Industrial Steel Treating Company, Inc. - Jackson, MI (Serving Indiana)
Service Company
ISO/TS 16949:2009 certified heat treating including case hardening services. Low frequency hardening & tempering, as well as high-frequency hardening. Capabilities include neutral hardening, as well as carbon restoration, carbonitriding & annealing. Utilizes environmental management system toward the prevention of pollution. ISO 14001 compliant.
indstl.thomasnet-navigator.com/item/all-cat...

Case Hardening Services Capabilities
	Controlled Atmosphere Gas Carburizing Controlled Atmosphere Neutral Hardening and Carbon Restoration

Queen City Steel Treating Co. - Cincinnati, OH (Serving Indiana)
Manufacturer, Service Company
ISO 9001:2000 certified carburizing & carbonitriding services for metal. Processes include batch & continuous. Additional services include neutral hardening, normalizing, annealing, stress relieving, solution treating, aging & ferritic nitrocarburizing.
www.qcst.com/index.html

Heat Treating, Inc. - Springfield, OH (Serving Indiana)
Custom Manufacturer, Service Company
Induction, case and steel hardening services. Capabilities include controlled atmosphere processing, elevated temperature quenching, neutral salt bath processing, vacuum processing, induction heating, stress relieving, tempering, magnetic particle inspection, deep freeze and cryogenic treatment, blast cleaning, straightening and distortion control. Meets MIL-H-6875 and AMS-2759 Spec.
www.heattreating.com/our-services.php

Rex Heat Treat - Locations
Service Company
NADCAP & ISO 9001:2008 certified case hardening services in which a suitable steel object is heated above Ac1 in a gaseous atmosphere of such composition as to cause simultaneous absorption of carbon & nitrogen by the surface & by diffusion, to create a concentration gradient. Serving the industries of aerospace, defense, machinery, transportation, conversion services, mining & drilling, nuclear, agricultural, construction, automotive, railroad, trucking, consumer products, & other power generation services. Also equipped to handle a wide variety of heat treat requirements including: titanium heat treating, aging, annealing, carbonitriding, austempering, carburizing, cryogenic heat treating, ferritic nitrocarburizing, induction hardening, mag particle inspection (NDT), marquenching, nitriding, stress relieving, tempering, vacuum heat treating, austenite conditioning, bainitic hardening, blasting, carbon restoring, cold straightening, fixture straightening, harden & temper, lab services, low temperature stabilization, non ferrous treatments, oil quenching, polymer quenching, stainless steel, titanium, tool steels, vertical heat treatment to 20 feet, & water quenching.
www.rexht.com/

Paulo Products Co. - Locations
Custom Manufacturer, Service Company
Heat treating services include annealing, case hardening, nitriding, continuous & batch austempering, hydrogen & vacuum heat treating, induction, ferritic & nitrocarburizing heat-treating, carburizing, carbonitriding, neutral hardening, normalizing & carbon restoration. Capabilities include automatic carbon control. Used for space, automotive, appliance & industrial applications. ISO/TS 16949, ISO 9001, Nadcap, ISO 14001.
www.paulo.com/cap_metserv.html

Kentucky Heat Treating Co. - Winchester, KY (Serving Indiana)
Service Company
ISO 9001:2000 certified case hardening & carbonitriding services for alloy steel & carbon steel. Materials in length up to 48 in., width up to 36 in. & height up to 36 in. can be handled. Capabilities include processing case depths from 0.003 in. to 0.020 in. in temperatures from 1400 degrees F to 1800 degrees F. Markets served include automotive, electrical, military, mining & off-road equipment.
kyheattreat.thomasnet.com/item/all-categori...

Case Hardening Services Capabilities
	Case Hardening / Carbonitriding

Therm-Tech of Waukesha, Inc. - Waukesha, WI (Serving Indiana)
Custom Manufacturer, Service Company
AS 9100:2009 and ISO 9001:2008 certified. Hardening services. Types include water, oil and polymer quench, vacuum, flame and age hardening. Capabilities include heat treating annealing, stress relieving, blasting, austempering, straightening, nitriding, quenching, carburizing, carbonitriding, normalizing and mechanical testing. Aerospace, agriculture, mining, heavy truck, oil field, railroad and tool and die industries served.
www.thermtech.net/machined-parts-stamping

Trutec Industries, Inc. - Urbana, OH (Serving Indiana)
Custom Manufacturer, Service Company
Heat treating services including case hardening services. Gas carburizing & quench/temper neutral hardening services are also available. Services also include coating, chemical blending & warehousing.
www.trutecind.com/trutecind/heat_treatment....

Morgan Ohare, Inc. - Addison, IL (Serving Indiana)
Custom Manufacturer
ISO 9000:2008 & ISO 17025 certified carbonitriding case hardening services for fasteners, springs & small stampings. Other services include application of black, yellow & olive drab chromates, red, green & blue dyes, XSS yellow 1,000 hours to red, clear topcoats 120 to white & 500 to red & torque tension lubricant applications. Metallurgical engineering services include on-site torque-tension testing & heat treating. Servicing OEM's from the automotive, appliance, industrial & end use markets. A2LA accredited.
morganohare.com/index.html

Mitchel Group, The - Indianapolis, IN
Distributor, Manufacturer, Custom Manufacturer, Manufacturers' Rep, Service Company
Screw Machine Products

Cams, Inc. - Indianapolis, IN
Manufacturer, Custom Manufacturer, Service Company
Case, flame & induction hardening & heat treating services. Specializing in applications including cams, gears, sprockets, drums, wheels, splines, punches, dies, plates & tool slides, screws, bolts & shafts up to 4.5 in. in dia. & 8 ft. long.

Precision Heat Treating Corp. - Fort Wayne, IN
Service Company
Copper Brazing, Heat Treating

Learman Electronic Tools - Elkhart, IN
Service Company
Induction heat treatment services for new projects & existing parts that are showing wear.

H & H Commercial Heat Treating, Inc. - Muncie, IN
Manufacturer, Custom Manufacturer, Service Company
Heat Treating Of Metals, Black Oxidizing, Sand Blasting