tempering info 1

[tailwind]

what is the HRC and TS of 4130 after quence for tempering to :
1050 deg F
1100 deg F
1150 deg F
1200 deg F

Thanks All

 

[unclesyd]

There results are for a 1/2" bar Austinzed at 1575°F, Quenched in water and tempered at.
These values are interpolated from a relatively small chart.

1050°F HRc 30 UTS 135,000 YS 124,000
1100°F 28 128,000 113,000
1150°F 25 119,000 105,000
1200°F 23 110,000 98,000

This material has a very pronounced mass effect so if the thickness of your part is larger you will see a pronounced loss of properties.

 

[tailwind]

Thank you much unclesyd. These are 1/2 inch pins, perfect. I interpolated from a chart that stops at 1050 deg F and got just slightly different numbers, but close enough. The numbers varify. Thanks again.