or same sample blank). The average value of 6 samples of first and later groups shall not be < specified values. It is allowable that the values of 2 test samples may be < specified values, however, in which only one sample is allowable to be < 70% of specified value.
7.6.2 The re-test of other items shall meet what specified in GB 247.
8. Packing, Marks and Quality Certificates
The packing, marks and quality certificates for steel plates shall meet what specified in GB 247.
Appendix A
(Appendix of this Standard)
Cited Standards
Provisions in following standards, referred by this Standard, have constituted provisions of this Standard. At publishing of this Standard, the referred editions are still in force. Any standard may be revised. Any user of this Standard shall study the possibility of using the new edition of following standards.
GB 222 84 Method for Sampling the Test Sample for Chemical Analysis of Steel and Allowable Deviation for Chemical Composition of Final Products
GB 223.3 88 Method for Chemical Analysis of Steel and Alloy Measuring Phosphorous Content with Method of diantipyrine methane-molybdophosphoric acid Weight
GB 223.4 - 88 Method for Chemical Analysis of Steel and Alloy Measuring Manganese Content with Method of Ammonium Nitrate Oxidation Capacity
GB/T223. 11 - 91 Method for Chemical Analysis of Steel and Alloy Measuring Chromium Content with Method of Ammonium Supersulfate Oxidation Capacity
GB 223. 14 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Vanadium Content with Photometry of Tantalum Test Agent Extraction
GB/T 223.16 - 91 Method for Chemical Analysis of Steel and Alloy Measuring Titanium Content with Photometry of Colored Acid
GB 223.17 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Titanium Content with Photometry of diantipyrine methane
GB 223.18 - 94 Method for Chemical Analysis of Steel and Alloy Measuring Copper Content with Method of Sodium Thiosulfate Iodine Quantity
GB 223.19 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Copper Content with Photometry of neocuproine-trichloromethane Extraction
GB/T 223.23 - 94 Method for Chemical Analysis of Steel and Alloy Measuring Nickel Content with Direct Photometry of nickel diacetyldioxine
GB/T 223.24 - 94 Method for Chemical Analysis of Steel and Alloy Measuring Nickel Content with Method of diacetyldioxine-trichloromethance. Extraction
GB 223.26- 89 Method for Chemical Analysis of Steel and Alloy Measuring Molybdenum Content with Direct Photometry of thiocyanate
GB 223.27 - 84 Method for Chemical Analysis of Steel and Alloy Measuring Molybdenum Content with Photometry of thiocyanate-butyl butyrate Extraction
GB 223.36- 85 Method for Chemical Analysis of Steel and Alloy Measuring Nitrogen Content with Method of Distillation Separation Capacity.
GB 223.37 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Nitrogen Content with Photometry of Distillation Separation Indigo
GB 223.39 - 85 Method for Chemical Analysis of Steel and Alloy Measuring Niobium Content with Photometry of chlorosulfophenol S
GB 223.40- 85 Method for Chemical Analysis of Steel and Alloy Measuring Niobium Content with Photometry of Ion Exchanging and Separation chlorosulfophenol S.
