PSM Industries,PM Krupp T-42 HV Powder Metallurgy Steel Rod/Bar Alloy

PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Rod Alloy Product Information -:- For detailed product information, please contact sales. -: PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Rod Alloy Synonyms -:- For detailed product information, please contact sales. -:

PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Alloy Product Information -:- For detailed product information, please contact sales. -: # **PSM Industries PM Krupp T-42 HV | Premium Powder Metallurgy Ultra-High Cobalt & Vanadium High-Speed Steel Alloy** ## **Overview** PSM Industries' PM Krupp T-42 HV represents the ultimate evolution in high-speed steel technology, combining the **maximum cobalt content** of the T42 series with **significantly enhanced vanadium levels** (designated "HV" for High Vanadium) through advanced powder metallurgy processing. This alloy delivers an unprecedented combination of **exceptional high-temperature performance** and **extreme wear resistance**, specifically engineered for applications where both extreme red hardness and severe abrasive wear are simultaneously encountered. PM Krupp T-42 HV is the definitive solution for machining the most challenging superalloys, hardened materials, and abrasive composites where conventional tool steels fail rapidly due to thermal softening or excessive wear. ## **Key Features:** - **Dual Performance Enhancement:** Combines ultra-high cobalt (for red hardness) with high vanadium (for wear resistance) - **Maximum High-Temperature Performance:** Maintains cutting hardness beyond 600°C (1112°F) - **Extreme Abrasion Resistance:** Enhanced vanadium provides superior wear resistance in abrasive materials - **Ultra-Fine Homogeneous Microstructure:** PM processing delivers uniform carbide distribution (1-3 μm) - **Superior Thermal Conductivity:** Cobalt-enhanced matrix facilitates heat dissipation from cutting edge - **Excellent Thermal Fatigue Resistance:** Withstands severe thermal cycling in interrupted cutting - **Optimized Toughness Balance:** Maintains adequate fracture resistance despite very high alloy content - **Perfect Isotropy:** Identical mechanical properties in all orientations - **Enhanced Grindability:** PM process improves grindability compared to conventional equivalents --- ## **Material Specifications: PM Krupp T-42 HV** ### **1. Chemical Composition (wt%)** | Element | Content Range (wt%) | Function & Notes | |---------|---------------------|------------------| | **Carbon (C)** | 1.40 - 1.55% | Optimized for balanced MC and M₆C carbide formation | | **Tungsten (W)** | 9.00 - 10.00% | Primary carbide former, provides exceptional red hardness | | **Chromium (Cr)** | 3.50 - 4.00% | Provides hardenability and oxidation resistance | | **Vanadium (V)** | 2.50 - 3.00% | **Enhanced content** - forms ultra-hard MC carbides for extreme wear resistance | | **Cobalt (Co)** | 7.50 - 8.50% | **Ultra-high content** - maximizes hot hardness, temper resistance, and thermal conductivity | | **Molybdenum (Mo)** | 3.00 - 3.50% | Enhances hardenability and secondary hardening response | | **Silicon (Si)** | 0.15 - 0.30% | Deoxidizer, minimized for optimal toughness | | **Manganese (Mn)** | 0.15 - 0.30% | Improves hardenability, controlled for optimal properties | | **Sulfur (S)** | ≤ 0.003% | Minimized for optimal toughness properties | | **Phosphorus (P)** | ≤ 0.015% | Minimized for enhanced ductility | | **Iron (Fe)** | Balance | Matrix | **Key Distinctions from Standard T42:** - **Vanadium Enhancement:** 25-40% higher vanadium than standard T42 - **Carbon Adjustment:** Increased carbon to balance enhanced vanadium - **Optimized Co-V Ratio:** Specific cobalt-to-vanadium balance for dual performance **PM-Specific Advantages:** - **Homogeneous Alloy Distribution:** Eliminates segregation of high-density tungsten and cobalt - **Fine Carbide Control:** Uniform vanadium carbide distribution despite high content - **Enhanced Toughness:** 20-35% improvement in transverse rupture strength vs. conventional - **Superior Consistency:** Lot-to-lut uniformity for predictable performance ### **2. Physical & Mechanical Properties** #### **Physical Properties:** | Property | Typical Value | Test Standard | |----------|---------------|----------------| | **Density** | 8.28 g/cm³ | ASTM B311 | | **Melting Range** | 1410-1460°C | - | | **Thermal Conductivity** | 27.0 W/m·K @ 20°C | ASTM E1461 | | | 29.5 W/m·K @ 500°C | (Enhanced by cobalt) | | **Coefficient of Thermal Expansion** | 11.0 × 10⁻⁶/K (20-400°C) | ASTM E228 | | **Modulus of Elasticity** | 228 GPa | ASTM E111 | | **Specific Heat Capacity** | 432 J/kg·K @ 20°C | ASTM E1269 | #### **Mechanical Properties (Hardened & Triple Tempered):** | Tempering