En19 Scm440 4140 Hardened and Tempered Steel Round Bar

EN19 SCM440 4140 Hardened and Tempered Steel Round Bar 
SAE 4140 Scorching rolled Q&T metal spherical bars made in China

 

one.Equivalent CZPTs 

GB,YB JIS DIN(W-Nr.) ASTM BS NF
42CrMo SCM440/(SCM4) 42CrMo4-one.7225 4140 708M40/709M40/708A42/EN19 42CD4

two.Chemical composition of 4140 steel

CZPT Quality C Si Mn P S Cr Mo
ASTM A29 4140 .38-.forty three .fifteen-.35 .seventy five-1.00 ≤ .035 ≤ .04 .8-one.one .fifteen-.twenty five
  42CrMo4 .38-.forty five ≤ .4 .six-.90 ≤ .571 ≤ .035 .nine-1.two .15-.30
EN10083 one.7225
JIS G4105 SCM440 .38-.forty three .fifteen-.35 .six-.eighty five ≤ .035 ≤ .04 .9-one.2 .fifteen-.thirty
GB 3077 42CrMo .38-.forty five .17-.37 .five-.80 ≤ .035 ≤ .035 .nine-one.2 .15-.twenty five
BS 970 EN19 .35-.forty five .15-.35 .5-.eighty ≤ .035 ≤ .035 .9-1.5 .2-.40

three.Warmth treatment of 4140 scm440 en19 
Forging

Can be heated to 1150°C and managed till uniform
Minimal 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
Great in still air
Annealing
Warmth to 830°C – 850°C
Furnace awesome
Normalizing
Warmth to 870°C – 900°C
Great in even now air
Nitriding
Warmth to 500°C – 530°C and hold for enough time to develop the depth of circumstance necessary
Areas need to be pre-hardened and tempered as essential and also pre-machined leaving a small grinding allowance only.
Tempering
Heat to 450°C – 700°C amazing in even now air
Tempering in the variety of 200°C – 420°C triggers mood brittleness and ought to be averted
Flame and Induction Hardening
All components consisting of de-carburized surfaces need to be removed to make certain ideal outcomes.

4.Programs
AISI 4140 is utilised thoroughly in most market sectors for a wide variety of programs these kinds of as:

Strippers bolts axle shafts
resource bodies bolsters holder blocks
stubs crankshafts tool holders
equipment parts and parts mould bases couplings
connecting rods tie rods conveyor parts
ejectors reamer bodies chuck bodies
uninteresting bars crow bars back again up and help tooling
axles collets guides
logging areas fixtures piston rods
conveyor pins & rolls tracks shafts
jigs rams ejector pins
techniques sprockets molds
hydraulic equipment shafts forks slides
studs cams gears
guide rods use strips or components pump shafts
drill collars sprockets torsion bars
forming dies ring gears equipment racks
chain hyperlinks lathe spindles brake dies
adapters valves spindles
logging areas trim dies arbors
milling spindles motor shafts pinch bars
pins pinions nuts
pump shafts resource holders sockets

five.Shipping and delivery problem and measurements:
sixteen-310mm:Scorching rolled / Scorching rolled+QT
five-100mm:Cold Drawn / Cold Drawn+QT
twenty-150mm:Peeled / Peeled+QT
200-1000mm:Cast
6.Payment conditions: T/T or L/ C
(1)thirty% compensated by T/T and rest 70% by T/T on the duplicate of B/B.
(two)a hundred% irrevocable L/C at sight
seven.Delivery time:inside of 7 -20 days soon after your deposit or L/C.
eight. Mark: which includes steel material, heat No., items, excess weight, date and so on.

 

En19 Scm440 4140 Hardened and Tempered Steel Round Bar