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Product Details:
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| Name: | Steel Round Bar | Dia: | 20-420mm |
|---|---|---|---|
| Length: | 6-11m | Type: | Hot Rolled / Cold Rolled |
| Highlight: | forged steel round bar,carbon steel round bars |
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1.Grade: SAE4140 4150 42CrMo4 50CrMo4 A193 B16
2.Dia:12-300mm
3.Length:3-12m
4.Hot rolled
5.MOQ: 3mt per size
6.Chemical Composition
|
Grade |
C |
Si |
Mn |
Cr |
Mo |
Ni |
Cu
|
P |
S |
|
|
4140 |
0.38 0.41 |
0.15 0.35 |
0.85 1.00 |
0.8 1.1 |
0.15 0.25 |
Max 0.25
|
Max 0.35 |
Max 0.015 |
Max 0.040 |
Al (0.012 0.0030) |
|
4150 |
0.48 0.53 |
0.15 0.35 |
0.75 1.00 |
0.80 1.10 |
0.15 0.25 |
Max 0.25
|
Max 0.35
|
Max 0.035
|
Max 0..040
|
V (0.012 0.030) |
7.Mechanical Property
|
Grade |
Tensile Strength (MPa) |
Yield Strength δ5 (%) |
Area Reduction ψ (%) |
Impact Work Akv (J) |
Notched Bar impact Strength αkv (J/cm2) |
Hardness |
Sample Size |
|
4140 |
Min1080 (110) |
Min12 |
Min45 |
Min63 |
Min78(8) |
Max217HB |
25mm |
8.Both end of each bar must be cut.
Ladle furnaced and vacuum de-gassed
Show Heat NO. on each bar
Surface condition: The surface of the hot rolled round/ square bar shall be free cracks, scar and wrinkles at affect the use
of the billets. In case there is the above-mentioned defect.it shall be remove.
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be
within the limit stipulated in the contract.
Contact Person: Mr. Gao Ben
Tel: +86-18068357371
Fax: 86-0510-88680060
