Hot rolled steel round bar/ alloy steel round bar/alloy steel bar
aisi 4140 4150 8620 alloy steel forged steel round bar
| Grade/Material |
4140 4130 4150 SCM440 SCM435 SCM420 SCM415 ASTM A36 A105 S20C S45c |
| Available sizes |
Hot rolled steel round bars 10mm-350mm
Hot rolled steel square bars 16mm*16mm-100mm*100mm |
| Size tolerance |
Length tolerance:+100mm/-0mm
Straigthness:<=6mm/m |
| Delivery condition |
Hot rolled or cold drawn or forged, turned or black surface, annealed or QT as.As customer's request
|
| Applications |
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
|
| Inspection |
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT sep1921 C/c 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C |
| Packing situation |
standard seaworthy packing or as customer required |
| Process |
EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional) |
| Delivery time |
7days for stock,30days for new material |
| Payment term |
T/T or L/C |
1.Quality Control
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Surface condition the surface of the hot rolled square bar shall be free cracks, scar and wrinkles that 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.
2.Payment term:TT or LC
3.Free sample:Yes
4.steel bar Inspection:
5.Our steel bar mill's certificate
ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;
JIS MARK,KS MARK.
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Audited Supplier 
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