GB 223.54 - 87 Method for Chemical Analysis of Steel and Alloy Measuring Nickel Content with Spectro-photometry of Flame Atom Absorption
GB 223.58 - 87 Method for Chemical Analysis of Steel and Alloy Measuring Manganese Content with Method of Titration of Sodium arsenite-Sodium nitrite
GB 223.59 - 87 Method for Chemical Analysis of Steel and Alloy Measuring Phosphorous Content with Photometry of antimono phosphoro molybdo-blue
GB 223.60 - 87 Method for Chemical Analysis of Steel and Alloy Measuring Silicon Content with Method of Dehydration Weight of Perchloric Acid
GB 223.61 - 87 Method for Chemical Analysis of Steel and Alloy Measuring Phosphorous Content with Method of ammonium molybdophosphorate Capacity
GB 223.62- 87 Method for Chemical Analysis of Steel and Alloy Measuring Phosphorous Content with Photometry of butyl acetate Extraction
GB 223.63- 88 Method for Chemical Analysis of Steel and Alloy Measuring Manganese Content with Photometry of Sodium (polassium) periodate
GB 223.64 - 88 Method for Chemical Analysis of Steel and Alloy Measuring Manganese Content with Spectrum Method of Flare Atom Absorption
GB 223.67 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Sulfur Content with Photometry of Reduction-distillation methenyl-blue
GB 223.68 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Sulfur Content with Method of Burnt potassium iodate Capacity
GB 223.69 - 89 Method for Chemical Analysis of Steel and Alloy Measuring Carbon Content with Method of Burnt Gas Capacity
GB/T 223.71 - 91 Method for Chemical Analysis of Steel and Alloy Measuring Carbon Content with Method of Burnt Weight
GB/T 223.72 -91 Method for Chemical Analysis of Steel and Alloy Measuring Carbon Content with Method of Aluminum Oxide Chromatogram-Barium Sulfate
GB/T 223.74 - 91 Method for Chemical Analysis of Steel and Alloy Measuring Content of Non-combined Carbon with Method of Burnt Weight or Burnt Gas Capacity
GB/T 223.76 - 94 Method for Chemical Analysis of Steel and Alloy Measuring Vanadium Content with Spectrumgraph of Flare Atom Absorption
GB 228 87 Metal Tensile Test Method
GB/T 229 94 Metal Charpy notch Impact Test Method
GB 232 82 Metal Bend Test Method
GB 247 88 General Rules for Inspection and Acceptance, Packing, Marks and Quality Certificate of Steel Plates and Steel Strips
GB 709 88 Size, Profile, Weight and Allowable Deviation for Hot Rolled Steel Plates and Steel Strips
GB/T 2970 91 Method for Ultrasonic Testing of Medium Thick Steel Plates
GB 2975 82 Regulations for Sampling for Physical and Process Performance Test of Steel Products
GB 4338 84 Method for Tensile Test of Metals at High Temperature.
Appendix B
(Appendix of this Standard)
High Temperature Performance of Steel Plates for
Pressure Vessels
B1 For specified residue tensile stress at high temperature (σr0..2 ), see Table B1.
Table B1
|
Brand number |
Thickness |
σr0..2, at following temperature (℃), MPa |
|
Not less than |
|
200 |
250 |
300 |
350 |
400 |
450 |
500 |
|
20R |
21~36 |
186 |
167 |
153 |
139 |
129 |
121 |
|
|
>36~60 |
178 |
161 |
147 |
133 |
123 |
116 |
|
|
>60~100 |
164 |
147 |
135 |
123 |
113 |
106 |
|
|
16MnR |
21~36 |
255 |
235 |
215 |
200 |
190 |
180 |
|
|
>36~60 |
240 |
220 |
200 |
185 |
175 |
165 |
|
|
>60~100 |
225 |
205 |
185 |
175 |
165 |
155 |
|
|
>100~120 |
220 |
200 |
180 |
170 |
160 |
150 |
|
|
15MnVR |
21~36 |
295 |
280 |
260 |
240 |
220 |
205 |
|
|
>36~60 |
280 |
265 |
245 |
225 |
210 |
195 |
|
|
15MnVNR |
21~36 |
340 |
315 |
290 |
270 |
250 |
235 |
|
|
>36~60 |
320 |
300 |
275 |
255 |
235 |
220 |
|
|
18MnMoNbR |
30~60 |
380 |
370 |
360 |
350 |
335 |
315 |
|
|
>60~100 |
360 |
350 |
340 |
330 |
315 |
295 |
|
|
13MnNiMoNbR |
30~100 |
355 |
350 |
345 |
335 |
305 |
|
|
|
>100~120 |
345 |
340 |
335 |
325 |
300 |
|
|
|
15CrMoR |
21~60 |
240 |
225 |
210 |
200 |
189 |
179 |
174 |
|
>60~100 |
220 |
210 |
196 |
186 |
176 |
167 |
162 |
|
