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SCM421 Hot rolled steel bar, SCM421 Forged steel bar
SCM421 Forged steel bar is under JIS G4053-2003 standard. It is a king of pinion steel. SCM421 features good performance for heat treatment. The cutting process is good after do the normalizing treatment.
Common size for steel bar:
Common diameter for hot rolled steel bar: 8mm to 70mm
Common diameter for forged steel bar: 80mm to 1200mm
SCM421 Package: standard seaworthy packing or as customer required
Tolerance for the steel bar:
Diameter tolerance: 0~5mm， Length tolerance：0~20mm
Straightness: 3mm/1000mm
Delivery condition for SCM421 steel bar:
Hot forged +Normalized+rough turned Q/T:Quench+ Temper Annealing
EAF ARC FURNACE + LF REFINING+ VD + FORGING (DOUBLE) + FIXED LENGTH + SEP1921C/c TESTING
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
|
SCM421 |
0.17～0.23 |
1.15～1.35 |
0.70～1.00 |
≤0.030 |
≤0.035 |
0.90～1.20 |
≤0.25 |
≤0.25 |
0.90～1.20 |
SCM421 Mechanical property
|
Grade |
Tensile strength |
Yield strength |
Elongation |
Impact value |
|
σb (MPa) Min |
σb (MPa) Min |
δ5 (%)Min |
Akv (J)Min |
|
|
SCM421 |
≥1175(120) |
≥885(90) |
≥10 |
≥55 |
Bebon international Co.,ltd is professional in steel bar. We are a large stockist of steel bar in China. We have almost 750 ton steel bar of SCM421 stock. The stock size ranges from Φ80 to Φ700. The common length for SCM421 steel bar is 3000 to 7000mm. And the price is competitive. If your size can be picked in our warehouse, we can transport the products to the loading port in 3 days. So please be free to contact us if you require steel bar.