Main Products: H13 tool Steel round bar ,tool steel plate ,High speed steel ,mold steel ,Automotive steel
Free sample 4140 alloy steel, steel aisi 4140, aisi 4140 shaft
USD $400 - $865 /Ton
Min.Order:25 Tons
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Dongguan City Yaoteng Special Steel Co., Ltd.
Business Type: Manufacturer,Trading Company
Dongguan Guangdong ChinaMain Products: H13 tool Steel round bar ,tool steel plate ,High speed steel ,mold steel ,Automotive steelProduct Details
Free sample 4140 alloy steel, steel aisi 4140, aisi 4140 shaft
•1995.10 Established tool steel Plus workshops,beginning make the
mould steel cutting process
•2001.7 Changed to limited liability company, have 8 set
semi-automatic Bandsaw Cutting machinery and 3 set planing machine.
•2004.6 All Bandsaw Cutting machinery update to CNC Machinery,1 set
large precision grinding machine and 2 set small grinding is was
introduced and purchase a set Gantry Milling
•2009.5 Establish cooperation with Changcheng Special Steel Co.,Ltd, FUSHUN special steel and BaoSteel. as the specified distributor for special steel.
•2010.2 Start International trade
•2012 Through Alibaba certified high quality suppliers
•2013 and 2014 finished the company new Shares system , Customers in more than 40 countries around the world
| Grade | C | Si | Mn | P | S | Cr | Mo | Cu |
| 4140 | 0.38~0.43 | 0.15~0.35 | 0.75~1.00 | ≤0.035 | ≤0.040 | 0.80~1.10 | 0.15~0.25 | / |
| SCM440 | 0.38~0.43 | 0.15~0.35 | 0.60~0.85 | ≤0.030 | ≤0.030 | 0.90~1.20 | 0.90~1.20 | ≤0.30 |
| 42CrMo4 | 0.38~0.45 | ≤0.40 | 0.60~0.90 | ≤0.035 | ≤0.035 | 0.90~1.20 | 0.15~0.30 | / |
| 42CrMo | 0.38~0.45 | 0.17~0.37 | 0.50~0.80 | ≤0.030 | ≤0.030 | 0.90~1.20 | 0.15~0.25 | / |
YAOTENG Steel are steel stockholders and suppliers of 4140 carbon steel in round, square and flat bar. 4140 bar can be sawn cut to your required length. YaoTeng Steel can offer flame cut steel profiles in grade 4140, which can be surface ground if required. 4140 ground steel bar can be supplied, providing a precision ground steel bar to tight tolerances.
Contact our experienced sales team who will assist you with your EN8 medium carbon steel enquiry. |
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| Plate | Flat | Diameter |
AISI 4140 is commonly used for a variety of applications in the oil and gas sector. Typical applications include components such as connection rods, collets, conveyor pins, gears, stem assemblies, pump shafts and tool holders. |
Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.
When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening.
AISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment is required annealed AISI 4140 should be heated slowly to 840-875°C and after adequate soaking at this temperature quench in oil. Temper as soon as the tools reach room temperature.
Heat 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 cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
Normal we don't advice Welding the 4140 steel material. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding 4140 steel.
Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each AISI 4140 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of alloy steel.
Select the correct grade of wheel in consultation with the grinding wheel manufacturer. Ensure the grinding wheel is in good condition by means of a suitable dressing tool. Wet grinding is a preferable option using a copious supply of coolant. If dry grinding is resorted to then use a very soft wheel.
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