Hudson Tool Steel
California:800-996-0411 New Hampshire:866-557-2874 North Carolina:800-991-0306 Tennessee:888-848-0037
Illinois:800-338-4566 Michigan:833-235-1678

Tool Steel & High Speed Steel For Manufacturers

Pay Now
Order Summary
Items: 0 Cut Charge: $0.00 Total: $0.00
Login
  • Home
  • About Us
  • Products
  • Order Online
  • Technical Data
  • View Blog
  • Contact

Purchase Tool Steel

Type | Category | Advanced
Tool Steel
Mold Steel
High Speed Steel
Knife Steel

Quick Inquiry

Technical Data » Grade » 4140 HT

LSS™ 4140 and 4142HT Alloy Steels

LSS 4140 and 4142HT are versatile, alloy steels that are used in a variety of tooling and other industrial applications. LSS 4140 is the classic AISI 4140 alloy steel that is sold in the annealed condition at a hardness less than or equal to 217 HBW. LSS 4142HT is a similar steel which is sold prehardened to 28 to 32 HRC (269 to 302 HBW). Pieces of LSS 4142HT that are greater than about 3 inches (76.2mm) in thickness typically exhibit a lower hardness in the central region of the cross section.

Applications: Typical applications for these steels include break dies, bending dies, support tooling, die holders, gears, flanges, collets, arbors, spindles, axles, clutch parts, forming rolls, wrenches and other hand tools, and various machine tool components.

Composition
C Mn Si Cr Mo
0.40 1.00 0.25 1.00 0.20
Physical Properties
  • Density: 0.283 lb/in3 (7833 kg/m3)
  • Specific Gravity: 7.83
  • Modulus of Elasticity: 29 x 106 psi (200 GPa)
Physical Properties 4142HT Alloy Steel, Tool Steel, Hudson Tool Steel

Machinability: 60 - 65% of a 1% carbon steel


All tool steel is sold as annealed with the exception of P20 and 4140HT, which are heat treated to HRC 28/32
Hudson Tool Steel Corporation© 2023 Hudson Tool Steel
  • Home
  • About Us
  • Order Online
  • Products
  • Technical Data
  • Contact
Facebook Twitter LinkedIn Google+

California800-996-0411

17871 Park Plaza Dr., Suite #135
Cerritos, CA 90703

New Hampshire866-557-2874

14 Industrial Park Dr
Dover, NH 03820

North Carolina800-991-0306

434 Springbrook Road
Charlotte, NC 28217

Illinois800-338-4566

7987 Crest Hills Drive
Loves Park, IL 61111

Sales Offices: Tennessee 888-848-0037 Michigan 833-235-1678