
You need cutting tools that can handle very high heat. These tools must stay sharp for a long time. Cuchillas de cizalla para trabajo en caliente made from H13 steel are tough and dependable. They work well for hard jobs. H13 steel is special because it does not get tired from heat. It does not wear out fast. It can be shaped into many forms. Here is how these benefits compare:
| Ventaja | Descripción |
|---|---|
| Resistance to thermal fatigue | Handles heating and cooling many times. It does not crack or get soft. |
| Buena resistencia al desgaste | Stays sharp and strong for a long time. |
| Ability to be machined | Can be shaped exactly for many uses. |
Metal Industrial works hard to give you high-quality blades. These blades last a long time.
Puntos clave
- H13 steel blades do not get tired from heat. This makes them great for cutting in hot places. These blades stay sharp and strong for a long time. You do not need to replace them often. H13 steel has a special mix of metals. This makes the blades tough and hard to wear out. The blades work well and last long. You can get cuchilla personalizada designs for special cutting jobs. This helps you work better and get good results. The blades are made stronger with the right heat treatment. This helps them last longer in hard jobs. If you check and care for the blades often, you can stop cracks and damage. This makes the blades last longer. H13 hot work shear blades are used in many industries. They are used in cars, planes, and recycling. Picking the right blade for your job helps you work better. It also helps you stop wasting time.
Hot Work Shear Blades Overview

H13 Steel Properties
Alloy Composition
You need to know what makes H13 steel special for hot work shear blades. H13 steel contains chromium, molybdenum, and vanadium. These elements help the steel resist heat and wear. Chromium gives the steel strength and helps it stay hard at high temperatures. Molybdenum improves toughness and helps the blade resist cracking. Vanadium increases wear resistance and keeps the edge sharp. This mix of elements makes H13 steel a top choice for cutting tools that face extreme heat.
Microstructure
The microstructure of H13 steel plays a big role in how hot work shear blades perform. When you look at the steel under a microscope, you see a mix of martensite and carbides. Martensite gives the blade hardness and strength. Carbides help the blade resist wear and keep its edge longer. The way the steel is cooled and treated changes the size and shape of these parts. Good heat treatment creates a fine, even structure. This helps the blade stay strong and last longer, even when you use it in tough jobs.
You can also look at some key mechanical and thermal properties that set H13 apart:
- Tensile strength ranges from 1200 to 1590 MPa, depending on how you heat treat the steel.
- Yield tensile strength ranges from 1000 to 1380 MPa.
- Modulus of elasticity is about 215 GPa.
- Poisson’s ratio ranges from 0.27 to 0.30.
These numbers show that H13 steel can handle heavy loads and high temperatures without losing its shape or sharpness.
Blade Design & Manufacturing
Geometría del borde
The edge geometry of hot work shear blades affects how well you can cut metal. Metal Industrial uses advanced machines to shape the blade edges. The angle and shape of the edge focus the cutting force. This means you get clean, fast cuts with less effort. You can choose from different edge designs, such as straight, curved, or toothed. Each design works best for certain materials and cutting jobs. If you need a special shape or size, you can request custom blades.
Tratamiento térmico
Heat treatment is a key step in making hot work shear blades strong and reliable. You heat the steel to a high temperature, then cool it in a controlled way. This process changes the microstructure and locks in the right balance of hardness and toughness. Metal Industrial uses advanced heat treatment and forging methods. These steps help the blades resist cracking and wear, even after many uses. The company also offers different hardness levels to match your needs.
You can see the range of customization options available for hot work shear blades in the table below:
| Aspecto de personalización | Detalles |
|---|---|
| Diameter Range | 20mm to 500mm round bars |
| Thickness Options | 10-500mm flats and plates |
| Custom Geometries | Special edge configurations and tooth patterns |
| Hardness Levels | Custom hardness from 44-52 HRC |
| Tratamientos de superficies | TiN, TiCN, and DLC coatings available |
When you choose hot work shear blades from Nanjing Metal Industrial, you get products made with strict quality control. The company checks every blade for sharpness, strength, and durability before shipping. You can also ask for special coatings to reduce friction and extend blade life.
