JIS-B-8241-1989-R2007-ENG.pdf
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1、J I S B*824L 89 M 4933b08 O020928 b M JIS -+ - - _ UDC 621.642.036:669.14 JAPANESE INDUSTRIAL STANDARD Seamless Steel Gas Cylinders JIS B 8 2 4 1 - 1 9 8 9 Translated and Published by Japanese Standards Association Printed in Japan 15 S Copyright Japanese Standards Association Provided by IHS under
2、license with JSALicensee=IHS Employees/1111111001, User=Gearhard, Marcus Not for Resale, 06/01/2007 02:19:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*824E 89 W 4933bOtl 0020927 8 W In the event of any doubt arising, the original Standard in Japanese is to be
3、final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Gearhard, Marcus Not for Resale, 06/01/2007 02:19:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8241 89 4933688 0020930 4 I d
4、) o P + 7 UDC 621.642.036:669.14 JAPANESE INDUSTRIAL STANDARD J I S Seamless Steel Gas Cylinders B 8241-1989 1. ScoDe This Japanese Industrial Standard specifies the seamless steel gas cylinders for high pressure gases, hereinafter referred to as the kylinders“, that have a water capacity exceeding
5、1.0 I but not exceeding 700.0 c. Remarks 1. For the purpose of this Standard, the term “high pressure gases“ means compressed gases and liquefied gases. (3 (4 2. The units and numerical values given in based on the traditional unit system and are appended for informative reference. in this Standard
6、are Definitions For the purpose of this Standard, the following definitions apply: compressed gas hereinafter the same rule applies) of 10 bar io kgf/cmZ or over at a temperature of 35C. A compressed gas under a pressure (gauge pressure, liquefied gas over at a temperature of 40C. hydrogen cyanide a
7、re included in the liquefied gases in this Standard. A liquefied gas under a pressure of 2 bar 2 kgf/cm* or Liquefied ethylene oxide and liquefied hydraulic test pressure of the finished cylinder and to be used for the thickness calculation of the The pressure to be applied to the hydraulic test cyl
8、inder. maximum filling pressure is permitted to fill a cylinder with a permanent gas at a temperature of The maximum value of pressure under which it 35C. pressure of the cylinder. hydraulic test pressure given in Table 4. For compressed gas, this is equal to 3/5 f the hydradic test For liquefied ga
9、ses, it is equal to 3/5 of the calculated thickness of cylinderical shell Thickness set up by calculation so that the stress produced on the cylinderical shell of the cylinder under hydraulic test pressure does not exceed the allowable stress of the material to be used. minimum thickness of cylinder
10、ical shell calculated thickness to be guaranteed by the cylinder manufacturer making Thickness not less than the - allowances for the pads attendant upon cylinder production. Applicable Standards and Reference Standard: See page 26. Copyright Japanese Standards Association Provided by IHS under lice
11、nse with JSALicensee=IHS Employees/1111111001, User=Gearhard, Marcus Not for Resale, 06/01/2007 02:19:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S 888243 89 = 4933b08 0820933 b 2 B 8241-1989 3. Classification The classification of the cylinders according to the
12、materials used and heat treatments shall be as given in Table 1. Table 1. Classification Classification Class 1 Carbon steel cylinder Class 2 Class 1 Manganese steel cylinder Class 2 Chromium molybdenum steel cylinder Nickel chromium molybde- num steel cylinder Class 1 Class 2 Austenitic stainless s
13、teel cylinder Austenitic ferritic stainless steel cylinder Material used Carbon steel having a carbon content of 0.25 % or less Carbon steel having a carbon content of 0.33 % or less Manganese steel Chromium molybdenum steel Nickel chromium molybdenum steel Austenitic stainless steel Austenitic ferr
14、itic stainless steel Heat treatment Annealing or normalizing Either normalizing ar normalizing and tempering Quenching and tempering Quenching and tempering Quenching and tempering No heat treatment Solution treatment Solution treatment 4 . Design 4.1 Minimum Thickness of Cylindrical Shell The thick
15、ness of the cylindrical shell of the cvlinder shall be not less than the value calculated from the following formula using “the allowable stress given in Table 2 (calculated thickness of cylindrical shell), provided that the minimum value for all the cylinders shall be the value given in Table 3. Co
16、pyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Gearhard, Marcus Not for Resale, 06/01/2007 02:19:38 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 8241-1989 Classification Class 1 Class 2 Class 1 Cla
17、ss 2 Chromium molybdenum steel cylinder Carbon steel cylinder Manganese steel cylinder . where t : calculated thickness of cylindrical shell (mm) D : outside diameter (mm) Allowable stress Tensile strength x 5/12 Tensile strength x 5/9 Yield point or proof stress x 5/6 Yield point or proof stress x
18、5/6 d : inside diameter (mm) s : allowable stress (N/mm2) (kgf/mm2) (as specified in Table 2) P : hydraulic test pressure (bar) ( kgf/cm2 (as specified in Table 4) Table 2. Allowable Stress for Cylinder Nickel chromium molybdenum steel cylinder Yield point or proof stress Over 125 Numerical value of
19、 proof stress x 9/10 or tensile strength x 5/12 whichever is the smaller Austenitic stainless steel cylinder D/250 t 1 Proof stress x 5/6 I Austenitic ferritic stainless steel cylinder I Remarks 1. Either yield point or proof stress and tensile strength shall be the values guranteed by the cylinder
20、manufacturer. 2. Yield point or proof stress for designing the cylinders to be subjected to quenching and tempering shall be a maximum of 85 % of the tensile strength guranteed by the cylinder manufacturer. Table 3. Thickness of Cylindrical Shell Unit: mm Outside diameter D I Thickness 125 and under
21、 I 1.5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Gearhard, Marcus Not for Resale, 06/01/2007 02:19:38 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*824L 89 W 4933608 0020933 T W Type of g
22、as Oxygen gas and other gases 4 Minimum hydraulic test pressure (bar) kgf/cm2 5/3 times the maximum filling pressure B 8241-1989 Classification of gases Compressed gases Liquefied gases Table 4. Hydraulic Test Pressure and Filling Ratio Carbon dioxide (I) Nitrous oxide (I) Carbon dioxide t nitrous o
23、xide (1) Ethylene Freon 13 Ethane Sulfur hexafluoride Carbon dioxide + ethylene oxide Ethylene tetrafluoride Xenon Hydrogen chloride Freon 13 B 1 Ammonia Chlorine 250 (250) 250 (250) 250 (250) 225 (225) 210 210) 200 200) 200 ZOO) 200 ZOO 140 Cl401 130 (130) 130 (130) 50 (50) 50 E501 50 SO) Filling r
24、atio 0.75 0.75 0.75 0.29 1 .o0 0.36 1.10 0.75 0.90 1.23 0.60 1.27 0.54 1.25 Note (l) Hydraulic test pressure for carbon dioxide, nitrous oxide and a mixture of these gases may be reduced to 200 bar ZOO kgf/cm2 by agreement between the parties concerned with acceptance. Hydraulic test pressure for li
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