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Materials spec for IS 513 D & 16 Mn Cr 5
2

Materials spec for IS 513 D & 16 Mn Cr 5

Materials spec for IS 513 D & 16 Mn Cr 5

(OP)
Hi,

Could any one kind the materials specs. for the following alloys

1. 16 Mn Cr 5
2. IS 513 D

Thanks in advance,
SK

RE: Materials spec for IS 513 D & 16 Mn Cr 5

16MnCr5 is a case hardening steel in accordance with European Standard (EN).
Carbon 0.16, Manganese 1.00, Chromium 1.00
If there is a need for machining, consider using 16MnCrS5 with a specified amount of Sulphur.

RE: Materials spec for IS 513 D & 16 Mn Cr 5

(OP)
thanks you the reply,

Could any one tell the austenitizing temperature for carburizing this material for a case depth of 1.2mm and the temperature before quench

Thanks,
SK

RE: Materials spec for IS 513 D & 16 Mn Cr 5

You can use a temeperature range of 1700 deg. F (926 deg. C) to 1800 deg. F (954 deg. C).  

Normal practice is to carburize between 1700 to 1750 deg. F., using boost (1.2% carbon potential) and diffuse (0.90% Carbon potential) method.  Drop the temperature to 1550 deg.F to 1625 deg.F and hold for 30 minutes to equalize before quench.  Choose lower temperature(1550) before quench if distortion is a concern.

You need to pay attention to grain growth if you choose a carburizing temperature of 1800 deg.F.

Hope this helps.

Rao Yallapragada

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