Stainless Steel Round Bar & Die Steel Sheet China (4140, En19, Scm440, 4340, 42CrMo4) - Tool Steel
As a professional Chinese manufacturer of tool steel products, we specialize in supplying high-quality stainless steel round bars and die steel sheets, covering popular grades including 4140, EN19, SCM440, 4340 and 42CrMo4. Our products are widely recognized in global markets for their excellent mechanical properties, stable quality and versatile applications, serving as essential materials in various industrial fields such as machinery manufacturing, mold processing, aerospace and automotive.
Our stainless steel round bars are precision-manufactured with high-grade stainless steel, featuring smooth surfaces, uniform diameters and excellent corrosion resistance, which can effectively resist rust and wear even in harsh working environments. Available in various specifications and grades, they are divided into hot-rolled and cold-drawn types to meet different processing needs — hot-rolled round bars are suitable for large-scale structural parts, while cold-drawn ones are ideal for precision components requiring high dimensional accuracy. These round bars boast good ductility and machinability, making them easy to cut, drill, weld and polish, widely used in the production of fasteners, shafts, gears and mechanical parts.
Our die steel sheets are high-performance tool steel products, mainly available in grades 4140, EN19, SCM440, 4340 and 42CrMo4, each with unique properties to adapt to different working conditions. 4140 (equivalent to 42CrMo4 in European standards and SCM440 in Japanese standards) is a versatile chromium-molybdenum steel with excellent hardenability, high strength and good toughness, widely used in manufacturing molds, hydraulic parts and automotive drive shafts[3]. EN19 is a high-strength alloy steel with outstanding wear resistance, suitable for heavy-duty die components; 4340 is a high-strength low-alloy steel with excellent fatigue resistance and low notch sensitivity, ideal for aircraft landing gear and high-load mechanical parts.
All our steel products are produced in strict accordance with international standards and advanced production processes, with strict quality control from raw material selection to finished product inspection. We adopt precision casting and rolling technology to ensure that each product meets the requirements of dimensional accuracy and mechanical properties. Our products are non-toxic, environmentally friendly and comply with international environmental protection standards, suitable for long-term use in various industrial scenarios. In addition, we have a complete production and supply system, similar to professional manufacturers with integrated R&D, production and sales capabilities, ensuring stable supply and timely delivery.
We offer comprehensive customization services to meet your specific needs. Whether you need stainless steel round bars and die steel sheets of specific grades, sizes, thicknesses or surface treatments (such as polishing, galvanizing), we can tailor-make products to match your project requirements. With years of experience in tool steel production and export, we are committed to providing high-quality, cost-effective steel products and professional after-sales service to customers around the world, establishing long-term and stable cooperative relationships with partners in various countries and regions.
