Meltio Tool Steel H11

Product catalog summary

Introduction
Tool Steel H11 is a hot-work steel commonly used for making hot-working tools such as forging, die-casting, extrusion, and plastic molds due to its resistance to thermal fatigue cracking and high-temperature abrasion. It is also used in the aerospace industry for mechanical components.

Material Properties

Wire Density: 7.81 g/cm³
Melting Point: 1753 K (1480 ºC, 2700°F)
Wire Diameter: 1.0 mm
Weight on Spool: 15 kg
Volume on Spool: 1920 cm³
Wire Coating: Copper

Heat Treatment and Deposition Parameters
Tool Steel H11 is an air-hardening tool steel that requires a heat-treatment cycle to achieve desired properties. The process includes annealing, hardening, and tempering steps. Specific printing parameters ensure fully dense samples, with laser power, velocity, argon flow, layer height, and wire speed being critical factors.

Mechanical Properties
Testing shows that 3D printed specimens perform comparably to conventionally manufactured samples. Key mechanical properties include:

Ultimate Tensile Strength (UTS): 1990 MPa (Wrought), 2087 ± 2 MPa (HT.1 + HT.2 + HT.3), 1830 ± 105 MPa (As Printed)
Yield Strength: 1650 MPa (Wrought), 1735 ± 101 MPa (HT.1 + HT.2 + HT.3), 1170 ± 90 MPa (As Printed)
Elongation: 10% (Wrought), 12.18 ± 0.19% (HT.1 + HT.2 + HT.3), 3.46 ± 0.36% (As Printed)
Hardness: 53 HRC (Wrought), 51 HRC (HT.1 + HT.2 + HT.3), 52 HRC (As Printed)

Cladding and Dual Material Applications
Tool Steel H11 is suitable for cladding applications due to its wear, deformation, and heat resistance. It forms a dense, well-bonded coating layer with high wear resistance, hardness, and temperature resistance.

Elemental Mapping and Hardness Profile
Elemental mapping shows low dilution between SS316L and H11. Hardness measurements across the material transition indicate that a single cladding layer achieves stable properties.

Conclusion
Meltio's Tool Steel H11 offers high strength, temperature resistance, and hardness, making it ideal for aerospace components, cutting tools, and molds. The material's properties are under constant development, and specifications may change.

Catalog excerpts

Meltio Material Datasheet Rev 2.0 Meltio Tool Steel H11 Tool Steel H11 /1.2343 Tool Steel H11 is one of the most commonly used tool steels. It is a hot-work steel that is used to make hot-working tools such as forging, die-casting, extrusion, and plastic molds due to its resistance to thermal fatigue cracking and high-temperature abrasion. In addition to hot-working tools, it is also used to produce cutting tools and in the aerospace industry for mechanical components.

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Meltio Material Datasheet Tomography Computed Tomography Scan of 3D printed sample part in H11 without detectable voids or defects. Resolution of 24 pm per pixel. Tool Steel H11 displays tempered and fresh martensite, retained austenite, and columnar grain morphology aligned with the solidification front. Heat treatment reduces retained austenite and refines the grain to a primarily equiaxed shape, converting most of the martensite. Trace amounts of austenite may remain undetectable with light microscopy. Relative density as 3D printed Mechanical Properties Results show that specimens printed...

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m G LTI □ Meltio Material Datasheet Meltio Tool Steel H11 Tool Steel H11 / 1.2343 Cladding and Dual Material Applications Tool Steel H11 is highly resistant to wear, deformation and heat, which makes it an excellent material for cladding or dual material applications where not the entire component requires these properties. H11 steel has excellent weldability and can be used to form a dense and well-bonded coating layer that provides high wear resistance, high Hardness and temperature resistance as well as good corrosion resistance. Elemental Mapping Elemental (EDX) Mapping is employed to characterize...

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