Today is the first day to office in 2020 new year , and the first big good news was that Otai Special Steel have sales promotion for AISI 4140 preharded plate . We have more than 500 Tons stocklist in our warehouse with mixed size for thickness from 20MM to 180MM , we prepare this alloy steel AISI 4140 preharded plate to thanks our valued client for the support to our company in the past year of 2019 , and other special big thickness and different delivery conditions could be special ordered . If you have any interesting , please contact with me directly by e-mail : monica@otaisteel.com and whatsapp : +86 13711903397 , we will send you the quotation with best price as soon as possible .

4140 steel plate stock for immediate shipment

In the past year of 2019 , we have sold more than 5000 Tons AISI 4140 preharded plate and round bar ,  4140PH is a chromium-manganese-molybdenum grade . This grade is delivered in a prehardened condition at a hardness level of 33/37HRC . The grade has a fully homogeneous martensitebainite microstructure .  4140PH grade has specific sulfur addition (0.060% typical) in order to increase strongly its machinability .

AISI 4140 preharded plate grade performs very well in drilling and in milling using high speed steel or carbide tools. The machinability of 4140PH is increased by a controlled sulfur addition which gives: • 500% increase in milling tool life (at constant cutting speed) • 300% increase in drilling speed • 30% increase in milling speed .

AISI 4140 preharded plate and steel bar, flat material can be used for as wide variety of applications where greater toughness and wear resistance is needed over lower carbon grades. Typical applications for 4140 tool steel uses include Components, Adapters, Arbors,strippers, holder blocks, mold bases, ejectors, back up and support tooling, fixtures, jigs, molds, cams, drill collars, Axle Shafts, Bolts, Crankshafts,stubs, couplings, reamer bodies, axles, shafting, piston rods, rams, hydraulic machinery shafts, gears, sprockets, gear racks, chain links, spindles, tool bodies, tool holders, tie rods, Connection Rods, Chuck Bodies, Collets, Conveyor Pins & Rolls, Ejector Pins, Forks, Gears, Guide Rods, Hydraulic Shafts & Parts,Lathe Spindles, Logging Parts, Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pinions, Pump Shafts,boring bars,tracks, slides, wear strips or parts, forming dies, brake dies, trim dies, bolsters, machinery parts and components, etc.

4140 steel

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com