Latrobe,Viscount 44® Prehardened Tool Steel Flange (ASTM H13S)

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: Latrobe Viscount 44® Prehardened Tool Steel Flange (ASTM H13S) Product Information -:- For detailed product information, please contact sales. -: Latrobe Viscount 44® Prehardened Tool Steel Flange (ASTM H13S) Synonyms -:- For detailed product information, please contact sales. -:

Latrobe Viscount 44® Prehardened Tool Steel (ASTM H13S) Product Information -:- For detailed product information, please contact sales. -: # **Latrobe Viscount 44® Pre-Hardened Free-Machining Hot Work Tool Steel** ## **Premium Pre-Hardened H13S for Reduced Lead Time and Enhanced Productivity** Latrobe Viscount 44® represents a unique pre-hardened variant of the sulfur-enhanced H13 hot work tool steel, engineered to deliver exceptional machinability in a heat-treated condition while maintaining good hot work properties. Supplied at approximately 44 HRC, this specialized grade eliminates the need for heat treatment after machining, significantly reducing lead time and manufacturing costs for tooling applications. The "Viscount 44" designation reflects both its premium quality and delivered hardness level (44 HRC), offering a balanced solution for applications requiring moderate hot work performance with maximum manufacturing efficiency. --- ### **Key Features & Benefits** - **Pre-Hardened Delivery**: Supplied at ~44 HRC, eliminating post-machining heat treatment requirements - **Exceptional Machinability in Hardened State**: Maintains good cutting performance despite hardness, due to sulfur enhancement - **Reduced Manufacturing Lead Time**: No heat treatment cycle needed after machining - **Minimal Distortion Concerns**: No dimensional changes from final heat treatment - **Good Hot Work Properties**: Retains core H13 characteristics suitable for many thermal applications - **Cost-Effective Production**: Eliminates heat treatment costs and associated logistics --- ### **Chemical Composition (Typical %, Pre-Hardened H13S Variant)** | Element | Carbon (C) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) | Silicon (Si) | Manganese (Mn) | Sulfur (S) | |---------|------------|---------------|-----------------|--------------|--------------|----------------|------------| | **Content** | 0.35 - 0.45 | 4.75 - 5.50 | 1.10 - 1.75 | 0.80 - 1.20 | 0.80 - 1.20 | 0.20 - 0.60 | 0.08 - 0.15 | *Note: Viscount 44® maintains the sulfur-enhanced H13S composition, with controlled sulfide inclusions that dramatically improve machinability even in the pre-hardened condition. The chemistry is optimized to provide stable hardness at 44 HRC with good dimensional stability during and after machining.* --- ### **Physical & Mechanical Properties (As-Delivered)** | Property | Value / Description | |----------|---------------------| | **Density** | 7.79 g/cm³ | | **Thermal Conductivity** | 24-28 W/m·K at 20°C | | **Specific Heat Capacity** | 0.46 kJ/kg·K at 20°C | | **Coefficient of Thermal Expansion** | 11.0 × 10⁻⁶/K (20-400°C) | | **As-Delivered Hardness** | **42-45 HRC** (guaranteed range) | | **Uniformity of Hardness** | ±1.5 HRC throughout cross-section | | **Tensile Strength** | 1,450-1,600 MPa (at 44 HRC) | | **Yield Strength** | 1,300-1,450 MPa (at 44 HRC) | | **Modulus of Elasticity** | 200-210 GPa | | **Impact Toughness** | Moderate - suitable for intended applications | - **Machinability in Hardened State** | **Exceptional for 44 HRC material** | --- ### **Heat Treatment Considerations** #### **Important Note:** Viscount 44® is supplied in a fully heat-treated condition and is **NOT intended for additional heat treatment**. Any attempt to re-harden or significantly alter the tempering condition may adversely affect properties and dimensional stability. #### **Stress Relieving (If Required)** - **Temperature**: 480-520°C (900-970°F) MAXIMUM - **Hold Time**: 1-2 hours per inch of thickness - **Purpose**: Only for stress relief after heavy machining - **Warning**: Higher temperatures will reduce hardness and may affect dimensional stability #### **Nitriding or Surface Treatments** - **Compatibility**: Suitable for low-temperature nitriding (<500°C/930°F) - **Pre-treatment**: Standard cleaning procedures apply - **Result**: Can achieve surface hardness of 60-65 HRC with proper treatment --- ### **International Standards & Specifications** | Standard | Grade Designation | Notes | |----------|-------------------|-------| | **ASTM** | Modified H13S (Pre-Hardened) | Proprietary pre-hardened variant | | **Proprietary** | Viscount 44® | Latrobe Special Steel trademark | | **Similar Products** | Pre-hardened H13 variants | Various commercial offerings | | **Delivery Condition** | Pre-hardened to 44 HRC | Primary distinguishing feature | | **Quality Standard** | Latrobe Premium Pre-Hardened | Internal quality specification | --- ### **Typical Applications** #### **Rapid Prototyping and Development** - **Prototype Die Casting Inserts**: For product validation and process development - **Development Tooling**: Where rapid iteration is required - **Pilot Production Tools**: For low-volume production runs #### **Maintenance and Repair Components** - **Replacement Inserts**: For maintenance of production tooling - **Spare Parts Inventory**: Pre-machined or ready for final machining - **Emergency Repair Components**: Minimizing production downtime #### **Specialized Tooling Components** - **Ejector Pins and Guide Pins**: For plastic injection and die casting molds - **Support Pillars and Leader Pins**: Structural components requiring moderate hardness - **Hot Runner Components**: Manifolds, nozzles, and tips for moderate temperatures #### **Educational and Training Applications** - **Toolmaking Training**: Allows students to machine hardened materials - **Technical Demonstrations**: For machining workshops and seminars - **Research and Development**: Experimental tooling and fixtures #### **Low to Medium Volume Production** - **Short-Run Production Tools**: Where tooling cost must be minimized - **Custom Component Manufacturing**: For specialized equipment - **Aftermarket Parts**: Replacement components for existing machinery --- ### **Machining & Fabrication Notes** #### **Machining in Pre-Hardened Condition** - **Recommended Tools**: **Premium carbide tooling required** - grades for machining hardened steels - **Cutting Speeds**: 80-120 m/min (260-400 SFM) for turning operations with coated carbide - **Feed Rates**: Light to moderate feeds (0.10-0.25 mm/rev typical) - **Depth of Cut**: Light to moderate (0.5-2.0 mm typical) - **Coolant**: **Essential** - high-performance synthetic or semi-synthetic coolant - **Special Advantage**: 40-60% faster machining than conventional H13 at same hardness #### **Grinding Operations** - **Suitable for grinding** with standard aluminum oxide wheels - **Coolant**: Flood coolant recommended - **Parameters**: Standard grinding practices for 44 HRC material - **Surface Finish**: Good surface finishes achievable #### **EDM Machining** - **Excellent suitability** for wire EDM and sinker EDM - **Standard parameters** for hardened tool steel apply - **Surface finish**: Good results achievable with proper settings #### **Drilling and Tapping** - **Drilling**: Solid carbide drills or indexable carbide inserts recommended - **Tapping**: Thread forming taps preferred over cutting taps - **Hole Making**: Consider EDM for small or deep holes --- ### **Quality Assurance & Metallurgical Standards** #### **Hardness and Uniformity Standards** - **Hardness Range**: 42-45 HRC guaranteed - **Uniformity**: ±1.5 HRC maximum variation within piece - **Surface Condition**: Minimal decarburization (≤0.10 mm) - **Straightness**: Enhanced straightness tolerances for machining #### **Testing & Certification** - **Hardness Certification**: Multiple point hardness verification - **Chemical Analysis**: Full composition verification - **Ultrasonic Testing**: Available for critical applications - **Certification**: Material test report with guaranteed hardness --- ### **Available Product Forms** | Form | Standard Sizes | Condition | Hardness | Special Features | |------|---------------|-----------|----------|------------------| | **Round Bars** | 10-200mm diameter | Pre-Hardened | 42-45 HRC | Centerless ground | | **Flat Bars** | 10-150mm thickness | Pre-Hardened | 42-45 HRC | Ground surfaces | | **Squares** | 10-150mm | Pre-Hardened | 42-45 HRC | Ground all over | | **Blocks** | Custom dimensions | Pre-Hardened | 42-45 HRC | Rough or finish machined | --- ### **Technical Comparison** | Property | Viscount 44® | Annealed H13 | Heat-Treated H13 | Notes | |----------|--------------|--------------|------------------|-------| | **As-Supplied Hardness** | **44 HRC** | 20 HRC | 44-48 HRC | Primary advantage | | **Machinability** | Good (for 44 HRC) | Excellent | Poor | Context-dependent | | **Lead Time** | **Minimal** | Moderate | Long | Major benefit | | **Distortion Risk** | **None** | Low | High | From heat treatment | | **Hot Work Capability** | Good | N/A | Excellent | For moderate applications | | **Total Cost** | **Lower** | Moderate | Higher | For complete process | --- ### **Design Considerations** 1. **Optimal Applications**: - Components not requiring extreme thermal fatigue resistance - Tools for moderate temperature service (<400°C/750°F) - Applications where machining efficiency outweighs ultimate performance - Situations where heat treatment facilities are unavailable or costly 2. **Limitations to Consider**: - Not for severe thermal cycling applications - Maximum service temperature approximately 400°C (750°F) - Impact resistance lower than fully optimized H13 - Not suitable for re-heat treatment --- ### **Economic Advantages** 1. **Eliminated Costs**: - Heat treatment processing costs - Heat treatment logistics and handling - Post-heat treatment machining (finishing operations) - Risk and cost of heat treatment distortion 2. **Time Savings**: - No heat treatment cycle time (typically 24-72 hours) - Reduced total manufacturing lead time - Faster time-to-market for tooling 3. **Predictable Costs**: - Fixed material cost includes heat treatment - Reduced risk of heat treatment failures - Consistent machining performance --- ### **Technical Support** Latrobe provides specialized support for Viscount 44® applications: - **Machining Recommendations**: Optimal parameters for pre-hardened material - **Application Guidance**: Appropriate uses and limitations - **Troubleshooting**: Assistance with machining challenges - **Technical Data**: Comprehensive machining guidelines --- **Select Latrobe Viscount 44® Pre-Hardened Tool Steel** when rapid turnaround, predictable costs, and manufacturing efficiency are paramount concerns. This innovative material provides a unique combination of pre-hardened delivery and enhanced machinability, offering a compelling solution for prototype tooling, maintenance components, educational applications, and situations where heat treatment capabilities are limited or costly. Viscount 44® represents an optimal balance between functional performance and manufacturing practicality, delivering finished tools faster and more economically than conventional approaches. When time-to-market or total manufacturing cost drives project success, Viscount 44® provides a proven, efficient solution that bridges the gap between annealed and fully heat-treated tool steels. -:- For detailed product information, please contact sales. -: Latrobe Viscount 44® Prehardened Tool Steel (ASTM H13S) Specification Dimensions Size： Diameter 20-1000 mm Length <7171 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 Viscount 44® Prehardened Tool Steel (ASTM H13S) Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe Viscount 44® Prehardened Tool Steel Flange (ASTM H13S) -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Viscount 44® Prehardened Tool Steel Flange (ASTM H13S) -:- For detailed product information, please contact sales. -:

Packing of Latrobe Viscount 44® Prehardened Tool Steel Flange (ASTM H13S) -:- 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 Flange 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 3642 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