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TA的每日心情 | 开心 2013-6-27 11:19 |
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签到天数: 1 天 [LV.1]初来乍到
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我覺得應該是BG-42的熱處理太囉唆了!
所以當時的廠商大多數還是用ATS34與154CM。
等到S30V出現,相對優於ATS34的性能,以及『超級鋼材』的推波助燃,S30V很快就如野火般燎原,一發不可收拾。
下面是BG42的熱處理資料,折騰阿!
BG-42 Stainless
Typical Analysis
C 1.15 Mn .50 Si .30 Cr 14.50 Mo 4.00 V 1.20
Heat Treating
Heat slowly to 1625-1650°F and soak thoroughly (5 hours minimum at temperature)
Furnace cool 50°F per hour to 1100°F
Continue furnace cool (Furnace may be shut off) to 800°F
Parts may be air cooled from 800°F to room temperature
Resulting hardness Brinell 269 maximum
Hardening & Tempering Information
Preheat 1500°F
Austenitize at 2050°F in salt*
Oil quench to room temperature or salt quench at 1050°F, then air cool to room temperature.
Stress relieve at 300°F - one hour - air cool
Refrigerate at -100°F - equalize - air warm
Double temper at 975°F - 2 hours each - air cool
Resulting hardness Rockwell C61-64 |
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