Product Definition
Engineered for Demanding Hot Forming
Our pure iron billets (Fe≥99.9%) serve as premium feedstock for critical forging, rolling, and extrusion processes. With ultra-low residuals and homogeneous microstructure**, they outperform standard steel billets in applications requiring structural integrity under extreme deformation.
Key Specifications
|
Parameter |
Value |
Industrial Impact |
|
Cross-Section |
100-400mm² |
Supports reduction ratios ≤15:1 |
|
Surface Quality |
Sa 2.5 (Shot blasted) |
Eliminates scale-induced defects |
|
Decarb Depth |
≤0.08mm (post-reheat) |
Preserves machinability |
|
Internal Soundness |
Class A per SEP 1922 |
Zero porosity |
Composition Advantages
|
Element |
Control Range |
Hot-Working Benefit |
|
C |
0.010-0.025% |
Balances strength & forgeability |
|
Mn |
≤0.020% |
Prevents hot shortness |
|
S |
≤0.005% |
Eliminates edge cracking risk |
|
O₂ |
≤55 ppm |
Reduces surface pitting |
|
P |
0.018-0.035% |
Enhances metal flow |
Trace Elements (Cr+Ni+Cu) < 0.03%
Factory Capabilities
Billet-Specific Production Advantages
|
Process |
Technology |
Quality Outcome |
|
Continuous Casting |
Dynamic Soft Reduction (0.8mm/m) |
Zero centerline segregation |
|
Reheating |
Regenerative Burners |
±5°C temperature uniformity |
|
Inspection |
On-line UT (≥Φ2mm flaw detect) |
100% internal integrity scan |
|
Cooling |
Slow Cooling Pits (48hrs@300°C) |
H₂≤1.3ppm |
Q: How do you prevent corner cracks in high-reduction rolling?
A: Our "CRACK-SHIELD" metallurgy controls Mn/S>5.5:1 with convex mold design. Validated crack-free at 85% reduction.
Q: Can billets withstand multiple reheating cycles?
A: Yes. Scale-resistant chemistry maintains surface integrity through 3 cycles. Weight loss <0.7%/cycle vs. 2.2% industry avg
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