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scm440 peeled or turned steel round bar
scm440 steel is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties.
Steel bar peeling or turning is a kind of machining used to remove the imperfections on the hot rolled bars surface. It can also get more precision diameter tolerance and bright surface after peeling or turning. If grinding or polishing is added, the steel bars will be have very good surface roughness which can be directly used to produce components.
scm440 turned or peeled steel bar we supply includes following advantages:
Consistent mechanical properties
Deep mechanical properties (from surface to the center according to your requirement)
Even hardness on the whole bars/Tougher and Increased strength
No brittle, UT testing/Precision size tolerance/Good straightness
Good Roughness/Professional technical service/Competitive price/Fast delivery
Specification of scm440 cold drawn steel bar we supply:
|
Sizes |
Wide range from 14mm to 100mm |
|
Tolerances |
Precision to h9, h10, h11 or even small to 0.02mm |
|
Roundness |
75% of diameter tolerance |
|
Straightness |
Good straightness to 0.5mm/m |
|
Surface roughness |
Smooth to 0.8um |
|
Mechanical properties |
Yield strength and tensile strength can be improved |
|
Machining |
Suitable for machining and welding |
1. scm440 steel equivalent material:
|
GB |
ASTM/SAE/AISI |
DIN |
SCM |
AS /NZS1444 |
|
42CrMo |
Aisi 4140 / sae 4140 / astm 4140 |
42CrMo4 / 42CrMoS4 |
SCM440 |
AS 4140 |
2. scm440 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. scm440 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 |
high strength stud bolt, threaded rods, wind power bolt, prestressed anchor bolts, post stressed anchor bolt, steel tie rod, tie bar, tension rod, tension bar etc. Shaft, axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc. CNC machines, precision CNC machines etc. Ejector pins and Ejector rods
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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