Tip: Always match the blade’s hardness and edge design to your cutting job. This helps you get the best results and keeps your blades working longer.
Hot work shear blades play a key role in many industries. You find them in automotive, aerospace, recycling, and construction. You can use them to cut metal sheets, plates, and even plastics. With the right design and treatment, these blades give you clean cuts and long service life.
Thermal Resistance & Performance

High-Temperature Cutting
Hardness Retention
You need blades that stay hard when the heat rises. H13 hot work shear blades keep their hardness even when you use them in very hot environments. This is important because soft blades cannot cut metal cleanly. H13 steel works best in a tempering range between 530°C and 650°C. In this range, the blades show their best performance and last longer.
| Tempering Range (°C) | Descripción |
|---|---|
| 530-650 | Usual tempering range for H13 steel, indicating optimal performance conditions. |
You can trust H13 hot work shear blades to keep their edge during tough jobs. The steel does not lose its shape or sharpness, even after many cycles of heating and cooling. This means you get more cuts before you need to replace the blade.
Resistencia al desgaste
You want blades that do not wear out quickly. H13 hot work shear blades offer excellent wear resistance. This property helps the blade keep cutting without getting dull. The special mix of elements in H13 steel, like chromium and vanadium, gives the blade strong wear resistance. You can use these blades for long periods, even when cutting hard or abrasive materials.
Wear resistance matters most when you cut hot billets or thick metal sheets. The blade faces friction and heat, but it does not break down easily. You will notice that the blade edge stays sharp, which means you spend less time changing blades and more time working. H13 steel stands out because it resists both heat and wear. Other hot work steels may lose their edge faster, but H13 keeps working.
H13 steel is known for its ability to handle high temperatures without deforming. This makes it a top choice for jobs like die-casting and forging. You can see how H13 compares to another hot work steel in the table below:
| Tipo de acero | ΔT₀ (°C) |
|---|---|
| H13 | 476 |
| H21 | 436 |
A higher ΔT₀ value means better thermal resistance. H13 hot work shear blades give you a longer service life because of their strong wear resistance and ability to stay hard under heat.
Note: Always check your blades for signs of wear. Replacing blades at the right time keeps your cuts clean and your equipment safe.
H13 ESR Variant
Purity & Toughness
You may want even better performance from your hot work shear blades. The H13 ESR (Electro-Slag Remelted) variant gives you higher purity and toughness. The ESR process removes unwanted elements from the steel. This makes the blade stronger and less likely to crack. You get a blade that can handle heavy loads and tough jobs without breaking.
The high purity of H13 ESR steel also improves wear resistance. You can use these blades in demanding environments, and they will keep their edge longer. The toughness of the ESR variant means the blade can take more impact without chipping or failing.
Isotropic Properties
You need blades that perform the same way in every direction. H13 ESR steel has isotropic properties. This means the blade has equal strength and wear resistance no matter how you use it. The even structure of the steel helps the blade resist cracking and deformation.
Isotropic properties are important when you use the blade for different types of cuts. You can rely on the blade to give you consistent results, whether you cut straight lines or curves. The combination of purity, toughness, and isotropic properties makes H13 ESR hot work shear blades a smart choice for high-temperature cutting and billet shearing.
Tip: Choose H13 ESR blades when you need the highest level of wear resistance and reliability for your toughest jobs.
Billet Shearing Applications

Descripción general del proceso
Billet shearing is important in metalworking. Shearing blades cut metal billets into exact lengths. This helps get materials ready for more shaping or rolling. Many industries use shearing, like automotive, recycling, and manufacturing. Shearing blades cut plates, bars, and wire rods. They are also used in cold rolling and metal processing.
