how do you heat treat 4140 steel Related introduction

  1. How to Harden 4140 Steel | eHow - eHow | How to

    Heat the steel a second time to 1,550 degrees, allowing 30 minutes per inch to ensure a consistent temperature through the core of the steel. Step 4 Remove the steel from the heat treat oven and immediately submerge the steel in a trough of mineral oil to quench it, setting the hardness within the steel.

  2. Heat-Treating & Hardening 4140 Steel - Material ...

    Heat-Treating & Hardening 4140 Steel. you could also use 1045 (which would probably be cheaper due to the lower alloy content) and heat treat it. It WILL case harden but it will not through harden. hardness depth will depend on section thickness and quenchant used.

  3. 4140HW Alloy Steel Technical Data

    4140HW meets AISI4140 standards and has improved hardenability and strength in heavier cross-sections. Alloy Description. TimkenSteels 4140HW grade is a fine-grained, low-alloy steel that offers. optimum heat-treat response in heavier cross-sections. You find 4140HW in a. variety of bar and tubing applications in quenched and tempered conditions.

  4. How to heat treat 4140 - The Home Machinist!

    Re: How to heat treat 4140. Heat to 1500-1600 F and hold 1-1/2 hour per inch of greatest thickness. Quench into 150 F oil. Temper immediately after quenching, before the part has cooled to below 150 F. Parts should be held 1 hour per inch of thickness, 2 hours minimum. A single temper is sufficient.

  5. Heat Treatment and Hardnening of 4140 Steel - YouTube

    BCIT millwright students heat 4140 steel to 1650 Deg F to heat treat and harden. The process show the quenching in oil. Be sure to use safety gear when doing this type of work for personal safety.

  6. Heat treating 4140 - practicalmachinist.com

    Thread: Heat treating 4140. Then take the time to look up the allowable range of those 4 elements and see what you have. Steels with all 4 near the lower limit are known as lean, and require much faster cooling rates thru thru the all-important temp. range of ~1200F down to ~900F. 900F is just below red hot.

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