GMKOREA EDS-M-1910-2011 Ductile Cast Irons For Elevated Temperature Service.pdf
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1、 ENGINEERING STANDARDS Material Specification SUPERCEDED EDS-M-1910 Ductile Cast Irons For Elevated Temperature Service This standard may be applied only for current project. It is Superceded for all future projects and replaced by GMW13. 77 1 H 7$ :0= Note: 8 E:48t G8 =9 7 FF7 957%L+ , FG P-P Progr
2、am .Bd# GMW13 8p) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved April 2011 Originating Department: GM Korea Engineering Standards Page 1 of 7 Version : 3 1 Scope 1.1 Material Description. This standard specifies the ductile cast irons for elevated temperature service used b
3、y GM Korea Company (hereinafter referred to as the “GM Korea“). 1.1.1 Type and Use (Reference). 1 P7 1.1 8: 8-L C2e . 8 8t GM Korea Company (8F “$-1 ( F )72P 17F# 77 1 H 7$ :0=E7 $4F7 9IF$ . 1.1.1 9* -C 7$ (=l ). Table 1: Type and Use / E 1: 9* -C 7$ Type / 9* Base structure / d: 9: Uses / 7$ Applic
4、ations / 957 707 38%P E:48x 957F$ . 2.1 17 E:4 / . ISO 6506 JIS Z2241 2.2 GM E:4 / . EDS-T-7101 GMW3059 2.3 dA E:4 / . TMC003 Material Safety Data Sheet guidance documents GM KOREA ENGINEERING STANDARDS EDS-M-1910 Copyright 2011 General Motors Company All Rights Reserved April 2011 Page 2 of 7 Versi
5、on : 3 3 Requirements 3.1 Chemical Composition. 3 7 1F 3.1 GF 2e. . Table 2: Chemical Composition (Unit: wt%) / E 2: GF 2e. ($88 : wt%) Type / 9* C Si Mn P S Mo Mg FCDH 01 3.203.60 3.804.20 0.50 max. / 0.50 8F 0.050 max. / 0.050 8F 0.02 max. / 0.02 8F 0.400.60 0.040.07 FCDH 02 3.203.60 3.904.20 0.50
6、 max. / 0.50 8F 0.050 max. / 0.050 8F 0.02 max. / 0.02 8F 0.600.80 0.040.07 FCDH 03 3.203.80 4.05.0 R 0.5 - 0.01 max. / 0.01 8F 0.751.25 0.040.07 Remark: Values in Table 2 are the reference values on which the quality of castings are controlled and compositions other S, Mg shall not be regulated. /
7、/x : E 28 F8t :0,p E:8x 4*Fd 88F E:4?8+ S, Mg 878 2e.8t 9PF: 6#$ . 3.2 Mechanical Properties. 3.2 d95 2e: . Table 3: Mechanical properties / E 3: d95 2e: Type / 9* Tensile strength (N/mm2) / 88 I$ (N/mm2) Yield strength (N/mm2) / F.) I$ (N/mm2) Elongation (%) / 48 (%) Hardness (HB) / $ (HB) FCDH 01
8、- - - 191241 FCDH 02 - - - 190240 FCDH 03 550 min. / 550 81 480 min. / 480 81 5 min. / 5 81 200240 Remark: Tensile, yield strength and elongation are the values resulting from the test performed with the specimen of paragraph 3.5.2. / /x : 88 , F.) I$ -C 488t 3.5.2 F8 )48* 17F7 4G F F8 . 3.3 Microst
9、ructure. 3.3.1 Microstructures of iron castings shall be met the Table 4, according to EDS-T-7101 Method of Microscopic Test for the Microstructures in cast Iron by the structure rating chart. 3.3 -,2l 9: . 3.3.1 :0=E8 -,2l9:8t EDS-T-7101 Structure Rating Chart 7 8F :0=8 G8-, 9: 4G - 7 8F E 4* +9F6
