Markforged,3D Printed A2 Tool Steel Sheet,Plate, Heat-Treated

Markforged 3D Printed A2 Tool Steel Sheet/Plate, Heat-Treated Product Information -:- For detailed product information, please contact sales. -: Markforged 3D Printed A2 Tool Steel Sheet/Plate, Heat-Treated Synonyms -:- For detailed product information, please contact sales. -:

Markforged 3D Printed A2 Tool Steel, Heat-Treated Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Markforged 3D Printed A2 Tool Steel (Heat-Treated)** ## **1. Overview** **Markforged 3D Printed A2 Tool Steel** is an advanced **additively manufactured (AM), air-hardening cold work tool steel** produced via **Metal Fused Filament Fabrication (Metal FFF)** technology followed by **industry-standard heat treatment**. This material represents the digital transformation of the classic **AISI A2 (UNS T30102)** tool steel, enabling the production of complex, monolithic tooling components—such as conformal cooling channels, lightweight structures, and integrated assemblies—that are difficult or impossible to manufacture through traditional methods. While its base composition targets the A2 specification, its microstructure and properties are defined by the unique layer-by-layer printing process and subsequent debinding, sintering, and heat treatment cycles. This technology bridges the gap between the design freedom of additive manufacturing and the demanding performance requirements of production tooling and end-use parts. ## **2. Manufacturing Process & Specifications** This material is defined by a proprietary digital manufacturing process rather than conventional mill specifications. * **Primary Manufacturing Process:** * **Markforged Metal FFF (Metal X System):** A two-stage additive process: 1. **Printing:** Extrusion of a metal-polymer composite filament ("bound metal deposition") to create a "green" part. 2. **Post-Processing:** **Debinding** (catalytic or solvent) to remove the polymer binder, followed by **sintering** in a furnace to fuse the metal particles into a dense (>99%) solid. This results in a "brown" part. * **Final Heat Treatment:** The sintered part undergoes a full **austenitize, quench, and temper (AQT) cycle**—typically in a vacuum or controlled atmosphere furnace—to achieve the final tool steel microstructure and properties. This step is critical and is performed according to Markforged-specified or user-defined protocols. * **Material Classification:** * **Type:** **Additively Manufactured A2-Type Tool Steel**. * **Not a Direct Standard Equivalent:** It is **not** an ASTM A681 A2 bar stock. Its properties are **process- and geometry-dependent**. Markforged provides guaranteed **minimum** property values for standardized test specimens printed and processed under optimal conditions. * **Industry Position:** Competes with other AM tool steels from binder jetting (e.g., ExOne, Desktop Metal) and Laser Powder Bed Fusion (LPBF) processes, offering a distinct balance of cost, resolution, and ease of use. ## **3. Chemical Composition (Weight %, Target)** The feedstock filament is formulated to achieve a sintered chemistry approximating standard A2 after processing. | Element | Target Range (%) (Post-Sintering) | Role & Benefit | |---------|-----------------------------------|----------------| | **Carbon (C)** | ~0.95 – 1.05 | For martensitic hardness and wear resistance. Sintering atmosphere must be controlled to manage carbon loss. | | **Chromium (Cr)** | ~4.75 – 5.50 | Provides air hardenability and wear resistance. | | **Molybdenum (Mo)** | ~0.90 – 1.40 | Enhances hardenability and toughness. | | **Vanadium (V)** | ~0.15 – 0.50 | For grain refinement and wear resistance. | | **Other Elements:** Iron (Fe) balance, with Mn, Si similar to standard A2. The precise chemistry can vary slightly based on sintering parameters and feedstock batch. | ## **4. Typical Physical & Mechanical Properties (As Printed & Heat Treated)** * **Important Note:** Properties are **anisotropic** (direction-dependent). Values are typically highest in the plane of printing (XY) and lower in the build direction (Z) due to layer adhesion characteristics. * **Density:** >99% of theoretical density (after sintering and HIPping if applied). * **As-Sintered Condition:** Soft, suitable for machining or EDM before final heat treatment. * **After Final Heat Treatment (Typical Values - XY Direction):** * **Hardness:** **58 – 61 HRC** (achievable with proper heat treatment). * **Ultimate Tensile Strength (UTS):** **1500 – 1850 MPa** (218,000 – 268,000 psi) *[Guaranteed minimums are lower, e.g., ~1400 MPa]*. * **Yield Strength (0.2% Offset):** **1300 – 1600 MPa** (189,000 – 232,000 psi). * **Elongation at Break:** **1 – 3%.** **Significantly lower than wrought A2.** Ductility is a key limitation of the as-sintered, heat-treated MFF/FFF microstructure. * **Impact Toughness:** **Lower than wrought A2.