4140 Pre-Hard STEEL PLATE

which offers greater wear resistance than lower grades of structural steel plate.

Otai has great advantage on 4140 steel plate:

  • 1500+ tons daily stock of 4140 alloy plate or flat bar.
  • Hot rolled / annealed / Q+T (PH prehardened) condition available. 
  • Thickness 4-300mm available for 1-3 days shipment.
  • Thickness 1-10mm cold rolled sheet for 30 days lead time.
  • Cut to width & cut to length service available.
  • Machined to tolerance & roughness pieces service available.
  • https://otaialloysteel.com/4140-steel/

4140 Chemical Composition

AISI 4140 C Mn Si P S Cr Mo
0.38-0.43 0.75-1.00 0.15-0.35 0.035 max 0.040 0.80-1.10 0.15-0.25

4140 Relevant Specifications and Equivalents

ASTM A29 Material No. DIN BS EN 10083 JIS G4105 BS 970-3-1991 BS 970-1955 AS 1444 AFNOR
4140 1.7225 38HM 42CrMo4 SCM440 708M40 EN19A 4140 42CD4
4140 Pre-Hard STEEL PLATE Application 

4140 steel can be used for a wide variety of applications where better wear resistance and toughness is needed over normal carbon steels.

Common uses of 4140 steel plate:

tooling, machine plates, gears, shafts, sprockets, special machine parts, molds, metal stamping, tool & die, shredders, couplings, reamer bodies, screws, flywheel components, axles, shafts, bolts, sprockets, piston rods and rams. diamond cutter Construction