1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS D 7004 KS D 7004:2008 2008 9 8 http:/www.kats.go.krKS D 7004:2008 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) : : 1964 12 31 : 2008 9 8 2008-0506 : : ( 025097274) (http:/www.kats.go.kr). 10 5 , . KS D 7004:2008 Covered electrodes for mild steel 1973 1 I
2、SO 2560, Covered electrodes for manual arc welding of mild steel and low alloy steel Code of symbols for identification . 1 ( .) . 2 . . ( ) . KS B 0821, KS B 0832, KS B 0952, , , , KS D 0064, KS D 3503, KS D 3515, ISO 544, Filler materials for manual welding Size requirements 3 1 . , 1 . KS D 7004:
3、2008 2 1 E 4301 F, V, O, H AC DC() E 4303 F, V, O, H AC DC() E 4311 F, V, O, H AC DC() E 4313 F, V, O, H AC DC( ) E 4316 F, V, O, H AC DC( ) E 4324 F, H AC DC() E 4326 F, H AC DC( ) E 4327 F, H F AC DC(), H AC DC( ) E 4340 F, V, O, H AC DC() 1 . E 43 16 2 . F: V: O: H: , 1 , V O ( .) 5.0 mm . E 4324
4、, E 4326 E 4327 . 3 . AC: , DC(): ( ), DC( ): ( ), DC( ): ( ) 4 4.1 KS B 0952 5.( ) . 4.2 3.2 mm , 0.2 % , 6.2 , 2 . , 2.6 mm 6.2 , 2 . KS D 7004:2008 3 2 N/mm2 0.2 % aN/mm2 % J E 4301 420 345 22 0 47 E 4303 420 345 22 0 27 E 4311 420 345 22 0 27 E 4313 420 345 17 E 4316 420 345 25 0 47 E 4324 420 3
5、45 17 E 4326 420 345 25 0 47 E 4327 420 345 25 0 27 E 4340 420 345 22 0 27 a 0.2 % . 4.3 E 4316 E 4326 6.3 100 g 15 mL . 4.4 6.4 , 3.0 mm , . 5 KS B 0952 4.( ) . 3 . 3 : mm 1.6 230 250 2.0 250 300 2.6 300 350 3.2 350 400 4.0 350 400 450 550 4.5 400 450 550 5.0 400 450 550 700 5.5 450 550 700 6.0 450
6、 550 700 900 6.4 450 550 700 900 7.0 450 550 700 900 8.0 450 550 700 900 KS D 7004:2008 4 6 6.1 6.1.1 KS D 3503 SS 400, KS D 3515 SM 400A C . 6.1.2 . a) 3.2 mm , 3.2 mm 4.0 mm 5.0 mm . , 3.2 mm 3.2 mm . b) 2.6 mm 2.6 mm . , 2.6 mm . c) 4 . 4 mm 2.6 E 4301 E 4303 E 4311 4.0 5.0 F V, O 2.6 E 4313 4.0
7、5.0 V, O 2.6 E 4316 4.0 5.0 F F V, O 2.6 E 4324 4.0 5.0 F 2.6 E 4326 4.0 5.0 F F F 2.6 E 4327 4.0 5.0 F F 2.6 E 4340 4.0 5.0 F F F V, O 6.2 . , a) c) KS B 0821 . a) 20 mm . 3.2 mm 12 mm . b) (10010) , 100 150 . KS D 7004:2008 5 c) (1005) 24 . 6.3 KS D 0064 . , 4.0 mm . 6.4 . , a) e) KS B 0832 . a) 6
8、0 . b) 1 . (tack weld) . : mm 1 c) 2 , 5 . (F) (V) (O) 2 150 10 3 1012 6 25 25 40 40 250 25 KS D 7004:2008 6 d) 3 . 1 15 40 , 100 150 . . e) KS B 0832 . , 2t(t ) . 7 . a) 4.1 5. . b) , , 4.2, 4.3 4.4 . , 3.2 mm , E 4316 E 4326 . , 1 , . 8 . 9 , , . E 4316 AC 5.0 400 10 KS B 0952 6.( ) . a) . 1) 2) (
9、 ) 3) 4) ( ) ( .) 5) 6) b) . KS D 7004:2008 7 A () 1973 1 ISO 2560, Covered electrodes for manual arc welding of mild steel and low alloy steel Code of symbols for identification , . A.1 . 490 590 N/mm2 . . A.2 ISO/R 615, Methods for determining the mechanical properties of the weld metal deposited
10、by electrodes 3.15 mm or more in diameter ISO 2401, Covered electrodes Determination of the efficiency, metal recovery and deposition coefficient A.3 . a) b) c) d) , A.4 A.4.1 E . . . ( ) , . E . KS D 7004:2008 8 A.4.2 . A.6 . . a) 430 510 N/mm2 43 b) 510 610 N/mm2 51 510 N/mm2 610 N/mm2 40 N/mm2 .
