Cr12MoV Tool Steel / GOST X12MФ Steel
Cr12MoV represents the pinnacle of high-performance cold-work tool steels, meticulously engineered and refined through advanced metallurgical processes. Its foundation lies in high carbon (C) and high chromium (Cr) content, enhanced by the strategic addition of molybdenum (Mo) and vanadium (V). This unique composition establishes its preeminent status within the tool steel spectrum. Molybdenum markedly enhances the steel’s high-temperature strength and resistance to tempering softening, while vanadium further refines the grain structure, boosting toughness and secondary hardening effects. The synergistic action of these four key elements collectively endows Cr12MoV with exceptional hardness, wear resistance, and impact toughness, making it the ideal choice for demanding cold work applications.
Product Description
Xiri Tool Steel is a leading supplier of Cr12MoV tool steel (GOST X12MФ) in China. Cr12MoV represents the pinnacle of high-performance cold-work tool steels, meticulously engineered and refined through advanced metallurgical processes.
Whether you need Cr12MoV flat bars, X12MФ steel plates, or forged rounds, we provide custom dimensions with machining or grinding services. Our materials are strictly tested to ensure premium metallurgical structure.
Cr12MoV is a type of cold-worked tool steel with high carbon and high chromium content. It possesses extremely high wear resistance and excellent hardenability, and is widely used in the manufacturing of cold stamping and forming molds that are subjected to heavy loads and require high wear resistance.
Chemical Composition of Cr12MoV / GOST X12MФ tool steel
| C | Si | Mn | Cr | P | S | Mo | V |
| 1.45-1.70 | ≤0.40 | ≤0.40 | 11.00-12.50 | max 0.030 | max 0.030 | 0.40-0.60 | 0.15-0.30 |
Supply Form & Size Range of Cr12MoV / GOST X12MФ tool steel
We supply Cr12MoV / GOST X12MФ steel in various forms to meet your manufacturing needs:
Round bar: Diameter 5mm – 690mm
Steel Plate / Flat: Thickness 5mm – 400mm x Width 100mm – 800mm
Surface: Black, Peeled, Rough machined or Grinded.
Delivery Condition: Annealed (Hardness 255 HB max.)
Core Performance Advantages of Cr12MoV X12MФ tool steel
Exceptional Wear Resistance, Long-Lasting Stability: Benefiting from its high-carbon, high-chromium composition, Cr12MoV exhibits extraordinary hardness and wear resistance. It effectively withstands continuous punching, shearing, and stretching of high-strength materials like silicon steel sheets and low-carbon steel plates, significantly extending mould service life and reducing downtime for replacements.
Exceptional Compressive Strength, Heavy-Duty Performance: Superior hardenability and the effects of strengthening elements endow Cr12MoV with outstanding compressive strength. During demanding processes like blanking, cold forging, and precision forming, it withstands immense impact forces without deformation or fracture, ensuring safe and reliable operation under heavy loads.
Excellent Heat Treatment Stability and Dimensional Accuracy: Cr12MoV exhibits good hardenability and dimensional stability. Following meticulous heat treatment, it exhibits minimal deformation, maintaining precise dimensions and superior performance over extended periods, providing reliable assurance for high-precision blanking dies.
A Delicate Balance of Toughness and Hardness: The optimised alloy composition (particularly the addition of vanadium) ensures high hardness while imparting good toughness to the material. This effectively reduces the risk of brittle fracture under complex operating conditions, enhancing overall reliability.
Cr12MoV Cold Work Tool Steel Applications
It is precisely through this outstanding combination of properties that Cr12MoV tool steel demonstrates formidable applicability across numerous demanding cold-working tooling fields:
Precision Stamping/Cutting Dies: High-precision, high-volume stamping and blanking of thin metal sheets for automotive components, electronic connectors, lead frames, and similar applications.
High-Strength Shearing/Cutting Tools: Sharp cutting edges for shearing silicon steel sheets, stainless steel plates, aluminium sheets, etc., such as shear blades and trimming dies.
Cold Extrusion/Forging Dies: Used for cold extrusion forming and forging of standard components, bearing rings, and complex-shaped parts.
Drawing/Bending Dies: Die components for deep-drawn products like stainless steel vessels and beverage can bodies.
Gauges, measuring tools and industrial wear parts: Precision instruments, fixture bushings and other industrial components demanding exceptional wear resistance.
Our advantages in Processing Cr12MoV Tool Steel
Outstanding material properties hinge on rigorous production control and quality assurance systems. Recognising that tool steel quality is vital to your production, we implement comprehensive quality control from raw materials to finished products:
Source Control: Premier Melting Processes Employing advanced Electric Arc Furnace (EAF) or Ultra-High Power Electric Arc Furnace (UHP) melting technologies, combined with ladle refining (e.g., LF furnace) and vacuum degassing (VD/VOD) processes. This rigorously removes harmful gases (hydrogen, oxygen, nitrogen) and inclusions from molten steel, ensuring high material purity alongside uniform and precise chemical composition.
Dense Structure: Precision forged billets undergo multi-directional repeated forging at elevated temperatures. This process thoroughly disrupts porosity and dendrites within the cast structure, eliminating internal defects. This significantly enhances material density, uniformity, and isotropy (consistent properties in all directions).
Core Essence: Advanced Heat Treatment Technology Precise control of quenching and multiple tempering parameters (temperature, duration, cooling rate) yields ideal matrix structures (e.g., high-carbon martensite) and uniformly dispersed high-hardness carbides. Dual vacuum heat treatment (vacuum quenching + vacuum tempering) marks the hallmark of premium quality, effectively preventing oxidation and decarburisation while safeguarding surface finish and dimensional accuracy.
Rigorous Validation: Multi-dimensional Quality Inspection
Each batch undergoes:
Chemical Composition Analysis: Ensures elemental content meets stringent standards.
Hardness/Mechanical Properties Testing: Precisely evaluates critical post-quenching/tempering metrics including hardness, flexural strength, and impact toughness.
Metallographic examination: High-magnification microscopy assesses carbide morphology, size, distribution, and matrix structure—crucial indicators of heat treatment quality and intrinsic material performance.
Ultrasonic flaw detection: Thoroughly scans for internal cracks, inclusions, and other macro defects, guaranteeing reliable core integrity.
Not sure about the best equivalent for your application?
Why Manufacturers Choose Huangshi Xiri
Huangshi Xiri combines international-standard steel grades, a complete tool steel portfolio, strict quality control and reliable global supply. We match DIN / JIS / AISI equivalents precisely, offer cutting and heat-treatment services, and control every step from smelting to inspection. With stable capacity, on-time delivery and responsive technical support, we help manufacturers reduce risk, save costs and run production with confidence.
Contact Us
Contact Huangshi Xiri today for quotations, grade selection and technical support on tool steel, mold steel and alloy steel. Whether you need samples, cutting-to-size service or long-term supply for your projects, our engineers and sales team are ready to respond quickly with professional advice and reliable solutions for your manufacturing needs.
