GMKOREA EDS-M-1804-2011 Heat-Resisting Steel Bars for Valve (VERSION 4 English Korean This standard may be applied only for current project It is Superseded for all future projects.pdf
《GMKOREA EDS-M-1804-2011 Heat-Resisting Steel Bars for Valve (VERSION 4 English Korean This standard may be applied only for current project It is Superseded for all future projects.pdf》由会员分享,可在线阅读,更多相关《GMKOREA EDS-M-1804-2011 Heat-Resisting Steel Bars for Valve (VERSION 4 English Korean This standard may be applied only for current project It is Superseded for all future projects.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、 ENGINEERING STANDARDS Material Specification SUPERCEDED EDS-M-1804 Heat-Resisting Steel Bars for Valve This standard may be applied only for current project. It is Superceded for all future projects and replaced by DIN 17480. -/7 !7(I.= Note: 8 E:48t G8 =9 7 FF7 957%L+ , FG P-P Program .Bd# DIN 174
2、80 8p) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved April 2011 Originating Department: GM Korea Engineering Standards Page 1 of 6 Version : 4 1 Scope 1.1 Material Description. This standard specifies heat-resisting steel bars for valves used by GM Korea Company (hereinafte
3、r 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# -l/7 !7(I.=7 $4F7 9IF$ . 1.1.1 9* -C 7$ (=l ). Table 1: Type and Use / E 1: 9* -C 7$ Type / 9* Uses / 7$ Applications / 957 72e , !7(2e -C !*+2e8 7 %L# 7:-l/7 . Intake
4、 valve. Stem-exhaust valve. / Hd -l/ . 3B -dd -l/ . Austenitic bars / 7X3B!8C SUH 36 Head-exhaust valve. / G& -dd -l/ . Remark: When it is necessary to indicate bars and wires with symbols, add B, or WR to the end of type symbol. Ex) SUH3 B, SUH36 WR. / /x : .=87t 2T8(# 8x dGl) E4F Fx74 8# 77# 9* dG
5、l8 !7 B, WR* .8$ . 957 707 38%P E:48x 957F$ . 2.1 17 E:4 / . ISO 148 ISO 6506 JIS Z2241 KS B0801 KS B0809 KS D0228 2.2 GM E:4 / . GMW3059 2.3 dA E:4 / . TMC003 Material Safety Data Sheet guidance documents GM KOREA ENGINEERING STANDARDS EDS-M-1804 Copyright 2011 General Motors Company All Rights Res
6、erved April 2011 Page 2 of 6 Version : 4 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 Ni Cr Mo N SUH 3 0.35 ) 0.45 1.80 ) 2.50 0.60 max / 0.60 8F 0.030 max / 0.030 8F 0.030 max / 0.030 8F 0.60 m
7、ax / 0.60 8F 10.00 ) 12.00 0.70 ) 1.30 - SUH 36 0.48 ) 0.58 0.35 max / 0.35 8F 8.00 ) 10.00 0.040 max / 0.040 ) 0.090 3.25 ) 4.50 20.00 ) 22.00 - 0.35 ) 0.50 Remark: The above values are based on ladle analysis, and tolerances of product analysis shall conform to Table 4 in KS D0228 Product Analysis
8、 and Its Tolerance for Wrought Steel. / /x : 1dF8t )8 (%) Hardness (HB) / $ (HB) Charpy impact value(J/cm2) / 2Fp? (J/cm2) Applicable diameter (mm) / 957: (mm) SUH 3 930 min. / 930 81 685 min. / 685 81 15 min. / 15 81 35 min. / 35 81 269 min. / 269 81 20 min. / 20 81 25 max. / 25 8F Remark 1: Heat t
9、reatment condition: After oil quenching at 980 ) 1080 E , perform rapid cooling at 700 ) 800 E . Remark 2: Hardness after annealing (800 ) 900 E : slow cooling) shall be 269 HB or less. / /x 1: 7(=* 9 : 980 ) 1080 E 8T!G 700 ) 800 E =! . /x 2: 6$* (800 ) 900 E 2P! ) 1B8 $# 269 HB 8F8 . 3.2.2 Austeni
10、tic bars. 3.2.2 7X3B!8C . Table 4: Mechanical Properties after Solution Treatment and Aging Treatment E 4: 7G 7(=* -C 4G=* G d95 2e: Type / 9* Tensile strength (N/mm2) / 88I$ (N/mm2) Yield strength (N/mm2) / F.)I$ (N/mm2) Elongation (%) / 48 (%) Hardness (HB) / $ (HB) Applicable diameter(mm) / 957:
11、(mm) SUH 36 880 min. / 880 81 560 min. / 560 81 8 min. / 8 81 302 min. / 302 81 25 max. / 25 8F Remark 1: Heat treatment condition: After rapid cooling (solution treatment) at 1100 ) 1200 E , perform air cooling (aging treatment) at 730 ) 780 E . Remark 2: The mechanical properties of bars which are
12、 not heat-treated after cold drawing shall be as agreed on between the purchaser and the manufacturer. / /x 1: 7(=* 9 : 1100 ) 1200 E =! (7G 7(=* ) G 730 ) 780 E )! (4G=* ). /x 2: !8 &)8 G 7(=* F: 68t .=8 d95 2e:8t +88 GE87 &d*$ . GM KOREA ENGINEERING STANDARDS EDS-M-1804 Copyright 2011 General Moto
13、rs Company All Rights Reserved April 2011 Page 3 of 6 Version : 4 3.3 Physical Properties (For Reference). 3.3 ,p*95 2e: (=l? ). Table 5: Physical Properties / E 5: ,p*95 2e: Type / 9* Density (g/cm3) / -4$ (g/cm3) Elastic modulus (KN/mm2) / A2e3L (KN/mm2) Coefficient of thermal expansion ( /m E ) /
14、 7(Dq=q3L (Pm/m E ) Thermal conductivity (W/m E ) / 7(98$ (W/m E ) Specific heat capacity (J/g E ) / /x7( (J/g E ) 20 ) 100 E 20 ) 700 E SUH 3 7.70 226 12.9 14.0 21.0 0.50 SUH 36 7.70 215 14.5 18.4 14.5 0.50 3.4 Microstructure. To secure excellent hot forging property, carbide shall be distributed a
15、s finely and uniformly as possible, and banded or network structure carbide shall not be allowed. 3.5 Surface Condition. The surface shall be smooth and free from internal and external defects harmful to the manufacturing process or the function of the products. 3.4 -,2l9: . 73LF 7(8$92e8x G.(Fd 88F
16、7 AG,p8t 4#F F -,2lF 8F .E %L66 F+ , 2T18! +18 AG,p8t F7%L: 6#$ . 3.5 E+ 9 . E+8t +!|F7 6 F+ , 9PE8 9P9)9I8! d#7 F* :0# ! 7.8 F8t F7%L: 6#$ . 3.6 Dimensions. 3.6 GI1 -C ?3L . Table 6: Standard Diameter (mm) / E 6: E:4 : (mm) 9 10 (11) 12 13 14 15 16 17 (18) 19 20 22 24 25 26 28 30 32 34 3.7 Test. 3.
17、7.1 All tests shall be performed at 235 E . 3.7.2 Test Standards. ISO 148: Charpy Pendulum Impact Test. ISO 6506: Brinell Hardness Test. JIS Z2241: Tensile Testing - Method of Test at Room Temperature. y Cross head speed shall be such that the increase rate of strain for parallel part of test piece
18、shall be 40 ) 80%/min. KS B0801: Tensile Test Piece for Metallic Materials-No. 4, No. 10, No. 14A. KS B0809: Impact Test Piece for Metallic Materials-No. 3. 3.7 4G . 3.7.1 +& 4G 8t 235 E72P 44F$ . 3.7.2 4G . ISO 148: Charpy Pendulum Impact Test. ISO 6506: Brinell Hardness Test. JIS Z2241: Tensile Te
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- GMKOREAEDSM18042011HEATRESISTINGSTEELBARSFORVALVEVERSION4ENGLISHKOREANTHISSTANDARDMAYBEAPPLIEDONLYFORCURRENTPROJECTITISSUPERSEDEDFORALLFUTUREPROJECTSPDF

链接地址:http://www.mydoc123.com/p-756615.html