Q+T best made in China – replacement parts – in Tanta Egypt Alloy Steel Round Bar1.7225 SAE4140 For Machinery with top quality

Q+T  best  made in China - replacement parts -  in Tanta Egypt  Alloy Steel Round Bar1.7225 SAE4140 For Machinery with top quality

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 distinct branches. For more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

Q+T Alloy Steel Round Bar 1.7225/SAE4140 For Machinery

Product Introduction
AI EPT 4140 Metal Bar, Metal Plate, Flats Provider, Stocki EPT and Exporter. AI EPT SAE 4140 alloy metal is a chromium molybdenum alloy steel specification extensively employed in standard function large tensile steel for elements, like axles, shafts, bolts, gears and EPT purposes. Related to alloy grade AI EPT 4130 chrome moly alloy steel but with a a bit larger carbon content material. The increased carbon content material of AI EPT 4140 steel presents better toughness and heat therapy abilities in comparison to AI EPT / ASTM 4130 alloy steels, however it does have inferior weldability attributes.

Equivalent Grades(quantities)

Country United states of america German British Japan China Australia
Common ASTM A29 DIN 17200 BS 970 JIS G4105 GB/T 3077 AS 1444
Grades 4140 one.7225/
42CrMo4 SCM440 42CrMo 4140

Chemical Composition

Standard Quality C Mn P S Si Ni Cr Mo
ASTM A29 4140 .38-.forty three .seventy five-1.00 .035 .040 .15-.35 .8-1.ten .15-.25
EPT 15710 42CrMo4/
.38-.45 .6-.nine .035 .035 .four .9-1.2 .15-.thirty
JIS G4105 SCM440 .38-.forty three .sixty-.eighty five .03 .03 .15-.35 .9-1.2 .fifteen-.thirty

Mechanical Houses Metric Imperial
Tensile power 655 MPa 95000 psi
Generate energy 415 MPa 65710 psi
Bulk modulus (typical for metal) one hundred forty GPa 20300 ksi
Shear modulus (typical for metal) 80 GPa 11600 ksi
Elastic modulus a hundred ninety-210 GPa 27557-3 0571 ksi
Poisson’s ratio .27-.30 .27-.30
Elongation at break (in 50 mm) twenty five.70% twenty five.70%
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) ninety two 92
Hardness, Rockwell C (converted from Brinell hardness. Value below standard HRC variety, for comparison reasons only) 13 13
Hardness, Vickers (transformed from Brinell hardness) 207 207
Machinability (primarily based on AI EPT 1212 as 100 machinability) 65 65

Preheat the metal very carefully, warmth to 1150 oC – 1200 oC highest, maintain right up until temperature is uniform during the section.
Do not forge below 850 oC.Subsequent forging procedure the operate piece ought to be cooled as little by little as feasible.

 Heat Treatment method

  • Annealing
    Heat ASTM 4140 stee EPT to 800 oC – 850 oC, keep till temperature is uniform during the part and awesome in furnace.
  • Normalizing
    Heat metal alloy 4140 to 870 oC – 900 oC, hold till temperature is uniform throughout the segment, soak for 10 – 15 minutes and great in nevertheless air.
  • Tempering
    Re-heat 4140 grade metal to 550 oC – seven hundred oC as necessary, keep until finally temperature is uniform through the section, soak for 1 hour for every twenty five mm of segment, and great in nonetheless air.


AI EPT alloy 4140 steel bar, plate and square can be hardened by cold doing work, or heating and quenching.
SAE 4140 alloy metal is typically provided ready heat treated to hardness in eighteen-22 HRC. If additional warmth remedy is required, then warmth to 840 oC – 875 oC, hold until temperature is uniform throughout the part, soak for ten – 15 minutes per twenty five mm segment, and quench in oil, water, or polymer as essential.


