SS6625 MS1 Die Steel Powder

MS1 Tool Steel Powder Description

MS1 Tool Steel Powder is a high-performance spherical form steel powder characterised by its exceptional physical, chemical, and mechanical properties, making it ideal for precision tool applications. With a density of 7.8-8.0 g/cm³, it offers high dimensional stability under thermal load due to its optimised alloy composition (e.g., Chromium, Molybdenum) and exhibits moderate thermal conductivity, suitable for scenarios requiring heat dissipation. Its melting point aligns with that of conventional steels (~1538°C); however, improved high-temperature stability (up to 800°C) can be achieved with alloy additions such as Tungsten or Vanadium, which is critical for die casting or injection moulding applications. Chemically, MS1 demonstrates robust corrosion resistance in harsh environments (e.g., while processing chlorine-rich PVC) through chromium-induced passivation (Cr₂O₃ layer) and can be further customised through Stanford Advanced Materials (SAM) to enhance corrosion or oxidation resistance via increased Chromium content (>12%) or surface treatments such as nitriding. Mechanically, the powder achieves a hardness of HRC 50-60 and a tensile strength of 1800-2000 MPa after quenching, ensuring high wear resistance and structural durability. SAM enhances these properties through tailored heat treatments (e.g., low-temperature treatment to minimise retained austenite) and advanced manufacturing techniques, including the optimisation of pre-alloyed powder for additive manufacturing. Applications range from precision injection moulding dies (e.g., for microelectronic components) to die-casting tools for light metal alloys and high-wear stamping tools, with SAM's quality control protocols (e.g., LALI-TOF-MS analysis) ensuring batch consistency and extended material lifespan. Customisable solutions, including biocompatible coatings for medical devices or thermal resistance for aerospace, further expand the industrial adaptability of the product.

MS1 Tool Steel Powder Specification

Properties

Chemical Composition. %

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

MS1 Tool Steel Powder Applications

1. Precision Mould Manufacturing

Injection moulds produced via selective laser melting (SLM) with conformal cooling channels reduce cycle time by 30% (e.g., moulds for automotive lamp housings with a 50% improved cooling performance)

High wear-resistant MIM cores (Metal Injection Moulding) (52-54 HRC hardness) exhibit a 2-3 times longer lifespan than H13 steel

2. Repair of Hot Work Moulds

Laser cladding for crack repair of die-casting moulds achieves a thermal fatigue resistance of >400°C (ASTM G76 standard), particularly for die-casting moulds made from aluminium alloys (e.g., engine block moulds)

3. Development of Functionally Graded Materials

Hybrid stamping moulds consisting of maraging steel (62 HRC cutting edges) and MS1 (48 HRC base) for precision stamping of ultra-high-strength automotive steel sheets (1,500 MPa)

MS1 Tool Steel Powder Packaging

Our products are packaged in customised cartons of various sizes based on material dimensions. Small items are securely packaged in PP cartons, while larger items are placed in bespoke wooden crates. We ensure strict adherence to packaging specifications and the use of appropriate cushioning materials to ensure optimal protection during transit.

Packaging: Carton, Wooden Crate, or customised.

Manufacturing Process

1. Testing Procedures

1. Chemical composition analysis - Verified with techniques such as GDMS or XRF to ensure compliance with purity requirements.

MS1 Tool Steel Powder FAQs

Q1: Can MS1 be used for hybrid repair of existing moulds?

A1: Yes. Parameters for laser cladding:

Power: 1.2-2.0 kW

Powder feed rate: 3.5-5 g/min

Dilution control: <8% at 0.2-0.3 mm build layers

Achieves a bond strength of >450 MPa (ASTM F1147).

Q2: What industry certifications does MS1 meet?

A2: AMS 4999A for PBF materials in aerospace quality

ISO 4957 for tool steels

RoHS/REACH compliant (Cr⁶+ <0.1 weight-% )

Q3: What are the storage requirements?

A3: Nitrogen-sealed containers (<0.1% O₂)

Maximum humidity: 0.02% (recommended storage at 25°C/30% RH)

Shelf life: 12 months unopened

Performance Comparison Table with Competing Products

Associated Information

1. Raw Materials - Iron (Fe)

As the primary matrix element (base metal, ~85-90%), Fe ensures fundamental structural integrity, ductility, and thermal conductivity. It forms an austenitic matrix during printing, which guarantees compatibility with LPBF procedures and facilitates effective stress distribution in applications subjected to high fatigue.

Raw Materials - Carbon (C)

C is crucial for hardness and wear resistance (0.3-0.5%), enabling martensitic transformation during post-manufacturing heat treatment (quenching at 1 020-1 050 °C). Excess Carbon (>0.6%) is avoided to mitigate the risk of brittleness and cracking in AM-produced thin-walled moulds.

Raw Materials - Chromium (Cr)

Adding 4.5-5.5% enhances oxidation/corrosion resistance by forming a passive oxide layer. It forms stable (Cr,Fe)₇C₃ carbides, improving strength at elevated temperatures (up to 600 °C) and thermal fatigue resistance—crucial for injection moulds exposed to cyclic heating. Cr also refines the grain structure, reducing susceptibility to hot cracking during rapid LPBF solidification.