00Cr17MoS is an ultra-low carbon molybdenum-sulfur free-machining ferritic stainless steel bright bar, with carbon ≤0.025%, chromium 16.0%~19.0% and molybdenum 0.75%~1.25%. Higher sulfur content is added to optimize machinability, serving as a free-machining improved grade based on 00Cr17Mo. Nickel-free, it features ferritic soft magnetic property. It has balanced comprehensive mechanical properties, moderate tensile and yield strength, stable load-bearing capacity and excellent plasticity & deep drawability. Appropriate deformation occurs under force to avoid brittle fracture. The ultra-low carbon formula restrains carbide precipitation during welding and eliminates intergranular corrosion sensitization. Molybdenum strengthens the passivation film, delivering far better resistance to chloride ions, pitting, salt spray and mild acid & alkali corrosion than standard 00Cr17S. Sulfur acts as solid lubricant to greatly improve chip breaking, sharply reducing tool wear in automatic lathes, CNC turning, milling and drilling, and greatly boosting processing efficiency. It boasts good thermoplasticity for hot working with smooth hot rolling and forging to fabricate various precision blanks and electromagnetic valve components. Only slight work hardening appears in cold working for stable cold heading and bending. Cold drawing & centerless grinding produce bars with ultra-high surface finish and precise dimensional accuracy. Combining high corrosion resistance, superior free-machinability, soft magnetism and low cost, it is the special core raw material for solenoid valve iron cores, precision fluid valve stems and automatic fasteners under mildly corrosive environments.

Specification：1.00~300.00mm

Application:It is mainly used to manufacture moving & static solenoid valve iron cores, corrosion-resistant precision valve stems, instrument valve spools, stainless steel bolts & nuts, small hydraulic valve fittings, plumbing pipe joints, anti-corrosion food equipment connectors, outdoor electronic control hardware, miniature heat exchanger shafts, etc. Widely applied in automotive fluid solenoid valves, kitchen & bathroom control valves, water treatment valves, coastal mildly corrosive equipment, automatic precision instruments, HVAC heat exchange equipment, small chemical transmission components and other industries.

Core Advantages Compared with Other Brands

1. High quality stability: Adopt complete strict production procedures and full-process online quality inspection with closed-loop control covering raw material screening to finished product delivery. Precisely control key chemical elements including carbon, chromium, molybdenum, sulfur, silicon and manganese to fully meet national material standards. Batch fluctuation of corrosion resistance, cutting performance and soft magnetism is negligible to guarantee consistent dimension and performance of mass-produced parts, suitable for large-batch automatic CNC machining.

2. Excellent surface quality: Equipped with dedicated high-precision cold drawing and centerless grinding production lines to achieve leading flatness and finish. Smooth surface reduces machining friction and improves processing efficiency, eliminates stress concentration caused by surface defects and extends component fatigue life. Exclusive passivation surface treatment strengthens anti-rust and salt-spray resistance for long-term corrosion resistance under humid and chloride-containing environments.

3. Ultra-high dimensional accuracy: Precision forming equipment and automatic online dimensional testing instruments narrow dimensional tolerance range. Each single bar has tiny dimensional error with extremely strong dimensional uniformity within the same batch, realizing unified part specifications during batch CNC machining and raising production yield and finished product precision.

4. Diverse product specifications: Customized 00Cr17MoS bright bars are available based on general market demands and customers’ special working conditions including corrosion, magnetism and automatic cutting requirements, fitting multiple scenarios such as automobile, fluid valves, food and outdoor equipment, offering personalized material selection solutions.

5. Comprehensive after-sales service: Timely response to customer inquiries, processing and service feedback. Professional technical support and complete matching solutions will be provided promptly for issues such as poor chip breaking, unqualified magnetism, salt spray corrosion failure and welding rust.

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.