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4140 bright steel round bar
As a factory, we can do cold drawing, peeling, centerless grinding and polished and also all kinds of heat treatment. So except the 4140 hot rolled alloy steel round bar, we can also supply 4140 cold drawn alloy steel round bar, 4140 peeled alloy steel round bar, 4140 ground and polished steel bright bar, 4140 annealed steel bar, 4140 normalized steel bar and 4140 quenched and tempered steel bar ( 4140 QT steel bar, 4140 Q&T steel bar ).
1. 4140 steel equivalent material:
|
GB |
ASTM/SAE/AISI |
DIN |
SCM |
AS /NZS1444 |
|
42CrMo |
Aisi 4140 / sae 4140 / astm 4140 |
42CrMo4 / 42CrMoS4 |
SCM440 |
AS 4140 |
2. 4140 steel chemical composition:
|
Materail |
Chemical Composition % |
||||||
|
ASTM/SAE/AISI |
C |
Si |
Mn |
S |
P |
Cr |
Mo |
|
Aisi 4140 / sae 4140 / astm 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
0.035 max |
0.035 max |
0.80-1.10 |
0.15-0.25 |
3. 4140 steel mechanical properties:
|
Mechanical Properties |
||||
|
Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation |
Reduction of area |
AKV (J) |
|
930 min |
1080 min |
12% min |
45% min |
63 min |
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Main Product:
Cold Drawn Steel Bar ,
Bright Steel Bar,
Heat Treated Steel Bar and Tube,
Threaded Rods,
High Strength Steel Tie Rod,
High Strength Steel Bolts
