317L is an ultra-low carbon high-molybdenum austenitic stainless steel bright bar 
Higher molybdenum forms dense passivation film with higher PREN value than 316L, delivering superior resistance to pitting, crevice corrosion and chloride stress corrosion cracking, suitable for medium-high chloride, phosphoric acid and dilute sulfuric acid wet corrosive environments. Ultra-low carbon restrains chromium carbide precipitation between 425~850℃, eliminating intergranular corrosion sensitization after welding, no post-weld solution annealing required for thick welded components.

Chemical element content (%)

Specification：1.00~300.00mm

Application: It is mainly used to manufacture pulp bleaching valve spools, hydrometallurgy corrosion-resistant shafts, FGD heat exchanger mandrels for power plants, stressed bars for dilute phosphoric & sulfuric acid reactors, high-chloride water treatment valve bodies, medium-corrosion seawater pipe flanges, food high organic acid equipment connectors, waste incineration desulfurization anti-corrosion fasteners, chemical micro-corrosion transmission pipes, bolts for paper bleaching systems, etc.
Widely applied in paper bleaching production lines, hydrometallurgy extraction units, thermal power plant flue gas desulfurization systems, phosphorus chemical equipment, high-salt wastewater treatment facilities, coastal medium-corrosion heat exchange devices, fine chemical acid medium production lines, complete environmental anti-corrosion equipment and other industries.

Core Advantages Over Competitors

1. High quality stability: Full closed-loop production and online spectral non-destructive inspection strictly control key alloy elements C, Cr, Ni, Mo, with molybdenum stably qualified and carbon strictly limited ≤0.03%. Uniform segregation-free austenitic microstructure ensures negligible batch fluctuation of pitting resistance, weldability and mechanical properties for consistent mass production of desulfurization and paper-making corrosive parts.

2. Excellent surface quality: Dedicated high-precision cold drawing and centerless grinding lines produce bars free of peeling, oxide scale, scratches and pits with mirror finish. Smooth surface reduces tool wear and chloride-induced surface stress concentration to greatly extend fatigue life of parts under bleaching and desulfurization acid environments; secondary polishing is unnecessary for most precision machining.

3. Ultra-high dimensional accuracy: Precision cold rolling mills and automatic online dimension detectors narrow tolerance range with tiny single-bar error and strong batch uniformity. Unified part specifications during automatic mass production significantly raise finished yield and machining precision.

4. Rich product variety: According to market demand and customer's special requirements, customized 317L 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.