ASTM steel plate 4140 precision ground flat stock is usually pre-hardened to HRC 28-32. Otai may have the largest inventory of 4140 plate/flat in China.

4140 steel is the chromium, molybdenum, manganese low alloy steels noted for good hardenability, strength, toughness, wear resistance, and ductility.

Steel 4140 precision ground flat PH is generally hardened and tempered in the range of 850 to 1000 Mpa for an improved machinability. If annealed 4140 ground flat is needed, we can also do annealed against given specification.

4140-precision-ground-flat

  • Standard: ASTM A29
  • Finish: Precision Ground
  • Hardness: 28-32HRC
  • Thickness Tolerance: -/+0.03mm
  • Color Code: as per requirement
  • With material certification
  • Wrapped in film in wooden box

APPLICATION

ASTM 4140 precision ground alloy steel can be used for wide applications that include holder blocks, strippers, ejectors, fixtures, molds, cans, jigs, blocks, drill collars, back up and support tooling, cams, couplings, stubs, bolts, axles, piston rods, reamer bodies, shafting, gear racks, chain links, valves, tool bodies, spindles, tie rods, hydraulic machinery shafts, rams, sprockets, gears, tool holders, guides, boring bars, ways, wear strips or parts, tracks, slides, trim dies, bolsters, forming dishes, brake dies, machinery parts and components, etc.

AVAILABLE 4140 PRECISION GROUND PLATE / FLAT SIZES

4140 Heat Treated Precision Ground Plate / Flat Stock Available Sizes

4140 ground plate / flat stock size  1/2

4140 ground plate / flat stock size  5/8

4140 ground plate / flat stock size  3/4

4140 ground plate / flat stock size  7/8

4140 ground plate / flat stock size  1

4140 ground plate / flat stock size  1 1/8

4140 ground plate / flat stock size  1 1/4

4140 ground plate / flat stock size  1 3/8

4140 ground plate / flat stock size  1 1/2

4140 ground plate / flat stock size  1 3/4

4140 ground plate / flat stock size  2

4140 ground plate / flat stock size  2 1/2

4140 ground plate / flat stock size  2 3/4

4140 ground plate / flat stock size  3

4140 ground plate / flat stock size  3 1/2

4140 ground plate / flat stock size  4

4140 ground plate / flat stock size  4 1/2

4140 ground plate / flat stock size  4 3/4

4140 ground plate / flat stock size  5

4140 ground plate / flat stock size  6

4140 ground plate / flat stock size  7

*max 24” thickness available upon request

DELIVERY TIME OF 4140 PRECISION GROUND STEEL BAR

1 days for order quantity below 5 tons

7 days for order quantity below 25 tons

14 days for order quantity below 50 tons