Nitralloy 135M

If someone would be so kind as to offer a layman's definition of
Nitralloy 135M I would appreciate it. I've googled as best I could and
cannot find anything useful. I am primarily interested in its
"grind-ability" properties.
Thanks in advance.
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Nitralloy 135 is a low-alloy steel optimized for nitriding. Nitrifing will create a very hard but thin surface case layer. Nitriding is useful when quenching a steel to temper it would cause distortion or warping.
It is specified by AMS 6470 or 6472.
Nitriding process and parameters are available in AMS 2759/6.
Results from grinding will be similar to any case-hardened material. The hard case is difficult to grind. The case is thin, so extensive grinding will wear through the case.
What else do you need to know?
Reply to
Harry Andreas
Thanks for your response.
Nitralloy 135M is a "generic" name for *any* low-alloy steel optimized for nitriding or is there a specific composition?
Reply to
No, 135 is a specific alloy w. specific composition. UNS K24065
CArbon .38-.43 Manganese .5-.8 Silicon .2-.4 Phosphorus .025 max Sulfer .025 max Chromium 1.40-1.80 Molybdenum .30-.40 Aluminum .95-1.30 Nickel .25 max Copper .35 max
It can be hardened by conventional methods before nitriding (AMS6472) or nitrided as received (AMS6470)
Reply to
Harry Andreas

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