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12-02-2004, 05:08 PM
| #1 |
| Join Date: Feb 2003
Posts: 29
| Purple Slide
Why do the P7 pistols sometimes have purple slides? I had a P7M8 ten years ago and I bought a P7 PSP and the slide is purple. thanks |
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12-31-2004, 08:37 PM
| #3 |
| Join Date: Oct 2003
Posts: 147
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Could be due to Boron being used as an alloy in the steel. Not sure WHY it does what it does but one can obtain better mechanical properties using Boron as an alloying element.
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01-01-2005, 06:54 AM
| #4 |
| Senior Member Join Date: Jun 2002
Posts: 1,559
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It may be the alloy or it may just be the hardness. Both can have an effect on blueing.
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11-26-2017, 07:29 AM
| #5 |
| Junior Member Join Date: Mar 2017 Location: Miami, Fl
Posts: 19
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I always thought it was something to do with the finishing steps HK did.
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