Shearing blades work on different lines. You see them in hot rolling, slabbing lines, and crop end jobs. In hot rolling, H13 hot work shear blades cut billets, iron wires, and rebars. In slabbing lines, parallel blades cut slabs, blooms, and bars. Crop end shearing removes the head and tail of slabs or billets. This happens between the caster delivery and the first rolling mill.
| Tipo de aplicación | Descripción |
|---|---|
| Hot Rolling | H13K Billet shear knives cut billets, iron wires, and rebars in cut to length lines. |
| Slabbing Lines | Parallel blades are used in slabbing, blooming, and billet and bar mills for cutting. |
| Crop Ends | Billet and Bloom blades crop the head and tail ends of slabs, blooms, or billets, usually between the caster delivery and the first rolling mill. |
Shearing is also used in the automotive industry for frame panels and parts. Recycling plants use shearing blades to cut scrap metals. Manufacturing uses shearing for aluminum, copper, and stainless steel sheets.
Hot vs. Cold Shearing
It is important to know about hot and cold shearing. Hot shearing cuts billets when they are very hot. H13 hot work shear blades are good for this because they resist heat and stay sharp. Hot shearing cuts metal that is soft from heat. This gives smoother cuts and less blade wear.
Cold shearing happens at room temperature. The blades cut metal that is hard and not heated. Cold shearing needs more force. The blades wear out faster. Cold shearing is used for steel sheets and bars that do not need heating.
Hot shearing is best for fast cuts and less blade wear. Cold shearing is best for exact cuts in finished materials. Both use shearing blades, but you must pick the right one for your job.
Advantages of H13 Blades
Corte de precisión
You want your cuts to be clean and exact. H13 hot work shear blades help you get this. The special alloy and heat treatment keep the blades sharp. You get straight cuts with little burr or bending. These blades cut billets, bars, and plates in many industries.
You can ask for custom blade shapes and sizes. If you need a special edge or tooth pattern, check the página de cuchillas personalizadas for choices. Custom blades help you get the best results for your job.
| Propiedad | H13 Hot Work Shear Blades | Other Blade Materials |
|---|---|---|
| Thermal Fatigue Resistance | Alto | Variable |
| Hot Hardness | Excelente | Moderate to Low |
| Tenacidad | Bien | Variable |
| Resistance to Scaling and Oxidation | Alto | Variable |
H13 hot work shear blades have high thermal fatigue resistance and great hot hardness. They are tough and resist scaling and oxidation. These features help you get exact cuts and long blade life.
Efficiency & Safety
You need shearing to be fast and safe. H13 hot work shear blades help you work quickly and safely. The blades stay sharp, so you do not change them often. This means less downtime and smooth production.
H13 blades also make work safer. Their toughness lowers the chance of blade failure. The blades resist thermal fatigue, so they do not crack or break from heat. You spend less on maintenance and keep production running well.
| Característica | Contribution to Safety and Efficiency |
|---|---|
| Alta dureza | Lowers the risk of blade failure during use. |
| Resistance to Thermal Fatigue | Keeps blades working well at high temperatures. |
| Maintains Sharpness | Means fewer blade changes and less downtime. |
| Integrity During Use | Cuts maintenance costs and boosts production efficiency. |
These benefits help in automotive, recycling, and metal processing. H13 hot work shear blades shape frame panels, cut scrap metals, and process aluminum, copper, and stainless steel sheets.
If you want blades you can trust, try Nanjing Metal Industrial. They use advanced methods and strict checks to make good blades. You get blades that help you work fast and safe in billet shearing.
Tip: Always use the right shearing blade for your job. This gives you better results and longer blade life.
Failure Modes & Prevention

Problemas comunes
When you use H13 hot work shear blades, you may see some common problems. These issues can affect how well your blades work during shearing. You should know what to look for so you can prevent damage and keep your blades in good shape.
| Modo de falla | Descripción |
|---|---|
| Agrietamiento | Long cracks from the surface to the center of the part. |
| Delamination | Separation of layers within the material. |
| Distorsión | Warping or bending of the tool during use. |
Heat Checking – Causes
Heat checking happens when the blade faces repeated heating and cooling. You see this problem most during hot shearing. The surface of the blade expands and contracts many times. This stress causes small cracks to form. If you use the blade at very high temperatures or cool it too quickly, you increase the risk of heat checking.
