Baimaoxing
Baimaoxing
Moving beyond standard carbon steel, our High Tensile Alloy Steel (HTAS) bars utilize precise additions of Chromium, Molybdenum, and Nickel. This roadmap focuses on grain refinement techniques that enhance yield strength without compromising ductility, essential for heavy-duty drive shafts and structural components.
Future-proofing our supply chain involves Vacuum Degassing (VD) and Ladle Refining (LF) technologies. By minimizing non-metallic inclusions, we provide alloy bars with superior fatigue resistance, tailored for the extreme environments of aerospace and subsea oil & gas operations.
The integration of AI-driven Quench & Temper (Q&T) cycles ensures homogeneous hardness across the entire cross-section of bars up to 600mm. Our roadmap includes real-time cooling rate monitoring to eliminate internal stresses and guarantee dimensional stability.
Located in Liaocheng City, Shandong Province, Shandong Baimaoxing Iron and Steel Co., Ltd. stands as a titan in the Chinese steel industry. We are not just a supplier; we are a dedicated R&D hub for advanced metallurgy. Our expertise spans across high-tensile alloy steel bars, stainless steel, and non-ferrous metals like titanium and copper.
By adopting a scientific management model, Baimaoxing's high tensile alloy steel bars (grades 4140, 4340, 8620) are integral to sectors requiring zero-failure tolerance, including military equipment, precision machining, and rail transportation infrastructure.
Providing high-strength-to-weight ratio alloy bars (like 4340) for landing gear components and structural fasteners where failure is not an option.
Supplying Q345 and 4140 bars for hydraulic cylinders, excavator pins, and heavy-duty gear systems designed for 24/7 industrial loads.
Critical materials for wind turbine shafts and high-pressure valves in petrochemical refineries, ensuring corrosion resistance and high-temperature stability.
Our Liaocheng facility integrates Industry 4.0 protocols, allowing for real-time tracking of every steel billet from the furnace to the shipping container. This transparency ensures that global enterprises receive consistent quality and accurate lead times.
We understand the complexities of global procurement. Our team provides full documentation, including Mill Test Certificates (MTC) to EN 10204 3.1, SGS reports, and specialized packaging for sea freight to prevent oxidation and physical damage.
| Alloy Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HB) | Typical Applications |
|---|---|---|---|---|
| AISI 4140 | 850 - 1000 | 650 min | 220 - 300 | Gears, Shafts, Bolts, Drill Collars |
| AISI 4340 | 1100 - 1300 | 900 min | 300 - 380 | Crankshafts, Heavy Duty Gears, Aerospace |
| AISI 4130 | 560 - 700 | 460 min | 180 - 220 | Structural Tubing, Bike Frames, Oil Valves |
| Q345 / Q355 | 470 - 630 | 345 min | 140 - 180 | Bridges, General Construction, Brackets |
*Data based on standard Quenched and Tempered (Q+T) conditions. Custom processing available upon request.