Condition | Hardness (HRC) | Transverse Rupture Strength (MPa) | Impact Toughness (Charpy, J) | Compressive Strength (MPa) | |----------------------|----------------|-----------------------------------|-----------------------------|----------------------------| | **3× 560°C** | 67-69 | 2,900-3,300 | 8-11 | 3,800-4,100 | | **3× 580°C** | 66-68 | 3,100-3,500 | 10-13 | 3,700-4,000 | | **3× 600°C** | 65-67 | 3,300-3,700 | 12-15 | 3,600-3,900 | | **3× 620°C** | 64-66 | 3,500-3,900 | 14-17 | 3,500-3,800 | #### **High-Temperature Properties (Primary Advantage):** | Temperature | Hot Hardness (HV) | Hot Yield Strength (MPa) | Retained Hardness (% of RT) | |-------------|-------------------|--------------------------|------------------------------| | **500°C** | 760-810 | 1,650-1,850 | 86-91% | | **550°C** | 710-760 | 1,350-1,550 | 81-86% | | **600°C** | 660-710 | 1,050-1,250 | 76-81% | | **650°C** | 570-620 | 750-950 | 67-72% | #### **Abrasion Resistance Data (Key Enhancement):** - **Pin-on-Disk Wear Rate:** 2.1-2.5 × 10⁻⁶ mm³/N·m - **Relative Abrasion Resistance vs. T42:** 1.25-1.35× improvement - **Edge Retention in Superalloys:** 30-40% improvement over standard T42 - **Wear Resistance at 500°C:** 1.40-1.60× M42 at same temperature #### **Performance Matrix Comparison:** | Property | PM T-42 HV | Standard PM T42 | PM T15 | Advantage vs. T42 | |----------|------------|-----------------|--------|-------------------| | **Cobalt Content** | 7.5-8.5% | 7.5-8.5% | 4.5-5.0% | Same | | **Vanadium Content** | 2.5-3.0% | 1.8-2.2% | 4.5-5.0% | +35-40% | | **Hot Hardness @ 600°C** | 100% (Ref) | 98-100% | 95-97% | Comparable | | **Wear Resistance** | 100% (Ref) | 75-80% | 85-90% | +25-30% | | **Toughness (TRS)** | 100% (Ref) | 105-110% | 90-95% | -5-10% | ### **3. Microstructural Characteristics** - **Carbide Volume Fraction:** 18-20% - **Primary Carbide Types:** - MC (Vanadium-rich): 35-45% (enhanced) - M₆C (Tungsten/Molybdenum-rich): 55-65% - **Average Carbide Size:** 1-3 μm - **Maximum Carbide Size:** ≤ 5 μm - **Carbide Morphology:** Fine, blocky MC carbides; rounded M₆C carbides - **Cobalt Distribution:** Homogeneous in solid solution (not in carbides) - **Grain Size:** ASTM 10-11 - **Inclusion Rating:** ASTM E45: A ≤ 0.5, B ≤ 0.5, C ≤ 0.5, D ≤ 0.5 - **Microcleanliness:** ≤ 0.15% area fraction non-metallic inclusions ### **4. Applicable & Reference Standards** - **ASTM A600:** Grade T42 (Modified High-Vanadium Variant) - **Proprietary Designation:** PSM Industries PM T-42 HV - **ISO 4957:** Reference to HS10-4-3-10 with vanadium enhancement - **Customer-Specific Specifications:** Developed for extreme aerospace and energy applications - **Aerospace Standards:** Often qualified under customer-specific material specifications --- ## **Heat Treatment Guidelines** ### **Annealing:** - **Temperature:** 840-860°C (1544-1580°F) - **Soak Time:** 3-4 hours at temperature - **Cooling Rate:** 10-15°C/hour to 600°C, then furnace cool - **Resulting Hardness:** 260-290 HB - **Purpose:** Produces soft, machinable condition with spheroidized carbides ### **Stress Relieving:** - **After Rough Machining:** 600-650°C (1110-1200°F), 2-3 hours - **After EDM:** 150-200°C (300-400°F) below final temper, 3-4 hours ### **Hardening:** 1. **Preheating Stages (Critical):** - **Stage 1:** 450-500°C (840-930°F) - equalization - **Stage 2:** 800-850°C (1470-1560°F) - intermediate - **Stage 3:** 1050-1100°C (1920-2010°F) - high preheat (essential) 2. **Austenitizing:** - **Temperature Range:** 1190-1220°C (2175-2230°F) - **Soak Time:** 2-4 minutes per 25mm thickness - **Atmosphere:** Vacuum essential; neutral salt with extreme caution 3. **Quenching:** - **Primary Method:** High-pressure gas quench (10-15 bar nitrogen/argon) - **Alternative:** Salt bath marquench at 550-600°C - **Note:** Oil quenching not recommended due to high cracking risk ### **Tempering:** - **Minimum Cycles:** Triple tempering essential, quadruple recommended - **Temperature Range:** 560-630°C (1040-1166°F) - **Time per Temper:** 90-150 minutes - **Cooling:** Air cool between tempers - **Cryogenic Treatment:** Highly beneficial between first and second tempers (-80°C to -120°C, 3-6 hours) ### **Surface Treatments:** - **Plasma Nitriding:** 480-520°C, 6-18 hours - Case depth: 0.03-0.08mm - Surface hardness: 1200-1400 HV - **PVD Coatings:** AlTiN, AlCrN, or multilayer coatings - Excellent adhesion due to fine microstructure - Pre-treatment plasma etching essential --- ## **Machining & Grinding** ### **Machining (Annealed Condition):** - **Hardness:** 260-290 HB (difficult to machine) - **Tooling:** Premium carbide grades (K01-K10) or PCD - **Turning Parameters:** - Speed: 25-45 m/min - Feed: 0.06-0.12 mm/rev - Depth of Cut: 0.8-1.5 mm - **Milling