Tool & Die Repair Alloy Powder for Molds, Dies & Tooling – H13, M2, M4 Laser Cladding and DED Metal Powder
Product Overview
GREENSTONE Tool & Die Repair Alloy Powder is a specialized range of tool steel and wear-resistant metal powders developed for the laser cladding, Directed Energy Deposition (DED), repair, remanufacturing and surface reinforcement of industrial molds, dies and tooling.
The portfolio includes internationally recognized tool steel grades such as H13, M2 and M4, together with application-specific modified tool steel compositions designed for enhanced hot hardness, wear resistance, thermal-fatigue resistance and service life.
These powders are suitable for the repair and reinforcement of hot-work dies, forging dies, die-casting molds, extrusion dies, stamping tools, forming dies, cutting tools and other high-value industrial tooling. Depending on the application, GREENSTONE can optimize alloy chemistry and particle-size distribution for laser cladding and powder-fed DED processes.
Through controlled powder production and particle-size classification, GREENSTONE tool steel powders provide consistent powder feeding, stable melt-pool behavior and reliable metallurgical deposition, supporting both localized repair and functional surface enhancement of expensive tooling components.
H13 Tool Steel Powder for Hot-Work Die Repair
H13 is one of the most widely used hot-work tool steels and is particularly suitable for dies and molds exposed to repeated thermal and mechanical loading.
A typical H13 composition contains approximately 0.4% C, 5.1% Cr, 1.1% Si, 1.4% Mo and 1.0% V, with Fe as the balance.
GREENSTONE H13 powder is suitable for laser repair and DED remanufacturing of hot-forging dies, die-casting dies, extrusion tooling and other hot-work components.
Its Cr-Mo-V alloy system provides a useful combination of:
- Hot hardness
- Thermal-fatigue resistance
- Toughness
- Wear resistance
- Tempering resistance
- Resistance to heat checking
Modified H13-Based Tool Steel Powder
For applications requiring performance beyond conventional H13, GREENSTONE can provide modified H13-based alloy powders.
Alloying strategies may include controlled additions or optimization of W, Mo, V and other strengthening elements to improve red hardness, high-temperature strength and resistance to softening during repeated thermal cycling.
These compositions are particularly suitable for high-load hot forging dies, die-casting tooling and other molds where conventional H13 service life is insufficient.
Precipitation-Strengthened Tool Steel Powder
For mold applications requiring a combination of strength and resistance to cracking, customized precipitation-strengthened tool steel powders can be supplied.
The alloy chemistry and heat-treatment response can be tailored according to substrate material, operating temperature and required mechanical properties.
This category is particularly useful for specialized mold repair where simple increases in coating hardness could otherwise increase cracking susceptibility.
Wear-Resistant Reinforced Tool Steel Powder
For dies exposed to severe abrasive or adhesive wear, GREENSTONE can provide modified tool steel matrices containing wear-resistant strengthening phases or optimized carbide-forming elements.
These materials are intended to improve local wear resistance on critical die surfaces while retaining an appropriate metallic matrix for metallurgical bonding.
Typical applications include die edges, forming surfaces, high-contact regions and localized wear zones.
M2 High-Speed Tool Steel Powder
M2 is a molybdenum-tungsten high-speed steel characterized by high hardness, excellent wear resistance and good hot-hardness retention.
Typical nominal composition is approximately:
0.85% C, 4% Cr, 5% Mo, 6% W and 2% V, with Fe as the balance.
M2 powder is suitable for the repair or surface reinforcement of cutting tools, punches, dies, forming tools and wear-intensive tooling components.
M4 High-Speed Tool Steel Powder
M4 is a high-carbon, high-vanadium high-speed tool steel offering greater carbide content and wear resistance than conventional M2.
A typical M4 composition contains approximately 1.3% C, 4% Cr, 4.5–5.5% Mo, 5.5–6.75% W and 3.75–4.5% V, with Fe as the balance.
It is particularly suitable for applications requiring high abrasive wear resistance, edge retention and high hardness, including demanding punches, dies and tooling surfaces.
Optimized for Laser Cladding and DED
Laser cladding and powder-fed DED are particularly valuable for high-cost tooling because damaged areas can be restored without replacing the complete mold or die.
GREENSTONE powders can be used for:
Dimensional restoration → metallurgical repair → localized reinforcement → functional coating → mold remanufacturing.
Controlled laser heat input can help limit the heat-affected zone and distortion compared with conventional high-heat-input repair processes, although actual results depend on substrate, geometry, preheating, interpass temperature and process parameters.