Heat Checking – Manifestation
You can spot heat checking by looking for fine cracks on the blade’s surface. These cracks often look like a network or web. They start small but can grow deeper if you keep using the blade. If you ignore these cracks, they can lead to bigger problems like blade failure.
Heat Checking – Detection Methods
You should check your blades often. Use a magnifying glass or a microscope to look for tiny cracks. Good lighting helps you see the surface better. You can also run your finger gently over the blade to feel for rough spots. Early detection helps you fix problems before they get worse.
Heat Checking – Preventive Measures
You can prevent heat checking by controlling the temperature during use. Do not let the blade get too hot or cool down too fast. Use proper heat treatment and preheating methods. Always follow the right cooling steps after you finish shearing. Regular checks and timely repairs help keep your blades safe.
Deformación
Deformation means the blade bends or warps during use. This can happen if the blade faces too much force or heat. You may see the blade does not cut straight anymore. To avoid deformation, use the right blade for your job and do not overload it. Make sure your equipment is set up correctly.
Maintenance Strategies
You can make your H13 hot work shear blades last longer with good maintenance. Experts and industry forums share helpful routines and best practices.
Preventive Routines
- Use proper heat treatment for your blades. Preheat the steel and use careful quenching.
- Inspect your blades often. Look for signs of thermal fatigue and wear.
- Repair or re-temper your blades as soon as you find a problem.
These steps help you catch issues early and keep your blades ready for shearing.
Forum Best Practices
Many professionals share their tips for keeping blades in top shape. Here are some best practices from industry forums:
| Mejores prácticas | Detalles |
|---|---|
| Preheating | Preheat to 800/1000°F (430/540°C) minimum. Keep above 700°F (370°C) during welding. |
| Enfriamiento | Cool to 150°F (65°C) after welding. |
| Templado | Temper 25°F (15°C) below the original tempering temperature (1000°F (540°C) minimum). |
| Filler Material | Use H-11 filler for welding. |
| Welding Technique | Avoid too much puddling during welding to stop cracking. |
Tip: Always follow these steps to reduce the risk of cracks and keep your blades strong.
You can prevent most failures by using the right maintenance routines. Regular care helps your blades handle the stress of shearing and keeps your work safe and efficient.
Comparing Hot Work Steels

When you choose a shear blade for high-temperature metal cutting, you often see two main options: H13 and H11 hot work steels. Both have strong points, but they fit different jobs. You need to know how they compare so you can pick the right blade for your work.
H13 vs. H11
Composición química
The mix of elements in steel changes how it works. H13 and H11 look similar, but small differences make a big impact on blade performance.
| Element | H13 (typical wt%) | H11 (typical wt%) |
|---|---|---|
| C (Carbon) | 0.32 – 0.45 | 0.32 – 0.45 |
| Mn (Manganese) | 0.20 – 0.50 | 0.20 – 0.50 |
| Si (Silicon) | 0.80 – 1.20 | 0.80 – 1.20 |
| Cr (Chromium) | 4.75 – 5.50 | 4.75 – 5.50 |
| Mo (Molybdenum) | 1.10 – 1.75 | 0.80 – 1.20 |
| V (Vanadium) | 0.80 – 1.20 | 0.60 – 1.20 |
H13 steel has more molybdenum and vanadium than H11. This gives H13 better heat resistance and wear resistance. You can use H13 hot work shear blades for jobs where the blade gets very hot and faces a lot of friction. H11 has less molybdenum, so it is tougher and handles impact well, but it does not resist heat as much as H13.
Heat Treatment Performance
How you treat the steel changes its strength and toughness. H13 and H11 react differently to heat treatment.
| Propiedad | H11 Steel | H13 Steel |
|---|---|---|
| Thermal Fatigue Resistance | Better due to less vanadium, can bend without breaking | Less effective, more prone to cracking under thermal stress |
| Abrasion and Wear Resistance | Moderate, suitable for less abrasive applications | Superior, handles friction and abrasive materials better |
| Tenacidad | Superior toughness, handles repeated heating and cooling cycles | Less tough, more rigid due to higher vanadium content |
You get higher wear resistance and hot hardness with H13. This means your H13 hot work shear blades stay sharp longer, even after many cycles of heating and cooling. H11 gives you more toughness, so it bends instead of breaking when hit hard.
