Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC)

InduSteel Spherical Powder CLC 1.2311 Prehardened Mold Steel Spherical Powder (300HB/30HRC) Product Information -:- For detailed product information, please contact sales. -: InduSteel Spherical Powder CLC 1.2311 Prehardened Mold Steel Spherical Powder (300HB/30HRC) Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) characteristics -:- For detailed product information, please contact sales. -: Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Industeel CLC 1.2311 Prehardened Mold Steel (300HB/30HRC) Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Industeel CLC 1.2311 Prehardened Mold Steel** ## **1. Overview** **Industeel CLC 1.2311** is a high-grade, **prehardened chromium-molybdenum alloy steel** specifically manufactured for plastic injection molds and general-purpose tooling. Supplied in a **quenched and tempered condition** with a guaranteed hardness of **300 HB (30 HRC)**, this steel offers excellent **machinability, polishability, and uniform through-thickness properties** directly from the mill. As a premium version of the widely recognized DIN 1.2311 standard (equivalent to AISI P20 modified), CLC 1.2311 is distinguished by its superior **internal cleanliness, homogeneity, and dimensional stability**, making it particularly suitable for medium-to-large mold bases, cavities, and cores where reliability and consistent performance are paramount. ## **2. International Standards & Specifications** This material conforms to and exceeds the requirements of major international mold steel standards. * **Primary Standard:** * **DIN 1.2311 / EN ISO 4957 35CrMo2:** The defining European standard for prehardened plastic mold steel. * **Key International Equivalents:** * **AISI P20 Modified (UNS T51620):** American equivalent. * **JIS G4404 SCM 440 Modified:** Japanese standard with similar characteristics. * **GB/T 1299 3Cr2Mo:** Chinese national standard. * **Common Trade Names:** Often marketed as **GS-738, 1.2311, or P20 prehardened**. * **Manufacturer's Designation:** * **Industeel CLC 1.2311:** The proprietary designation indicating **CLC (Cleanliness and Consistency)** quality, representing enhanced metallurgical control and uniformity beyond standard 1.2311 grades. ## **3. Chemical Composition (Weight %, per DIN 1.2311)** The composition is balanced for optimal hardenability, machinability, and polishability in the prehardened state. | Element | Composition Range (%) | Role & Benefit | |---------|----------------------|----------------| | **Carbon (C)** | 0.33 – 0.40 | Provides fundamental strength and hardness while maintaining good toughness. | | **Chromium (Cr)** | 1.80 – 2.10 | Enhances hardenability for uniform through-thickness properties and improves mild corrosion resistance. | | **Molybdenum (Mo)** | 0.15 – 0.25 | Critical for hardenability in thick sections, improves toughness and tempering resistance. | | **Manganese (Mn)** | 1.40 – 1.60 | Enhances hardenability and strength, works with sulfur to improve machinability. | | **Silicon (Si)** | 0.20 – 0.40 | Deoxidizer and solid solution strengthener. | | **Sulfur (S)** | ≤ 0.005 (Standard CLC quality) | Kept very low to ensure **excellent polishability, weldability, and isotropic mechanical properties**. This is a key feature of the CLC quality. | | **Phosphorus (P)** | ≤ 0.025 | Impurity, kept low for optimal toughness. | ## **4. Typical Physical & Mechanical Properties (As Prehardened)** * **Delivery Condition:** Quenched and tempered at the mill, ready for machining. * **Guaranteed Hardness:** **290 – 320 HB (30 – 32 HRC)** – Uniform throughout the cross-section (typically guaranteed up to 1000mm thickness). * **Tensile Strength:** 1000 – 1100 MPa (145,000 – 160,000 psi) * **Yield Strength (0.2% Offset):** 850 – 950 MPa (123,000 – 138,000 psi) * **Elongation:** ≥ 12% (in 50mm) * **Impact Toughness (Charpy V-Notch):** ≥ 25 J (18 ft-lb) at room temperature * **Machinability:** **Excellent** – Rated 80-85% of 1% carbon steel. Good chip formation and surface finish. * **Polishability:** **Excellent** – The low sulfur content and homogeneous CLC structure enable achievement of high surface finishes (SPI #A2-A3). * **Weldability:** **Good** – Requires preheat (250-350°C) and post-weld stress relief. Use low-hydrogen electrodes. * **Physical Properties:** * **Density:** 7.85 g/cm³ * **Modulus of Elasticity:** 210 GPa (30.5 × 10⁶ psi) * **Thermal Conductivity:** 36 W/m·K (at 20°C) * **Coefficient of Thermal Expansion:** 11.5 × 10⁻⁶/°C (20–100°C) * **Specific Heat Capacity:** 460 J/kg·K ## **5. Product Application** CLC 1.2311 is the industry-standard material for a wide range of plastic injection molds and general tooling applications. * **Plastic Injection Molds:** * **Mold bases, cavities, and cores** for automotive components (interior/exterior trim, housings) * **Appliance and consumer goods molds** * **Technical parts and packaging molds** * **Molds for engineering plastics** (ABS, PP, PC, PA, POM) * **Blow Molds:** * **PET bottle and container molds** * **Die Casting Tooling:** * **Backing plates, support pillars, and holder blocks** for aluminum and zinc die-casting dies * **General Tooling:** * **Jigs, fixtures, and gauges** * **Machine components and wear plates** ## **6. Key Features & Advantages of CLC Quality** * **No Heat Treatment Required:** Eliminates distortion risks and reduces manufacturing lead time. * **Exceptional Homogeneity and Cleanliness:** The CLC manufacturing process ensures minimal segregation and inclusion content, resulting in: * **Isotropic mechanical properties** (uniform in all directions) * **Superior polishability** with reduced risk of pitting or defects * **Consistent machinability** throughout the material * **Guaranteed Through-Hardness:** Uniform hardness distribution even in large cross-sections (up to 1000mm). * **Excellent Machinability:** Enables high productivity with good surface finishes and extended tool life. * **Good Weldability and Repairability:** Allows for mold modifications and repairs using standard procedures. * **High Dimensional Stability:** Minimal distortion during machining ensures accuracy in complex geometries. * **Good Nitriding Response:** Can be surface hardened via gas or plasma nitriding to achieve surface hardness of 600-800 HV for enhanced wear resistance. * **Proven Reliability:** Decades of successful application in demanding mold manufacturing worldwide. ## **7. Processing Guidelines** * **Machining:** Use sharp carbide tools with positive rake angles. Recommended cutting speeds: 100-150 m/min for turning, 80-120 m/min for milling. * **Electrical Discharge Machining (EDM):** Performs well with standard EDM parameters. A stress-relief treatment (180-200°C for 2-4 hours) is recommended after rough EDM for critical applications. * **Welding:** Preheat to 250-350°C. Use low-hydrogen electrodes (AWS E7018 or equivalent). Post-weld heat treatment at 450-500°C for stress relief is recommended. * **Polishing:** Follow standard polishing sequences. The CLC quality enables efficient progression to high-gloss finishes. * **Stress Relief:** For critical precision molds, a stress relief treatment (500-550°C for 2 hours per 25mm thickness) after rough machining is recommended. **Summary:** Industeel CLC 1.2311 represents the pinnacle of standard prehardened mold steel technology, offering the perfect balance of machinability, polishability, and mechanical properties for the majority of plastic injection mold applications. The CLC quality designation ensures superior internal cleanliness and homogeneity, translating to more predictable performance, better surface finishes, and extended tool life. As a reliable, readily available, and well-understood material, it continues to be the first choice for mold makers worldwide seeking consistent results and proven performance in demanding production environments. -:- For detailed product information, please contact sales. -: Industeel CLC 1.2311 Prehardened Mold Steel (300HB/30HRC) Specification Dimensions Size： Diameter 20-1000 mm Length <7041 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Industeel CLC 1.2311 Prehardened Mold Steel (300HB/30HRC) Properties -:- For detailed product information, please contact sales. -:

Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical InduSteel Powder CLC 1.2311 Prehardened Mold Steel Powder (300HB/30HRC) -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of InduSteel Spherical Powder CLC 1.2311 Prehardened Mold Steel Spherical Powder (300HB/30HRC) -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Spherical Powder CLC 1.2311 Prehardened Mold Steel Spherical Powder (300HB/30HRC) -:- For detailed product information, please contact sales. -:

Packing of InduSteel Spherical Powder CLC 1.2311 Prehardened Mold Steel Spherical Powder (300HB/30HRC) -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Spherical Powder drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3512 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition