Spherical Latrobe CM-52™ ASTM M52 High Speed Steel Powder

Latrobe CM-52™ ASTM M52 High Speed Steel Spherical Powder Product Information -:- For detailed product information, please contact sales. -: Latrobe CM-52™ ASTM M52 High Speed Steel Spherical Powder Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical Latrobe CM-52™ ASTM M52 High Speed Steel Powder characteristics -:- For detailed product information, please contact sales. -: Spherical Latrobe CM-52™ ASTM M52 High Speed Steel Powder 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 Latrobe CM-52™ ASTM M52 High Speed Steel Powder 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 Latrobe CM-52™ ASTM M52 High Speed Steel Powder Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Latrobe CM-52™ ASTM M52 High Speed Steel Product Information -:- For detailed product information, please contact sales. -: # **Latrobe CM-52™ ASTM M52 High Speed Steel** ## **Premium High-Carbon, High-Vanadium Molybdenum HSS for Enhanced Wear Resistance** Latrobe CM-52™ M52 is an advanced, cobalt-free molybdenum-based high-speed steel engineered to deliver superior wear resistance and cutting performance for demanding tooling applications. As an ASTM A600 M52 grade, it represents a specialized evolution of the M50 family with significantly higher carbon and vanadium content, making it particularly suitable for applications requiring enhanced abrasion resistance without the cost premium of cobalt alloys. CM-52™ is specifically designed for cutting tools and wear components where maximum wear life is critical in moderately elevated temperature conditions. --- ### **Key Features & Benefits** - **Enhanced Wear Resistance**: Elevated carbon and vanadium content provides superior abrasion resistance compared to standard M50 - **Good Hot Hardness**: Maintains cutting edge integrity at temperatures up to 480°C (900°F) without cobalt addition - **Cost-Effective Performance**: Delivers premium wear characteristics without cobalt premium - **Good Toughness**: Balanced composition maintains reasonable impact resistance for interrupted cutting operations - **Excellent Grindability**: Despite higher wear resistance, maintains good manufacturability - **Dimensional Stability**: Predictable heat treatment response with minimal distortion --- ### **Chemical Composition (Typical %, ASTM A600 M52)** | Element | Carbon (C) | Molybdenum (Mo) | Chromium (Cr) | Vanadium (V) | Tungsten (W) | Other | |---------|------------|-----------------|---------------|--------------|--------------|-------| | **Content** | 0.85 - 0.95 | 4.00 - 4.50 | 3.50 - 4.00 | 1.65 - 2.25 | 0.75 - 1.25 | Si: 0.20-0.45
Mn: 0.15-0.40 | *Note: The "CM-52" designation represents an enhanced version of M50 with controlled higher carbon and vanadium. The composition is specifically optimized for maximum wear resistance in a cobalt-free formulation, with vanadium nearly double that of standard M50.* --- ### **Physical & Mechanical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 8.12 g/cm³ | | **Thermal Conductivity** | 25-28 W/m·K at 20°C | | **Specific Heat Capacity** | 0.46 kJ/kg·K at 20°C | | **Coefficient of Thermal Expansion** | 10.9 × 10⁻⁶/K (20-400°C) | | **Hardness (Annealed)** | 215-240 HB | | **Hardness (Heat Treated)** | **64-66 HRC** (typical working range) | | **Hot Hardness Retention** | Maintains adequate hardness up to 480°C (900°F) | | **Transverse Rupture Strength** | 3,600-4,200 MPa (at 65 HRC) | | **Compressive Strength** | 3,700-4,300 MPa (at 65 HRC) | | **Modulus of Elasticity** | 215-225 GPa | | **Impact Toughness** | Good – balanced for cutting tool applications | --- ### **Heat Treatment Guidelines** #### **Annealing** - **Temperature**: 840-870°C (1545-1600°F) - **Method**: Slow furnace cool at ≤20°C (36°F) per hour to 600°C (1110°F), then air cool - **Resultant Hardness**: 215-240 HB #### **Stress Relieving** - **Temperature**: 650-675°C (1200-1245°F) - **Hold Time**: 1-2 hours per inch of thickness - **Cooling**: Air cool to room