Aplicaciones Típicas
You see H13 and H11 in different places because of their special strengths.
| H11 Applications | H13 Applications |
|---|---|
| Hot forging dies where heavy mechanical shock and fracture toughness are primary concerns (large drop-forging dies, upset dies) | Die-casting dies, extrusion tooling, hot stamping dies where sustained hot hardness and thermal-fatigue resistance are critical |
| Certain punch and shear applications requiring good toughness | Hot-work punches and cores, manifold inserts, die-casting cores subject to cyclic thermal loading |
| Inserts where ductility and shock resistance reduce risk of catastrophic fracture | Tools and molds operating at high continuous temperatures and repetitive thermal cycling |
You use H13 hot work shear blades for cutting hot billets, die-casting, and forging. H11 works best for tools that need to handle shock and bending, like large forging dies and punches.
Thermal Shock Resistance
Thermal shock happens when a blade heats up and cools down quickly. You want a blade that can handle these changes without cracking.
| Tipo de acero | Tenacidad | Fortaleza | Thermal Shock Resistance |
|---|---|---|---|
| H11 | Más alto | Más bajo | Bien |
| H13 | Más bajo | Más alto | Excelente |
- H11 steel has higher toughness, so it resists cracking from sudden temperature changes.
- H13 steel has higher strength and hardness, which gives it excellent thermal shock resistance.
You can trust H13 hot work shear blades to keep working even when you cut red-hot metal and then cool the blade fast.
Toughness & Cost
You need to balance toughness and cost when you pick a blade.
- H13 hot work shear blades give you better wear and heat resistance. They cost more because of the extra alloying elements and processing.
- H11 blades are tougher and less expensive. You use them when you need to handle high impact and do not need as much heat resistance.
Tip: Choose H13 for high-temperature, high-wear jobs. Pick H11 when you need more toughness and lower cost.
Hot vs. Cold Work Steels
Application Limits
Hot work steels and cold work steels do different jobs. You need to know where each one fits best.
- Hot work steels, like H13 and H11, work well in high temperatures. You use them for hot shearing, forging, and die casting. They resist softening and cracking from heat.
- Cold work steels, like D2, are best for room temperature or slightly warm jobs. They give you great wear resistance and keep their shape during long runs.
Value Analysis
You want the best value for your work. Hot work steels and cold work steels each offer special benefits.
| Tipo de acero | Mejor para | Key Value Points |
|---|---|---|
| Hot Work Steels | High-temperature jobs (hot shearing, forging, die casting) | Long service life, less downtime, fewer replacements |
| Cold Work Steels | High-volume, low-temperature jobs (blanking, trimming) | Cost-effective, excellent edge retention, high wear resistance |
For example, in a steel mill, you use H13 hot work shear blades to cut red-hot billets. These blades keep their edge and resist thermal fatigue. In the same mill, you use D2 cold work blades for blanking cold steel sheets. Here, you want sharpness and wear resistance more than heat resistance.
Note: Always match the steel type to your job. This helps you get the best performance and value from your blades.
Heat Treatment & Selection

Tempering Techniques
Double/Triple Tempering
You want your H13 hot work shear blades to last longer and work better. Double and triple tempering help you reach this goal. When you use double tempering, you make the blade tougher and improve its performance in shearing processes. A third temper gives extra stress relief, especially after you finish machining the blade. This step helps the blade stay strong and resist cracking during tough jobs.
Here is a table that shows the benefits of each tempering process:
| Tempering Process | Beneficios |
|---|---|
| Double Tempering | Maximizes toughness and tool performance |
| Triple Tempering | Provides additional stress relief after machining |
Each tempering step helps the blade in a different way. Double tempering makes the blade tougher. Triple tempering gives even more strength after the blade is shaped. These steps help the blade last longer and work better.
- Double tempering makes blades tougher.
- Triple tempering helps blades handle stress after shaping.
