N08028 bright bar is an ultra-low-carbon high-Cr-Ni-Mo-Cu iron-nickel austenitic corrosion-resistant alloy, specially developed for severe corrosive environments such as wet phosphoric acid and strong acid media containing chloride and sulfide. Its high-nickel & high-chromium matrix with molybdenum and copper additives delivers balanced comprehensive mechanical properties, moderate tensile and yield strength, excellent uniform plasticity to avoid brittle fracture under load. Stable adjustable performance can be obtained via solution heat treatment to meet diversified demands of anti-corrosion parts manufacturing. It owns stable cutting performance with low tool wear, enabling high-precision and high-finish workpieces through turning, milling and drilling. It features wide hot working temperature range and superior thermoplasticity for smooth forging and hot rolling to produce various special-shaped blanks and finished products. Cold working will cause work hardening, and intermediate annealing can be adopted to realize shaping and optimize material performance. With PREN value reaching 35~38, the alloy boasts outstanding resistance to pitting, crevice corrosion and chloride stress corrosion cracking. It maintains long-term stability in sulfuric acid, phosphoric acid, nitric acid, organic acids, sour oil & gas media with H₂S/CO₂, seawater and flue gas desulfurization environments. As a core material for key components in chemical, oil & gas, seawater desalination and environmental FGD industries, it guarantees long-term stable operation of equipment under corrosive working conditions.

Chemical element content (%)

Specification：1.00~300.00mm

Application:It is mainly used to manufacture heat exchanger shafts, stirring shafts, pump shafts, valve stems, bolts, nuts, flanges, downhole tools and reactor accessories, fasteners for pickling equipment. Widely applied in wet phosphoric acid chemical industry, sulfuric acid recovery units, chlor-alkali industry, high-sulfur oil & gas exploitation, seawater desalination, FGD flue gas desulfurization, hydrometallurgy, pharmaceutical anti-corrosion equipment and other fields.

Core Advantages Over Competitors

1. Comprehensive ultra-high corrosion resistance for wide working conditions: Precisely control the ratio of nickel, chromium, molybdenum, copper and carbon. The ultra-low-carbon design eliminates intergranular corrosion. Its corrosion rate in sulfuric acid, phosphoric acid, chloride mixed acid, H₂S sour gas, seawater and desulfurization media is far lower than 316L and 310S stainless steel. It can replace high-cost nickel-based alloys to balance corrosion resistance and cost performance.

2. Ultra-high stable surface quality: Adopt special precision rolling and mirror polishing technology dedicated to corrosion-resistant alloys to achieve ultra-high flatness and finish of bars. Smooth surface reduces friction loss during machining, avoids pitting corrosion and stress concentration caused by surface defects to extend service life of parts. Supporting passivation treatment improves long-term rust and corrosion resistance.

3. Strictly controlled dimensional accuracy: Equipped with imported precision rolling equipment and automatic dimensional & PMI inspection instruments to realize narrow dimensional tolerances. Single bar owns high dimensional accuracy, and dimensional difference within the same batch is extremely small with excellent uniformity. It ensures consistent specifications during mass production and raises processing efficiency and finished product qualification rate.

4. Rich product variety: According to market demand and customer's special requirements, customized products are provided to meet the use requirements under various complex working conditions, providing customers with more choices.

5. Perfect after-sales service: The perfect after-sales service system can respond to customer needs and feedback in a timely manner. For problems encountered by customers during use, technical support and solutions are provided to customers quickly.

We mainly engage in cold heading wire, bar, peeled bar, and profiled bar; our products cover 11 series and more than 300 grades, and we continue to develop a variety of professional steels. We can provide all-round solutions such as cold heading finishing line manufacturing and high-precision bright bar customization, and provide one-stop procurement services and package procurement solutions for global customers. The website displays some grades. If you don’t have the grade you need, please contact us by phone or email.