ASTM alloy 4140 steel bar, flat or plate material can be used for as wide range of programs where better toughness and put on resistance is required in excess of lower carbon grades. Normal applications for 4140 tool steel uses contain Components, Adapters, Arbors,strippers, holder blocks, mould bases, ejectors, back again 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, equipment racks, chain backlinks, spindles, instrument bodies, tool holders, tie rods, Connection Rods, Chuck Bodies, Collets, EPT Pins & Rolls, Ejector Pins, Forks, Gears, Xihu (We EPT Lake) Dis. Rods, EPT Shafts & Components,Lathe Spindles, Logging Areas, Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pinions, Pump Shafts,unexciting bars,tracks, slides, use strips or areas, forming dies, brake dies, trim dies, bolsters, machinery areas and factors, and so forth.
Welcome buyers to inquiry AI EPT 4140 metal bar, plate, flat steel for the 4140 steel price. We are professional supplier and exporter for a lot more than twenty several years. We supply you EPT answer for aisi alloy 4140 metal bar.

Offered Dimensions in Stock 

Steel Grade Diameter(mm) Length(mm) Harness(HRC)
SCM440/SAE4140 sixteen,18,20,23,25,28,thirty,33,35,38,forty,forty three,forty five,48,fifty,                                                             55,sixty,65,70,75,eighty,85,ninety,ninety five,100,one hundred ten,120,130,a hundred and forty,               150,160,170,a hundred and eighty,a hundred ninety,two hundred,210,220,230,240,250,260,                            270,280,290,three hundred,310,320,330,340,350,360,370,380,    390,400,410,420,430,440,450 4000-10000 HB160-220

More Picutres


Company Profile:
HangZhou Xihu (We EPT Lake) Dis. Steel Co., Ltd is an export company of Baogang group in south China specialized in exporting unique steel, which is made up of Plastic Mould Steel, Hot Operate Mould Metal, Cold Function Mould Steel, Alloy Steel for Mechanical, Large Velocity Steel, Bearing Metal, Resource Metal, Stainless Metal, Carbon Steel, and many others. 

We also act on behalf of exporting stee EPT of mainly steel factories in China, such as Shagang team, Xihu (We EPT Lake) Dis. group, HangZhou team, Xihu (We EPT Lake) Dis.te team, HangZhou and so on. We are full of 10 a long time export experience to the market all over the term, this kind of as The usa, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, ZheJiang , and middle-east. 

HangZhou Xihu (We EPT Lake) Dis. Steel Co., Ltd has prosperous knowledge and proficient elites, which enable us to offer the be EPT support after many years of advancement. Our company equips with huge-sized vertical observed equipment, horizontal saw machines, milling devices, grinding equipment and EPT superior equipments to give customers with cutting and EPT processing companies. We established up stringent inspection methods, including metallographic evaluation, hardness test, ultrasonic flaw detection and so forth., in purchase to satisfy the requirements of DIN, AISI, JIS and GB to guarantee their purpose and quality. 

Our firm retains the basic principle of “sincerely cooperation, unlimited striving for perfection”. We need to establish the long-term mutual helpful and acquire-acquire partnership with importers all more than the phrase.

High quality Inspection


Our provider
We supply high quality die & tool metal in stock for all industries.
Orders of any dimensions, any duration, ship fast
Supply related value-adding providers :
steel slicing, sizing, machining (blanking, milling, grinding), and heat therapy.
Sawing for little or large quantities, sawing-to-dimensions.
EPT buyer service
Get in touch with Us
Make contact with us for the late EPT value and far more detai EPT NOW!

We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 different branches. For much more specifics: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of authentic products manufacturer’s (OEM) portion numbers or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating merchandise use and compatibility. Our business and the shown substitute areas contained herein are not sponsored, authorized, or manufactured by the OEM.

Q+T  best  made in China - replacement parts -  in Tanta Egypt  Alloy Steel Round Bar1.7225 SAE4140 For Machinery with top quality

Q+T  best  made in China - replacement parts -  in Tanta Egypt  Alloy Steel Round Bar1.7225 SAE4140 For Machinery with top quality

Q+T  best  made in China - replacement parts -  in Tanta Egypt  Alloy Steel Round Bar1.7225 SAE4140 For Machinery with top quality

Leave a Reply

Your email address will not be published. Required fields are marked *