1、 KS D 4125KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS D 4125: 2007(2012 ) 2007 9 10 http:/www.kats.go.krKS D 4125: 2007 : ( ) ( ) ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : :1983 11 24 :2007 9 10 :2012 12 31 : 20120859 : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS D 4125: 2007 (2012 ) Car
2、bon and alloy steel forgings for pressure vessels for low-temperature service 1 ( .) . 2 . . KS B 0802, KS B 0805, KS B 0807, KS B 0809, KS B 0810, KS B 0816, KS D 0028, KS D 0204, KS D 0205, ( ) KS D 0210, KS D 0213, KS D 0228, KS D 0274, KS D 1652, KS D 1655, X KS D 1659, KS D 1802, KS D 1803, KS
3、D 1804, KS D 1805, KS D 1806, KS D 1808, 3 1 . KS D 4125: 2007 2 1 SFL 1 SFL 2 SFL 3 4 10.2 . a) 2 . b) KS D 0228 13 . 2 : % C Si Mn P S Ni SFL 1 0.30 0.35 1.35 0.030 0.030 SFL 2 0.30 0.35 1.35 0.030 0.030 SFL 3 0.20 0.35 0.90 0.030 0.030 3.253.75 SFL 2 C 0.25 % , Mn 1.50 % . 5 10.3 , , , 3 . 3 J %
4、3 N/mm2 N/mm214A % V SFL 1 225 440590 22 38 30 21 14 SFL 2 245 490640 19 30 45 27 21 SFL 3 255 490640 19 35 101 27 21 6 , 10.4 , . 7 10.5 , . KS D 4125: 2007 3 8 10.6 . , . 9 9.1 KS D 0028 3.( ) . , . 9.2 . a) . . b) , . 590 , 25 mm 30 . c) 10.3 , . , , , , . 9.3 KS D 0028 . 10 10.1 . , , . 10.2 10.
5、2.1 KS D 0028 4.1( ) . 10.2.2 . KS D 4125: 2007 4 KS D 1652, KS D 1655, KS D 1659, KS D 1802, KS D 1803, KS D 1804, KS D 1805, KS D 1806, KS D 1808 10.3 10.3.1 KS D 0028 4.2( ) . 10.3.2 KS D 0028 4.2 . 10.3.3 KS D 0028 4.2 . 10.3.4 . a) KS B 0802 . b) KS B 0810 . 10.4 KS D 0028 4.5( ) . 10.5 KS D 00
6、28 4.3( ) . 10.6 . KS D 0274 . 11 11.1 KS D 0028 5.1( ) . 11.2 9.3 KS D 0028 5.2( ) . 12 12.1 . KS D 4125: 2007 5 a) KS D 0028 6.( ) . b) 4. . c) 5. . d) 6. . e) 7. . f) 8. . 12.2 12.1 . , , . 1), 2), 3), 4), 5), 6), 13 KS D 0028 7.( ) . 14 KS D 0028 8.( ) . 1) KS B 0805 KS B 0807 . 2) KS D 0213 . 3
7、) KS B 0816 . 4) KS D 0210 . 5) KS D 0205 . 6) KS D 0204 . KS D 4125: 2007 6 KS D 4125: 2007 . 1 KS A 0001( ) , , , . 2 . a) KS B 0802, KS B 0809 KS B 0810 , . b) , 3 4 KS B 0809 V . c) . , 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS D 4125: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Carbon and alloy steel forgings for pressure vessels for lowtemperature service ICS 77.140.20 Korean Agency for Technology and Standards http:/www.kats.go.kr
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