Steel Heat Treating

Maximizing Strength While Minimizing Distortion

   Hercules processes many airframe and landing gear parts through its salt bath furnaces, believed to be the largest commercially available in the United States

  – and the most frequently requested by customers. Size matters. With vertical working dimensions of 43" in diameter and 108" in depth, these truly extraordinary workhorses can accommodate extremely large parts.

  The powerful austenitizing unit operates from 1400˚F to 1700˚F, holding 20,000 lbs of salt. The Ausbay/Marquench quenching bath, featuring top to bottom agitation, ranges in temperature from 300˚F to 1100˚F and holds 22,000 lbs of salt.

 Our salt bath furnaces are particularly effective in minimizing distortion and other internal stresses. The Ausbay/Marquench process substantially reduces the possibility of cracking, with no loss to the physical properties of the materials. Thus, these methodologies arm Hercules with critical tools to improve a part’s dimensional quality and overall durability.


• Two Neutral Salt Bath Furnaces

   – Oil Quench

   – Ausbay Quench

   – Marquench

   – Harden and Quench Parts

         up to 108" vertically

Materials - such as:

• High Strength, Low Alloy Steels

   – 300M, 4340M

   – HP9-4-30, HY-TUF

• Precipitation Stainless Steels

   – 15-5PH, 17-4PH, 13-8MO

Parts - such as:

• C-17 Landing Gear Components

• 777, 767, 757, 747, and 737

Boeing Commercial Landing Gear Programs

• EA6, E2, F-18, and F-14


Arresting Hook Points

• F-22, F-18, F-16, F-15, F-14

 ©2011- 2018   HERCULES HEAT TREATING CORPORATION  718-625-1266                                                      101 - 113 Classon Avenue  Brooklyn, NY 11205     Created & Maintained-PTH Associates