temperature #### **Hardening** 1. **Preheating**: 810-840°C (1490-1545°F) – thorough equalization recommended 2. **Second Preheat**: 980-1010°C (1795-1850°F) – beneficial for complex tools 3. **Austenitizing**: **1205-1225°C (2205-2235°F)** – precise control important 4. **Quenching**: Oil quenching preferred; air cooling suitable for thin sections 5. **Immediate Handling**: Cool to 50-65°C (120-150°F) before tempering #### **Tempering** - **Temperature Range**: 540-580°C (1005-1075°F) - **Cycles**: **Double or triple tempering recommended** - **Duration**: Minimum 2 hours per cycle, air cool between cycles - **Target Hardness**: 64-66 HRC typically achieved at 540-560°C (1005-1040°F) - **Special Characteristic**: Good secondary hardening response despite cobalt-free composition --- ### **International Standards & Equivalent Grades** | Standard | Grade Designation | Notes | |----------|-------------------|-------| | **ASTM** | A600 M52 | Primary specification | | **AMS** | No direct equivalent | Often used per customer specifications | | **DIN** | 1.3265 (Approximate) | German standard reference | | **ISO** | Not specifically standardized | Considered a specialty HSS grade | | **UNS** | T11352 | Unified Numbering System | | **AISI** | M52 | American Iron and Steel Institute | | **Proprietary** | CM-52™ | Latrobe Special Steel designation | --- ### **Typical Applications** #### **High-Performance Cutting Tools** - **End Mills**: General purpose and high-performance end mills requiring enhanced wear resistance - **Drills**: Twist drills and core drills for abrasive materials - **Taps & Thread Mills**: Threading tools for production environments requiring longer tool life - **Reamers & Boring Tools**: Precision finishing tools requiring good edge retention - **Gear Cutting Tools**: Hobs and shaper cutters for moderate production volumes - **Form Tools & Cutters**: Complex shaped tools requiring good wear characteristics #### **Specialized Wear Components** - **Wear Plates & Guides**: Components subject to abrasive wear in machinery - **Punches & Dies**: Cold work tooling for moderate production runs - **Knives & Blades**: Industrial cutting blades for mixed material applications - **Bearing Components**: Specialized bearing applications requiring enhanced wear resistance #### **Industry-Specific Uses** - **Automotive Manufacturing**: Tools for machining cast iron, mild steels, and some alloy steels - **General Machining**: Versatile tools for job shops and production environments - **Plastics Processing**: Cutting tools for abrasive filled plastics - **Woodworking**: Tools for composite materials and abrasive woods --- ### **Machining & Fabrication Notes** #### **Machinability (Annealed Condition)** - **Rating**: 45-55% of B1112 free-machining steel - **Recommended Tools**: HSS or carbide tools both suitable - **Cutting Speeds**: 10-15 m/min (30-50 SFM) for turning operations - **Feed Rates**: Moderate feeds with good chip control - **Coolant**: Standard soluble oils or synthetic coolants adequate - **Note**: Higher vanadium content requires sharp cutting tools #### **Grindability** - **Relative Rating**: 55-65 (vs. 100 for annealed O1 tool steel) - **Abrasive Recommendations**: Aluminum oxide or ceramic alumina wheels - **Wheel Maintenance**: Regular dressing recommended - **Coolant**: Adequate coolant flow important - **Advantage**: Better grindability than cobalt-bearing grades with similar wear resistance --- ### **Quality Assurance & Metallurgical Standards** #### **Microstructural Requirements** - **Carbide Distribution**: Uniform dispersion of fine vanadium carbides - **Carbide Characteristics**: Fine MC-type carbides from vanadium addition - **Grain Size**: ASTM 8 or finer - **Decarburization**: ≤0.10 mm per side on finished products - **Non-Metallic Inclusions**: ASTM E45 Method A, ≤2.0 total rating #### **Testing & Certification** - Full chemical analysis verification - Hardness testing throughout production - Microstructural evaluation available