Key Advantages
- Internationally recognized H13, M2 and M4 tool steel grades available
- Designed for mold and die repair, laser cladding and DED
- Excellent wear resistance for high-load tooling
- High-temperature hardness and thermal stability
- Good resistance to thermal fatigue for hot-work tooling
- Metallurgical bonding with compatible tool-steel substrates
- Suitable for precision restoration of worn and damaged mold surfaces
- Allows localized reinforcement of high-wear regions
- Supports repair of high-value molds rather than complete replacement
- Powder chemistry and particle size can be customized for different DED systems
- Modified tool-steel compositions available for specialized operating conditions
GREENSTONE Tool & Die Repair Alloy Powder Series
| Alloy / Material Type | Typical Chemical Composition (wt.%) | Key Performance | Typical Particle Size | Recommended Process | Typical Application |
|---|---|---|---|---|---|
| H13 | C 0.32–0.45; Cr 4.75–5.50; Mo 1.10–1.75; V 0.80–1.20; Si 0.80–1.20; Fe Bal. | Hot hardness, toughness, thermal-fatigue resistance | 53–150 μm | Laser Cladding / DED | Hot-work die repair, forging dies, die-casting molds |
| Modified H13-Based Alloy | H13-based, alloy chemistry customized | Enhanced hot hardness and thermal stability | 53–150 μm | Laser Cladding / DED | Extended-life hot-work tooling |
| Precipitation-Strengthened Tool Steel | Application-specific Fe-based alloy | Strength, toughness and crack resistance | 53–150 μm | Laser Cladding / DED | High-load mold repair |
| Wear-Resistant Reinforced Tool Steel | Fe-based matrix + strengthening phases | Enhanced abrasive and adhesive wear resistance | 53–150 μm | Laser Cladding / DED | Critical mold wear zones |
| M2 | C 0.78–1.05; Cr 3.75–4.50; Mo 4.50–5.50; W 5.50–6.75; V 1.75–2.20; Fe Bal. | High hardness, hot hardness and wear resistance | 53–150 μm | Laser Cladding / DED | Cutting tools, punches, dies and wear surfaces |
| M4 | C 1.25–1.40; Cr 3.75–4.75; Mo 4.25–5.50; W 5.50–6.75; V 3.75–4.50; Fe Bal. | Very high wear resistance and carbide strengthening | 53–150 μm | Laser Cladding / DED | Severe-wear tooling, punches and dies |
Note: Chemical composition ranges should be confirmed against the required material specification before order production. Customized particle-size distributions are available according to laser cladding or DED equipment requirements.
General Powder Specifications
| Parameter | Specification |
|---|---|
| Product Category | Tool & Die Repair Alloy Powder |
| Standard Grades Available | H13 / M2 / M4 |
| Material Family | Tool Steel / High-Speed Steel / Modified Tool Steel |
| Powder Matrix | Fe-Based |
| Typical Particle Size | 53–150 μm |
| Optional Particle Sizes | Customized for specific powder-fed processes |
| Primary Processes | Laser Cladding / Powder-Fed DED |
| Primary Function | Repair / Remanufacturing / Surface Reinforcement / Dimensional Restoration |
| Powder Feeding | Suitable for compatible coaxial or off-axis powder feeding systems |
| Typical Substrates | Tool Steels / Die Steels / Compatible Ferrous Alloys |
| Customization | Composition and particle size available according to application |
| Packaging | Sealed moisture-resistant packaging; customized weight available |
| Brand | GREENSTONE |
Typical Applications by Industry
| Industry / Component | Recommended Material | Primary Requirement |
|---|---|---|
| Hot Forging Dies | H13 / Modified H13 | Thermal fatigue + hot hardness |
| Aluminum Die-Casting Molds | H13 / Modified H13 | Heat checking resistance + repair |
| Extrusion Dies | H13 / Modified Tool Steel | Hot wear + thermal stability |
| Plastic Injection Molds | Application-Specific Tool Steel | Local repair + dimensional restoration |
| Stamping Dies | M2 / Modified Tool Steel | Wear resistance |
| Punches & Forming Tools | M2 / M4 | High hardness + edge retention |
| Cutting Tool Surfaces | M2 / M4 | Abrasive wear resistance |
| High-Wear Die Edges | M4 / Reinforced Tool Steel | Severe wear resistance |
| Damaged Mold Cavities | H13 / Application-Specific Alloy | Precision restoration |
| High-Value Tooling Remanufacturing | H13 / M2 / M4 / Customized | Service-life extension |
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