We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 various branches. For far more details: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
EN19 SCM440 4140 Hardened and Tempered Steel Spherical Bar
SAE 4140 Hot rolled Q&T steel spherical bars produced in China
1.Equivalent Standards
| GB,YB | JIS | DIN(W-Nr.) | ASTM | BS | NF |
| 42CrMo | SCM440/(SCM4) | 42CrMo4-1.7225 | 4140 | 708M40/709M40/708A42/EN19 | 42CD4 |
2.Chemical composition of 4140 metal
| Normal | Grade | C | Si | Mn | P | S | Cr | Mo |
| ASTM A29 | 4140 | .38-.43 | .fifteen-.35 | .75-1.00 | ≤ .035 | ≤ .04 | .8-1.1 | .fifteen-.25 |
| 42CrMo4 | 0.38-.45 | ≤ .4 | 0.6-.90 | ≤ .571 | ≤ .035 | 0.9-1.two | 0.15-.thirty | |
| EN10083 | one.7225 | |||||||
| JIS G4105 | SCM440 | .38-.43 | .fifteen-.35 | .6-.eighty five | ≤ .035 | ≤ .04 | .9-1.2 | .fifteen-.30 |
| GB 3077 | 42CrMo | .38-.45 | .seventeen-.37 | .5-.eighty | ≤ .035 | ≤ .035 | .9-1.two | .fifteen-.25 |
| BS 970 | EN19 | .35-.forty five | .fifteen-.35 | .5-.80 | ≤ .035 | ≤ .035 | .9-1.five | .2-.40 |
three.Warmth therapy of 4140 scm440 en19
Forging
Can be heated to 1150°C and managed until finally uniform
Minimum forging temperature 850°C
Can be cooled slowly in sand or ash
Anxiety Relieving
Hardened: Heat to 500°C – 550°C
Annealed: Heat to 600°C – 650°C
Cool in nevertheless air
Annealing
Warmth to 830°C – 850°C
Furnace great
Normalizing
Warmth to 870°C – 900°C
Awesome in nevertheless air
Nitriding
Warmth to 500°C – 530°C and keep for sufficient time to create the depth of case essential
Areas need to be pre-hardened and tempered as required and also pre-machined leaving a modest grinding allowance only.
Tempering
Warmth to 450°C – 700°C great in nonetheless air
Tempering in the range of 200°C – 420°C causes mood brittleness and must be averted
Flame and Induction Hardening
All materia EPT consisting of de-carburized surfaces ought to be taken off to make sure be EPT results.
4.Apps
AI EPT 4140 is utilized thoroughly in mo EPT business sectors for a wide range of apps such as:
Strippers bolts axle shafts
tool bodies bolsters holder blocks
stubs crankshafts instrument holders
machinery elements and parts mildew bases couplings
connecting rods tie rods conveyor parts
ejectors reamer bodies chuck bodies
boring bars crow bars again up and assistance tooling
axles collets guides
logging elements fixtures piston rods
conveyor pins & rol EPT tracks shafts
jigs rams ejector pins
approaches sprockets molds
hydraulic machinery shafts forks slides
studs cams gears
manual rods use strips or components pump shafts
drill collars sprockets torsion bars
forming dies ring gears gear racks
chain back links lathe spindles brake dies
adapters valves spindles
logging elements trim dies arbors
milling spindles motor shafts pinch bars
pins pinions nuts
pump shafts tool holders sockets
five.Delivery problem and dimensions:
16-310mm:Sizzling rolled / Very hot rolled+QT
five-100mm:Cold Drawn / Cold Drawn+QT
20-150mm:Peeled / Peeled+QT
two hundred-1000mm:Solid
six.Payment conditions: T/T or L/ C
(1)30% paid out by T/T and re EPT 70% by T/T on the copy of B/B.
(2)a hundred% irrevocable L/C at sight
7.Supply time:inside of 7 -20 days following your deposit or L/C.
8. Mark: such as steel substance, heat No., parts, bodyweight, day and so on.
We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 various branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of unique tools manufacturer’s (OEM) element quantities or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our firm and the detailed substitution parts contained herein are not sponsored, authorized, or made by the OEM.