upon request - Standard material test reports with shipments - Special testing for specific applications available --- ### **Available Product Forms** | Form | Standard Sizes | Condition | Surface Finish | |------|---------------|-----------|---------------| | **Round Bars** | 5mm - 250mm diameter | Annealed | Black, Peeled, Ground | | **Flat Bars** | 6-150mm thickness | Annealed | Mill, Ground | | **Squares** | 6-100mm | Annealed | As-rolled, Ground | | **Forged Blanks** | Custom dimensions | Annealed | As-forged, Rough machined | | **Wire** | 1-10mm diameter | Annealed | Bright, Polished | --- ### **Technical Comparison** | Property | CM-52™ M52 | M50 | M2 | M35 (5% Co) | |----------|-------------|-----|----|-------------| | **Wear Resistance** | **Very Good** | Good | Very Good | Very Good | | **Hot Hardness** | Good | Good | Excellent | Excellent | | **Toughness** | Good | Very Good | Good | Good | | **Cost Effectiveness** | **Excellent** | Very Good | Good | Fair | | **Primary Advantage** | Wear resistance without cobalt | Bearing applications | Balanced | Hot hardness | | **Relative Cost** | Moderate | Moderate | Moderate | High | --- ### **Economic Advantages** 1. **Material Cost**: Typically 20-30% less expensive than equivalent cobalt-bearing grades 2. **Performance Value**: Excellent wear resistance without cobalt premium 3. **Tool Life**: Superior to standard M50 in abrasive conditions 4. **Manufacturing Cost**: Good grindability reduces fabrication time 5. **Overall Value**: Optimal choice when cobalt's hot hardness is unnecessary but enhanced wear resistance is required --- ### **Special Considerations** 1. **Temperature Limitations**: Maximum operating temperature lower than cobalt grades 2. **Application Specific**: Best suited for applications not requiring extreme hot hardness 3. **Heat Treatment**: Requires careful control to optimize vanadium carbide formation 4. **Performance Balance**: Offers excellent compromise between performance and cost --- ### **Storage & Handling** 1. **Storage Conditions**: Standard warehouse conditions acceptable 2. **Corrosion Protection**: Standard rust preventive adequate 3. **Handling**: Normal material handling procedures apply 4. **Identification**: Clearly marked with grade and heat number 5. **Shelf Life**: Standard industrial storage life with basic protection --- **Select Latrobe CM-52™ ASTM M52 High Speed Steel** when your applications require enhanced wear resistance beyond standard M50 capabilities but do not justify the additional cost of cobalt-bearing grades. This specialized high-carbon, high-vanadium molybdenum HSS delivers premium wear characteristics for cutting tools and wear components operating in moderately demanding conditions. CM-52™ represents an optimal economic and performance solution for applications where abrasion resistance is the primary concern and extreme hot hardness is not required. For tools and components requiring extended wear life without cobalt's cost premium, CM-52™ provides exceptional value and reliable performance. -:- For detailed product information, please contact sales. -: Latrobe CM-52™ ASTM M52 High Speed Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7159 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. -: Latrobe CM-52™ ASTM M52 High Speed Steel Properties -:- For detailed product information, please contact sales. -:

Spherical Latrobe CM-52™ ASTM M52 High Speed Steel Powder Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical Latrobe CM-52™ ASTM M52 High Speed Steel Powder -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of Latrobe CM-52™ ASTM M52 High Speed Steel Spherical Powder -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe CM-52™ ASTM M52 High Speed Steel Spherical Powder -:- For detailed product information, please contact sales. -:

Packing of Latrobe CM-52™ ASTM M52 High Speed Steel Spherical Powder -:- 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 3630 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