1.2344 is a chromium-molybdenum-vanadium hot work tool steel commonly used for dies and tooling exposed to elevated temperatures, repeated thermal cycling, and mechanical wear. It is also known by the European designation X40CrMoV5-1 and is broadly comparable to AISI H13 and JIS SKD61, although these grades should not be treated as automatically identical in every specification. Buyers can use this guide to review its typical properties, common applications, grade equivalents, and the checks needed before ordering.
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1.2344 is a hot work tool steel identified in the European numbering system, with the grade name X40CrMoV5-1. Its alloying elements are selected to support use in tooling that experiences heat and repeated production cycles. The grade is often supplied as bars, blocks, or other forms for machining into dies, inserts, and related components.
The material is not stainless steel, despite occasional confusion caused by broad supplier categories. Its chromium content contributes to its hot-work performance, but it should not be specified as a stainless, corrosion-resistant grade. For service where corrosion resistance is a primary requirement, buyers should compare materials specifically designed for that environment.
The following ranges are commonly associated with 1.2344 / X40CrMoV5-1 in grade references. They are useful for preliminary material comparison, but the controlling standard, product form, and mill certificate should be checked for the material being purchased.
| Element | Typical range by weight | General contribution |
|---|---|---|
| Carbon (C) | 0.35–0.42% | Contributes to hardness and strength after heat treatment. |
| Chromium (Cr) | 4.80–5.50% | Supports hardenability and performance at elevated temperatures. |
| Molybdenum (Mo) | 1.20–1.50% | Contributes to strength and resistance to softening during hot service. |
| Vanadium (V) | 0.85–1.15% | Supports wear resistance and high-temperature strength. |
1.2344 is valued for a combination of hot strength, wear resistance, and thermal fatigue resistance when correctly processed. These characteristics make it useful where tooling contacts hot metal or cycles between heating and cooling. Actual performance depends not only on the grade, but also on steelmaking quality, section size, machining, heat treatment, surface condition, and operating practice.
In practical terms, buyers should avoid choosing the grade from a headline property alone. A die exposed to severe thermal shock may need a different balance of toughness and hardness than a tool facing higher abrasive wear. The target hardness and heat-treatment procedure should therefore be set with the tool designer or heat-treatment provider, based on the application and the supplier’s product data.
Heat treatment for 1.2344 commonly includes preheating, austenitizing, quenching, and tempering, with the exact cycle selected according to section size and required properties. Typical reference schedules may use an austenitizing temperature around 1,000–1,030°C, but this is not a universal production instruction. Buyers should follow the applicable technical datasheet and qualified heat treater’s procedure rather than applying a generic temperature to every part.
Hardness is likewise dependent on heat treatment and the location and method of measurement. A purchase order should state whether the steel is supplied annealed for machining or in another agreed condition, and whether a final hardness target applies after treatment. Do not assume a particular hardness from the grade name alone.
1.2344 is used in tooling for several hot-forming processes. Its suitability should be assessed against the operating temperature, contact pressure, thermal cycling, cooling method, expected production volume, and repair strategy. These factors help determine whether the grade is appropriate and what condition or processing route to specify.
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AISI H13 and JIS SKD61 are commonly listed as equivalents or close counterparts to 1.2344. This is a useful starting point for cross-reference, especially during sourcing, but “equivalent” does not guarantee identical requirements. Different standards may define chemistry limits, testing, product forms, or delivery conditions differently.
| Designation | System or standard family | Buyer guidance |
|---|---|---|
| 1.2344 / X40CrMoV5-1 | European designation | Use the exact grade and applicable product specification in the purchase documents. |
| AISI H13 | Common US designation | Compare the governing standard and certificate, not just the grade name. |
| JIS SKD61 | Japanese designation | Confirm chemistry, delivery condition, dimensions, and acceptance criteria before substitution. |
For critical tooling, ask the supplier to confirm the proposed cross-reference in writing and provide the applicable mill test certificate. If a customer drawing or approved vendor list specifies one standard, obtain approval before replacing it with another designation. This reduces the risk of differences in processing or acceptance requirements affecting the finished tool.
Describe the tooling process, operating temperature range, thermal cycle, contact material, cooling method, and failure mode of the existing component. If the issue is cracking, wear, heat checking, or deformation, share that information with the steel supplier or tool designer. Application details are more useful than requesting a grade by name alone.
State whether you need round bar, flat bar, block, or a custom-cut piece, together with finished dimensions and machining allowance. Confirm whether the material is required annealed or in another specified condition. The selected size and section can influence processing choices and should be checked against the supplier’s available stock or production route.
Identify the required standard, chemical analysis, inspection documents, marking, and any agreed testing before placing the order. Where traceability is important, make the certificate and batch identification requirements explicit. Clarify whether inspection is required before shipment and who will review the documents.
The price of 1.2344 can vary with dimensions, order quantity, product form, delivery condition, processing, inspection requirements, and market conditions. Minimum order quantities and lead times are likewise supplier- and product-specific, so they should be confirmed for the exact size and specification. For a useful quotation, provide grade, standard, dimensions, quantity, destination, required condition, and documentation needs.
When comparing offers, check that each supplier is quoting the same material condition and scope. A lower price may reflect differences in tolerances, cutting, documentation, or inspection rather than a like-for-like product. Request clarification before comparing costs, particularly when cross-referenced grades are included.
At Mingchuan, we support B2B buyers evaluating 1.2344 hot work steel by discussing grade designation, product requirements, and quotation details. Share your drawing or material specification, required quantity, delivery destination, and intended application so we can review the request and confirm what can be offered. For critical tooling, include any customer-approved standards or substitution restrictions at the inquiry stage.
1.2344 is a widely used hot work tool steel for applications such as die casting, forging, and extrusion tooling where elevated-temperature performance and repeated thermal cycling matter. It is commonly cross-referenced with AISI H13 and JIS SKD61, but these designations should be verified against the required standard and certificate before substitution. To move forward, define the application, specify the product form and delivery condition, and request documentation for the exact material offered.
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