Always pick the right tempering for your blades. This helps your blades work well and last longer.
Microstructure Stabilization
You need a stable microstructure for your blades to work well. Tempering H13 hot work shear blades changes the steel’s structure. This makes the blade less likely to crack or bend during use. Good heat treatment creates a fine, even structure. This helps the blade stay sharp and resist wearing out.
If you skip tempering, the blade can get brittle. Brittle blades break easily and do not last long. You want a blade that stays strong, even after many uses. Microstructure stabilization helps your blades work well in all shearing jobs.
Tip: Always follow the right heat treatment steps. This keeps your blades strong and reliable.
Blade Selection Guide
Size & Geometry
You need to pick the right size and shape for your H13 hot work shear blades. The size and shape affect how well the blade cuts and how long it lasts. If you use a blade that is too small or the wrong shape, it may not work well or wear out fast.
Think about what you need to cut. Thick billets need a thick, wide blade. Thin sheets need a slimmer blade. The edge shape matters too. Straight edges cut clean. Toothed edges help with tough or uneven materials.
Here are some things to remember:
- Match blade thickness to what you cut.
- Pick the right edge shape for your job.
- Ask for custom sizes if your machine needs them.
Choosing the right size and shape helps your blades work better and last longer.
Compatibilidad de equipos
You must make sure your blades fit your machines. Equipment compatibility is important for safe and easy work. H13 hot work shear blades can be made in custom shapes and sizes. This means you can get blades that fit your machines exactly.
Here is a table that explains why compatibility matters:
| Evidencia | Explicación |
|---|---|
| Custom Configurations | Shear blades, including those made from H13, can be tailored to meet specific industrial requirements. Compatibility with existing equipment is a key factor in their selection. |
If your blade fits well, you get better results and less downtime. Blades that do not fit can cause damage or slow down your work. Always check your machine’s needs before you order new blades.
Note: Custom blades help you get the best results. They make sure your shearing jobs go smoothly and safely.
The right heat treatment, size, shape, and fit all work together. These steps help you get the most from your H13 hot work shear blades. You get better performance, less wear, and smoother shearing.
You now know that H13 hot work shear blades work well for cutting metal in hot places and for billet shearing. These blades have many good points.
- They last a long time because they are very strong.
- They cut metal cleanly and make neat edges.
- They help save money for your business.
If you pick the right blade and take care of it, you will get the best results. If you need help, you can Hable con nuestro ingeniero de ventas for advice.
Preguntas frecuentes
What are metal shear blades used for?
Metal shear blades cut metal sheets, bars, and plates. You find them in recycling, construction, and manufacturing. They also cut stainless steel and other tough materials with a shearing machine.
How do I choose the right shear blade for my shearing machine?
Pick a blade size and shape that fits your machine. Think about what material you want to cut. Also, consider the type of cutting you need. Alloy steel blades work well for fast jobs and high heat.
Why is H13 steel popular for metal shear blades?
H13 steel handles high heat and resists wear. It gives strong cutting in fast and hot jobs. H13 blades last longer and do not bend easily. They are good for hard metals and tough work.
Can I use carbide shear blades for cutting hard metals?
Yes, carbide shear blades cut hard metals well. Carbide resists wear and cuts fast. These blades work in shearing machines for tough jobs. They cut stainless steel and other strong alloys.
How do I maintain metal shear blades for best cutting performance?
Check your blades often for damage or wear. Clean them after each use. Sharpen or replace dull blades. Good care helps blades cut better and last longer.
What causes wear on shear blades during shearing?
Blades wear out from repeated cutting. Fast cutting, hard materials, and bad alignment make wear worse. Look for dull edges or chips to keep your machine working well.
Are carbide blades better than steel blades for all applications?
Carbide blades resist wear and cut fast, but they can break easily. Steel blades, like H13, are tough and handle heat. Pick your blade based on your machine, cutting job, and metal type.
Can I use metal shear blades for both hot and cold shearing?
Yes, you can use metal shear blades for hot and cold shearing. H13 blades work well in high heat. For cold shearing, use steel or carbide blades that fit your needs.
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