10、F$ . GM KOREA ENGINEERING STANDARDS EDS-M-1910 Copyright 2011 General Motors Company All Rights Reserved April 2011 Page 3 of 7 Version : 3 Table 4: Microstructures / E 4: -,2l 9: Type / 9* Graphite structure / H 7$ 9: Base structure / d: 9: Shape (M ) / GIB (M ) Spheroidizing rate (N ) / 1G8 (N ) S
11、ize (O ) / A d (O ) Ferrite-Pearlite area ratio (P ) / D(8C -D(8C +95/x (P ) FCDH 01 Figure 12 85% Figure 35 85% ,* 35 85% Figure 35 85% ,* 35 ) &%8 F8 666 F$ . 3.5 4G . 3.5.1 +& 4G 8t 235 E72P 44F$ . 3.5.2 )48 . 3.5.2.1 )488 9P9 - . )48# :0=E0 M8t 9*8 :0GI8x 17F7 :0=E0 % 8 972P -P) :09F# 8x 8?8p) F
12、$ . )488 =x? :0d -C 3L(8t +87t8 GE87 &d*$ . )488 7(=*# 8?958p) 9PE0 F % 8)72P % 47 7(=* 44 F$ . GM KOREA ENGINEERING STANDARDS EDS-M-1910 Copyright 2011 General Motors Company All Rights Reserved April 2011 Page 4 of 7 Version : 3 3.5.2.2 Shape and Dimension of Test Specimen. Shape and dimensions of
13、 specimens shall be of 6 types made up of four Y types (No. A ) D indicated in Table 5 and 6 knock off types shown in Figure 1 (type Ka or Kb). In principle, No. B of type Y shall be used, but knock off type (type Ka or Kb) may be substituted for No. B. When there are remarkable differences in the t
14、hickness of Iron castings, one of No. A, C and D of type Y may be used, and the type of specimen shall be recorded in the test report. 3.5.2.2 )488 +6 , ?3L . )488 +6 -C ?3L# E 57 E4F YGI A ) D Gl7t ,* 17 !A! “7XF8GI (Ka GI D# Kb GI )8 6 9*) F , 8?958p) YGI BGl* 17F+ , YGI BGl $447 “7XF8GI (Ka GI D#
15、 Kb GI )8x 17F$ 9$ . :0=E8 % 4 G894F $* +87t8 GE87 &d( YGI A, C -C DGl :E F4:* 17F 3L 8$ . )488 9*# -L&4 4G 2e952P7 d8F6 F$ . Table 5: Dimension of Y Type Specimen (mm) / E 5: YGI )488 ?3L (mm) Type / 9* a b c d e No. A / A Gl 12 40 25 135 150 min / 150 81 No. B / B Gl 25 55 40 140 150 min / 150
16、81 No. C / C Gl 50 90 50 160 150 min / 150 81 No. D / D Gl 75 125 65 175 150 min / 150 81 Figure 1: Mould, shape and Dimensions of knock-off type (Ka type and Kb type specimens) / ,* 1: “ 7XF8GI (KaGI , KbGI ) )488 :0GI , +6 -C ?3L GM KOREA ENGINEERING STANDARDS EDS-M-1910 Copyright 2011 General Mot
17、ors Company All Rights Reserved April 2011 Page 5 of 7 Version : 3 3.5.3 Test Standards. EDS-T-7101: Method of Microscopic Test for the Microstructures in Cast Iron by the Structure Rating Chart. ISO 6506: Brinell Hardness Test. JIS Z2241: Tensile Testing - Method of Test at Room Temperature. 3.5.3
18、4G . EDS-T-7101: Structure Rating Chart7 8F :0=8 G8-, 9: 4G - . ISO 6506: Brinell Hardness Test. JIS Z2241: Tensile Testing - Method of Test at Room Temperature. 4 Manufacturing Process 4.1 The iron castings shall be manufactured by melting in a cupola, electric furnace and other suitable furnace an
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