Case Hardening of 1022 Low Carbon Steel Screws

Heat Treatment of Screws

In case hardening, the surface of a metal is hardened, but the metal that lies deeper within the piece is allowed to remain soft. This is exactly the process one of our clients asked us to use on thousands of 1022 steel screws for the construction industry. Our experienced heat treatment professionals opted to use our continuous belt furnace based on its ability to quickly move the screws through heating chambers for speedy thermal processing. Temperature zones and belt speeds were carefully tweaked so we could quickly and easily meet our customer’s precise specifications. Screw lengths ranged from ½” to 8”, and case depth was .002 to .015 on the Rockwell Hardness testing scale. After heat treatment, the screws required no further processing and were simply left with their heat treatment finish. We now provide heat treatment for minimum lots of 2,000 pounds of screws up to 200,000 pieces at a time for our customer, all in only three to five days.

Let the experts at Bristol Heat Treat bring their metal hardening skills to your next project. Contact them today for further information.

case hardening of Screws Project Highlights

Project Name: Screws

Project Description: Case hardening of screws to customer specified Rockwell readings.

Capabilities Applied/Processes

Primary:

Heat Treatment

Equipment Used to Manufacture Parts: Continuous belt furnace (With proper zone temperatures and belt speed)

Individual Part Dimensions: Length: ½ “ - 8”
Case Depth: .002 - .015

Material Used: 1022 Low Carbon Steel

Material Finishing: Heat Treatment

In Process Testing / Inspection Performed: Rockwell hardness testing

Industry for Use: Construction

Volume: Min lot 2,000 lbs. up to 200,000 pieces at a time

Delivery/Turnaround Time: 3 to 5 days

Standards Met: Customer specifications
Rockwell hardness
Case department measurement