11、A.4.3 A.6 V 6 . : 0, 1, 2, 3, 4 5 : a L5 d 28J b N/mm2% E 43 0 E 43 1 E 43 2 E 43 3 E 43 4 E 43 5 430 510 430 510 430 510 430 510 430 510 430 510 20 22 24 24 24 20 0 20 30 40 E 51 0 E 51 1 E 51 2 E 51 3 E 51 4 E 51 5 510 610 510 610 510 610 510 610 510 610 510 610 18 18 20 20 20 20 0 20 30 40 a : 40
12、 N/mm2b1 J 0.102 kgf m(A.6.8 ) A.4.4 , , 4 . A.4.4.1 . A ( ) AR ( ) KS D 7004:2008 9 B C O R ( ) RR ( ) S . . A: , . / / . . . . . . . . 0.24 % / , , 0.05 % 0.06 % . AR: A . . . 35 % . A AR / AR . , . B: . , , . . . . . . . , . , . 0.6 % . IIS/IIW 314 68 ( ) . C: . . KS D 7004:2008 10 . (spatter los
13、s) . . O: . . . (molten pool) . / . . R RR: . 50 % ( ). R AR . 45 % . . R: . 15 % . . RR: . 5 % . . O- . . AR . S: S A, AR, B, C, O, R RR . , , S , . , 2 A, B, C, O R . A.4.4.2 ISO 2401 . . : a) 10 . 5 10 . , 90 100 110 120 130 140 . b) 110 105 % . A.4.4.3 . 1: 2: KS D 7004:2008 11 3: , , / 4: , 5:
14、3 . . A.4 . A.4.4.4 . . . 2.5 mm . . 50 Hz 60 Hz . . . * V 0* 1 2 3 50 50 50 4 5 6 70 70 70 7 8 9 90 90 90 * * , A.4.4.5 (H). (B) . (weld deposit) . (H) . IIS/IIW 315 68 100 g 15 mL . , . (H) (A.5.2 ). A.5 . A.5.1 , , , A.4.1, A.4.2, A.4.3 KS D 7004:2008 12 A.4.4.1 . A.5.2 , , , , A.4.4.2, A.4.4.3,
15、A.4.4.4 A.4.4.5 . 1 : 550 N/mm2 : 23 % : 20 71 J 0 31 J 20 20 J . 50 V . E 43 2R 13 E 43 2R . 2 : 560 N/mm2 : 22 % : 20 47 J : 158 % . E 51 3B 160 20 (H) E 51 3B . A.6 ISO . A.6.1 A.1 V , 10 mm 16 mm . . . A.6.2 4 mm . . . . 16 mm . (50 mm ). . 3 mm . 250 . . A.6.1 A.6.2 ISO/R 615 2 3 . KS D 7004:2008 13 a) 6 . b) . c) 250 . 4 mm 3.15 mm ISO/R 615 2 3 . A.6.3 A.2 . 50 mm . . A.6.4 250