Baimaoxing
Baimaoxing
In the realm of advanced metallurgy, the 904L Stainless Steel Round Bar (UNS N08904) stands as a pinnacle of super-austenitic material design. Originally engineered to withstand the extreme corrosive nature of dilute sulfuric acid, its application has expanded into the most demanding environments on Earth. As a leading OEM 904 Stainless Steel Round Bar manufacturer, we recognize that modern procurement is no longer just about "buying steel"—it is about sourcing a lifecycle solution that minimizes downtime and maximizes structural integrity.
904L distinguishes itself through a unique chemical composition: high levels of Chromium (19-23%), Nickel (23-28%), and significantly, the addition of Copper (1-2%). This "Copper Advantage" provides the material with exceptional resistance to strong reducing acids and chloride stress corrosion cracking, outperforming standard 316L in nearly every critical metric.
Nickel Content for superior stability in acidic environments.
Pitting Resistance Equivalent Number ensures high chloride resistance.
Our facility in Liaocheng, Shandong, utilizes a vertically integrated model. From raw material smelting to precision cold-drawing and heat treatment, every step is controlled under ISO 9001:2015 standards. This reduces logistical "information gaps" and ensures traceability.
We offer specialized processing services including centerless grinding, mirror polishing, and bespoke cutting. Whether your project requires a 6mm precision rod for medical instruments or a 300mm forged bar for marine shafts, our factory delivers to micron-level tolerances.
By leveraging China's massive industrial infrastructure and advanced EAF (Electric Arc Furnace) technology, we provide 904L solutions that are 15-20% more cost-effective than European counterparts without compromising metallurgical purity.
The global demand for 904L is surging, driven by the Green Hydrogen economy and Carbon Capture (CCUS) projects. These environments require materials that can handle high-pressure corrosive gas mixtures. We are currently pivoting our R&D to provide round bars that exceed ASTM A276 standards for these "future-energy" applications.
We provide comprehensive "Material Packages" for EPC contractors. Beyond just round bars, we offer matching 904L welding consumables and technical consulting to ensure that the galvanic compatibility of the entire system is maintained throughout its 30-year design life.
For international buyers in the USA, EU, and Middle East, procurement of 904L bars involves strict compliance with ASTM, ASME, and EN standards. As a factory, we provide more than just the product; we provide the Mill Test Certificate (MTC) according to EN 10204 3.1, PMI (Positive Material Identification) testing, and Ultrasonic Testing (UT) to ensure zero internal defects.
While 316L is excellent for standard marine use, 904L contains significantly higher Nickel and Chromium, plus Copper. This makes 904L far superior in handling sulfuric, phosphoric, and acetic acids where 316L would fail rapidly due to pitting or general corrosion.
Yes. Our factory supports diameters from 5mm up to 500mm and lengths up to 12 meters. We also provide precision cutting services with a tolerance of +/- 0.5mm.
Every heat of steel is analyzed using optical emission spectrometers. We guarantee the Copper content is within the 1.00-2.00% range, which is critical for the "904L grade" performance. All bars are stamped with heat numbers for full traceability.
The primary industries are chemical processing (especially sulfuric acid plants), pulp and paper, oil and gas (downhole equipment), and high-end consumer goods like luxury watches.
Shandong Baimaoxing Iron and Steel Co., Ltd. is located in Liaocheng City, Shandong Province, China. We are a large steel supplier specializing in research and development, processing, sales, and technical services. Our business covers steel pipes, steel plates, round bars, steel coils, angle bars, flat bars, I-beams, stainless steel plates, stainless steel coils, stainless steel pipes, copper plates, and copper bars, Copper tubes, aluminum plates, aluminum tubes, aluminum coils, aluminum rods, titanium plates, titanium tubes, titanium coils, titanium rods, galvanized steel coils, PPGI, etc.
Baimaoxing adopts a scientific management model, and its products are widely used in industries such as aerospace, military equipment, petrochemicals, automotive parts, shipbuilding, precision machining, transportation and rail, engineering machinery, electrical equipment, packaging machinery, etc.