** The microstructure contains sintering pores and lacks the directional grain flow of forged material, reducing energy absorption. * **Wear Resistance:** **Good,** comparable to wrought A2 at similar hardness, due to the hard martensitic matrix and carbides. * **Thermal Conductivity:** Similar to wrought steel. ## **5. Product Application** This material is ideal for **complex tooling inserts and end-use parts** where geometry, not ultimate material performance, is the limiting design factor. * **Injection Molds & Tooling Inserts:** * **Cores and cavities with conformal cooling channels** for dramatically reduced cycle times and warpage. * **Complex ejector pins, sliders, and lifters.** * **Lightweight, optimized mold bases and support structures.** * **Jigs, Fixtures, and End-of-Arm Tooling:** * **Custom gripping jaws, assembly fixtures, and drill guides.** * **Lightweight robotic end-effectors.** * **Prototype and Low-Run Production Tools:** * **Forming dies, bending tools, and stamping inserts** for short runs where rapid tooling turnaround is critical. * **Replacement Parts for Legacy Machinery:** One-off replacement of complex, worn components. ## **6. Key Features & Advantages** * **Geometric Freedom & Integration:** Enables internal conformal cooling, lattice structures, part consolidation, and topology-optimized designs unattainable with machining. * **Rapid Tooling Lead Time:** From digital file to hardened tool in days, not weeks. * **Material Efficiency:** Near-net-shape production minimizes material waste compared to machining from solid block. * **Accessibility:** Metal FFF systems are more office-/shop-floor-friendly than powder-based LPBF systems, with less hazardous feedstock handling. * **Good As-Printed Surface Finish:** Suitable for many mold applications, often reducing post-processing. * **Achieves Tool Steel Hardness:** Proper heat treatment enables real production use. ## **7. Critical Design & Processing Considerations** * **Anisotropy:** Parts are weakest in the build direction (Z-axis). **Orient critical loads within the XY printing plane.** * **Limited Ductility and Toughness:** Not suitable for high-impact or high-fatigue applications where wrought A2 would be used. Avoid sharp corners and design for stiffness, not toughness. * **Support Structure & Distortion:** Requires careful support design for overhangs. Sintering and heat treatment can cause distortion; designs should accommodate or be stress-relieved. * **Post-Processing is Mandatory:** **Debinding, sintering, and heat treatment are not optional.** These are separate, critical furnace processes requiring significant time and expertise. * **Surface Porosity:** As-sintered surfaces may have micro-porosity, which can be sealed via infiltration (for some materials) or surface treatments like nitriding. * **Property Variability:** Final properties depend heavily on print orientation, part geometry, sintering profile, and heat treatment consistency. **Characterize with your own geometry and process.** **Summary:** Markforged 3D Printed A2 Tool Steel is not a drop-in replacement for wrought A2 bar stock. It is a **new manufacturing paradigm for tooling.** Its value proposition lies in **enabling revolutionary tool designs that solve thermal management and weight problems,** trading off some mechanical performance (especially ductility and isotropic toughness) for unprecedented geometric capability and speed. For applications where conformal cooling, part consolidation, or rapid prototyping of complex tools delivers a decisive economic or performance advantage, it is a powerful solution. Success requires designers to think additively, respect the material's process-driven limitations, and leverage its unique strengths to create tools that outperform their conventionally made counterparts in specific, high-value ways. -:- For detailed product information, please contact sales. -: Markforged 3D Printed A2 Tool Steel, Heat-Treated Specification Dimensions Size： Diameter 20-1000 mm Length <7061 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. -: Markforged 3D Printed A2 Tool Steel, Heat-Treated Properties -:- For detailed product information, please contact sales. -:

Applications of Markforged 3D Printed A2 Tool Steel Sheet,Plate, Heat-Treated -:- For detailed product information, please contact sales. -: Chemical Identifiers Markforged 3D Printed A2 Tool Steel Sheet,Plate, Heat-Treated -:- For detailed product information, please contact sales. -:

Packing of Markforged 3D Printed A2 Tool Steel Sheet/Plate, Heat-Treated -:- 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 Sheet/Plate 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 3532 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