316L  is an ultra-low carbon molybdenum-bearing austenitic stainless steel bright bar, low-carbon upgraded grade based on 316. Carbon content is strictly controlled ≤0.03%.
Molybdenum forms dense passivation film and greatly improves resistance to pitting & crevice corrosion, delivering far better performance against seawater, salt spray and chloride media than 304 and standard 316. Its core ultra-low carbon merit restrains chromium carbide precipitation at grain boundaries between 450~850℃, eliminating intergranular corrosion sensitization after welding. Thick sections and continuous weldments retain full corrosion resistance without post-weld solution annealing, solving the rust defect of 316 weld joints.
It features balanced room-temperature mechanical properties, stable tensile & yield strength, outstanding plasticity, deep drawability and cold heading performance. Uniform plastic deformation occurs under load without brittle fracture risk. It cannot be hardened by heat treatment; cold working induces work hardening, while high toughness can be restored via solution rapid cooling at 1020~1120℃.
It boasts excellent thermoplasticity for smooth hot rolling & high-temperature forging, supports cold forming including bending, cold heading and stamping, and fits stable CNC turning, milling and automatic lathe processing. Combining broad-spectrum corrosion resistance, premium weldability and wide-range toughness, it is the preferred core raw material for welded precision parts in chemical, marine, medical, food and water treatment industries.

Chemical element content (%)

Specification：1.00~300.00mm

Application: It is mainly used to manufacture seawater equipment shafts, chemical fluid valve stems, medical precision instrument mandrels, food sanitary connectors, seawater desalination pipe flanges, environmental desulfurization fasteners, pharmaceutical valve spools, coastal outdoor hardware, corrosion-resistant heat exchanger mandrels, small marine seawater fittings, welded stainless steel bolts & nuts, etc.
Widely applied in seawater desalination projects, marine ship equipment, fine chemical units, medical devices, food & pharmaceutical production lines, power plant flue gas desulfurization, coastal water treatment facilities, HVAC seawater heat exchange and outdoor anti-corrosion equipment industries.

Core Advantages Over Competitors

1. High quality stability: Full closed-loop production and online spectral non-destructive inspection strictly control key elements C, Cr, Ni, Mo, Si, Mn with carbon stably ≤0.03%. Uniform segregation-free austenitic microstructure ensures negligible batch fluctuation of corrosion resistance, weldability and mechanical properties for consistent mass production of welded components.

2. Excellent surface quality: Dedicated high-precision cold drawing & centerless grinding lines produce bars free of scale, scratches and pits with mirror finish. Smooth surface reduces tool wear and chloride-induced surface stress concentration to greatly extend fatigue life under seawater & salt spray service; 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 raise finished yield and machining precision.

4. Rich product variety: According to market demand and customer's special requirements, customized 316L 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.