Stainless Steel Bar, Stainless Steel, Steel Bar manufacturer / supplier in China, offering Cold Rolled 2205 Duplex Stainless Steel Bar, Best Price in China, N08925 Nickel-Base Alloy Bar Pipe Plate, Made in China, N08029 Nickel-Base Alloy Bar Pipe Plate, Made in China and so on.
Min. Order / Reference FOB Price | |
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1 Ton | US $1000.00/ Ton |
Local Area: | Shanghai, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, PayPal |
Type: | AISI 4140 |
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Standard: | AISI, ASTM, DIN, JIS |
Composition: | Alloy Steel |
AISI 4140 is a chromium molybdenum alloy steelspecification widely used in the oil and gas industry. Similar to gradeAISI 4130but with a slightly higher carbon content. The higher carbon content of AISI 4140 gives greater strength and heat treatment capabilities in comparison to AISI 4130, however it does have inferior weldability characteristics. AISI 4140 machines well in the supply condition of 18-22HRc.
We welcome export enquiries for AISI 4140 steel. Contact our sales office and consult ourshipping policyfor further details.
AnalysisCarbon0.38-0.43%Chromium0.80-1.10%Manganese0.75-1.00%Molybdenum0.15-0.25%Gift Box & Bag Silicon0.10-0.35%Phosphorous0.035% maxNickel0.25% maxSulphur0.040% maxForm of SupplyChina JT metal isAISI 4140steel supplier of round bar.Diameters can be supplied as full bar lengths or cut blanks. AISI 4130 ground steel bar can be supplied, providing a high tensile alloy steel precision ground bar to tight tolerances.
Contact our experienced sales team who will assist you with your AISI 4140 steel enquiry.
DiameterApplicationsAISI 4140 is widely used for a variety of applications in the oil and gas sector. Typical applications includecomponents such as connection rods, collets, conveyor pins, gears, stem assemblies, pump shafts and tool, holders
ForgingPreheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.
AnnealingHeat the AISI 4140 slowly toElectric Contact & Materials 800-850°C and allow enough time for the steel to be thoroughly heated. Coolslowly in the furnace to 480°C followed by air cooling.
Stress RelievingWhen parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficialprior to hardening.
HardeningAISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment is requiredAISI 4130 steel is usually supplied ready heat treated with a hardness of 18-22HRC. If further heat treatment is requiredannealed AISI 4140 should be heated slowly to 840-875°C and after adequate soakPower Tools ing at this temperaturequench in oil. Temper as soon as the tools reach room temperature.
TemperingHeat the AISI 4140 carefully to a suitable temperature selected by reference to a tempering chart or table(usually between 550-700°C, soak at the temperature for 2 hours per 25mm of ruling section, then allow to coolin air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce theimpact value.
Typical Mechanical Properties*Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors suchas the shape and size of each AISI 4140 steel component. Other considerations during the heat treatmentprocess include the type of furnace, quenching medium and work piece transfer facilities. Please consult yourheat treatment provider for full guidance on heat treatmeEnvironment Protection Device nt of alloy steel.
CertificationAISI 4140 alloy steel is available with a cast and analysis certificate or a BS EN 10204 3.1 mill certificate, pleaserequest when placing any orders.
Quality Assured SupplyAISI 4140 round bar is supplied in accordance with our ISO 9001 : 2008 registration.
Contact China JT metalwith your enquiries for AISI 4130 alloy steel round bar.