GMKOREA EDS-M-1806-2003 STAINLESS STEEL BARS.pdf
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1、GM DAEWOO Auto & Technology EDSE ngineering,GM DAEWOO Auto & Technology.Standards STAINLESS STEEL BARS EDS-M-1806 ISSUED DATE: 1994. 06. 27 REVISEDDATE: 2003. 03. 11 VERSION: 3EDS-M-1806 STAINLESS STEEL BARS PAGE: 1/4 ISSUED DATE: 1994. 06. 27 REVISED DATE: 2003. 03. 11 VERSION: 3 GM DAEWOO Auto & T
2、echnology 1. SCOPE This standard specifies the stainless steel bars used by GM DAEWOO Auto & Technology Company(hereinafter referred to as the “GMDAT“). 2. MANUFACTURING METHOD 2.1. After hot rolling or forging, austenitic series shall undergo solution treatment an ferritic series shall be annealed.
3、 However, ferritic series may not be annealed as designated by the purchaser. 2.2. Bars manufactured by cold drawing, grinding, cutting or their combination shall not be heat treated, unless otherwise specified. 3. TYPE AND USE Table 1. Type and Use Type Use ApplicationsAustenitic series SUS 304 B P
4、art requiring corrosion and heat resistance SAFTY CLEVIS SUS 430 B Part requiring corrosion resistance SUS 430F B Part requiring corrosion resistance and machinabilityFerritic series SUS 434 B Part requiring corrosion resistance WEATHERSTRIP-QTR, CNL 4. QUALITY 4.1. Chemical compositionTable 2. Chem
5、ical Composition Unit: wt% Type C Si Mn P S Ni Cr Mo SUS 304 0.08 max. 1.00 max. 2.00 max. 0.045 max. 0.030 max. 8.00 10.50 18.00 20.00 - SUS 430 0.12 max. 0.75 max. 1.00 max. 0.040 max. 0.030 max. 0.60 max. 16.00 18.00 - SUS 430F 0.12 max. 1.00 max. 1.25 max. 0.060 max. 0.15 0.35 0.60 max. 16.00 18
6、.00 0.60 max. SUS 434 0.12 max. 1.00 max. 1.00 max. 0.040 max. 0.030 max. 0.60 max. 16.00 18.00 0.75 1.25 Remark: The above values are based on ladle analysis, and tolerance of product analysis shall conform to Table 4 in KS D 0228Product Analysis and its Tolerance for SteelEDS-M-1806 STAINLESS STEE
7、L BARS PAGE: 2/4 ISSUED DATE: 1994. 06. 27 REVISED DATE: 2003. 03. 11 VERSION: 3 GM DAEWOO Auto & Technology 4.2. Mechanical property Table 3. Mechanical Properties According to Heat Treatment Conditions Type Heat treatment conditions( ) Tensile strength (N/mm 2 ) Yield strength (N/mm 2 ) Elongation
8、 (%) Reduction of area (%) Hardness (HB) Austenitic series SUS 304 B 1010 1150 Rapid cooling 520 min. 205 min. 40 min. 60 min. 187 max. SUS 430 B 780 850 Air cooling/ slow cooling 450 min. 205 min. 22 min. 50 min. 183 max. SUS 430F B 680 820 Air cooling/ slow cooling 450 min. 205 min. 22 min. 50 min
9、. 183 max. Ferritic series SUS 434 B 780 850 Air cooling/ slow cooling 450 min. 205 min. 22 min. 60 min. 183 max. Remark : 1. Austenitic series is in solution treatment state and ferritic series is in annealed state. 2. The mechanical properties of the bars not heat-treated after cold drawing shall
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