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s420 normalized steel round bar
S420 steel is one kind of low alloy carbon steel grade with minimum yield strength 420MPa. S420 steel is widely used in structural engineering and construction industries. Except S420 hot rolled steel round bar, we can also produce cold drawn steel round bar, cold drawn square steel bar and cold drawn hexagonal steel bar.
S420 steel bar has various applications such as components as freight cars, transmission towers, dump trucks, cranes, trailers, bull dozers, excavators, forestry machines, railway wagons etc.
S420 steel grade normalized steel bars. To reach the basic steel mechanical properties of these materials or higher strength, the bars are required to be normalized.
S420 cold drawn steel bar specification 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 |
S420 steel material chemical composition:
|
C |
Si |
Mn |
S |
P |
|
0.22 MAX |
0.55 MAX |
1.65 MAX |
0.040 MAX |
0.040 MAX |
S420 steel mechanical properties:
|
Material |
Tensile strength |
Yield strength |
Elongation |
Impact |
|
S420JR |
520-680 MPa |
420 MPa min |
18% min |
20.C, 34J |
|
S420J0 |
520-680 MPa |
420 MPa min |
18% min |
0.C, 34J |
|
S420J2 |
520-680 MPa |
420 MPa min |
18% min |
-20.C, 34J |
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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