Parameters:** - Speed: 35-55 m/min - Feed per Tooth: 0.03-0.07 mm ### **Grinding (Hardened Condition):** - **Wheel Selection:** - **Primary:** Diamond wheels (100-200 grit, metal/vitrified bond) - **Secondary:** CBN wheels (120-180 grit, high concentration) - **Parameters:** - Wheel Speed: 20-25 m/s (diamond), 25-28 m/s (CBN) - Work Speed: 8-15 m/min - Downfeed: 0.002-0.010 mm/pass - **Coolant:** High-pressure (≥30 bar), fine filtration essential --- ## **Product Applications** ### **Extreme Performance Cutting Tools:** - **Aerospace Superalloys:** Inconel 718, 625, 713; Waspaloy; Rene alloys - **Titanium Alloys:** Ti-6Al-4V, beta titanium alloys, TIMETAL - **Cobalt Alloys:** Stellite, Haynes alloys, MP35N - **Hardened Steels:** 55-65 HRC tool and die steels ### **Specific Tool Types:** - **End Mills:** For high-performance milling of aerospace components - **Drills:** Deep hole drilling in heat-resistant alloys - **Turning Tools:** For heavy roughing of superalloy forgings - **Thread Mills:** For precision threading in difficult materials - **Broaches:** For turbine disc and blade root forms ### **Special Applications:** - **Die Casting:** Cores and inserts for aluminum and magnesium - **Hot Work Tooling:** Forging dies for high-temperature alloys - **Wear Parts:** Operating in high-temperature abrasive environments - **Medical Implant Machining:** Cobalt-chrome and titanium alloys --- ## **Comparative Performance Data** ### **Cutting Performance in Superalloys:** | Work Material | Relative Tool Life (vs. PM T42) | Optimal Cutting Speed | |---------------|---------------------------------|------------------------| | **Inconel 718** | 120-140% | 15-25 m/min | | **Waspaloy** | 115-130% | 12-20 m/min | | **Ti-6Al-4V** | 110-125% | 25-40 m/min | | **Hardened Steel (60 HRC)** | 130-150% | 35-55 m/min | ### **Economic Justification:** - **Tool Life Improvement:** 20-50% over standard T42 in abrasive conditions - **Reduced Downtime:** Fewer tool changes in long-cycle operations - **Higher Productivity:** Maintains aggressive parameters longer - **Quality Consistency:** More predictable tool life and wear patterns ### **Application-Specific Benefits:** 1. **Aerospace Turbine Components:** Extended tool life in nickel superalloys 2. **Medical Implants:** Improved surface finish in cobalt-chrome alloys 3. **Die & Mold:** Better performance in hardened tool steels 4. **Energy Sector:** Reliable performance in high-temperature applications --- ## **Quality Assurance** ### **Testing Protocol:** 1. **Full Chemical Analysis:** ICP-OES with carbon/sulfur combustion 2. **Microstructural Evaluation:** Carbide size/distribution, inclusion rating 3. **Mechanical Testing:** Hardness, transverse rupture, impact toughness 4. **High-Temperature Testing:** Hot hardness, elevated temperature tensile 5. **NDT:** Ultrasonic, dye penetrant inspection ### **Certification:** - **Material Certificate 3.2** per EN 10204 - **Heat Treatment Certificate** with full traceability - **Microstructural Report** with carbide analysis - **Performance Testing Data** for critical applications --- ## **Technical Support** PSM Industries provides: - **Application Engineering:** Material selection and optimization - **Heat Treatment Development:** Custom cycles for specific applications - **Failure Analysis:** Root cause determination and solutions - **Performance Optimization:** Cutting parameter recommendations --- **Disclaimer:** PM Krupp T-42 HV is a premium material requiring specialized processing and application knowledge. Consultation with PSM technical personnel is essential for successful implementation. This material represents the highest performance tier in cobalt-bearing high-speed steels. Specifications subject to change without notice. Performance data based on laboratory testing; actual results may vary in specific applications. -:- For detailed product information, please contact sales. -: PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Alloy Specification Dimensions Size： Diameter 20-1000 mm Length <7114 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. -: PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Alloy Properties -:- For detailed product information, please contact sales. -:

Applications of PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Rod Alloy -:- For detailed product information, please contact sales. -: Chemical Identifiers PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Rod Alloy -:- For detailed product information, please contact sales. -:

Packing of PSM Industries PM Krupp T-42 HV Powder Metallurgy Steel Rod Alloy -:- 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 Rod 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 3585 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