1.2344 is a chromium-molybdenum-vanadium hot work tool steel commonly selected for dies and tooling exposed to heat, pressure, and repeated thermal cycling. It is widely associated with AISI H13 and the designation X40CrMoV5-1, although equivalent grades should not be assumed to have identical specifications or performance. Its balance of hot strength, toughness, wear resistance, and resistance to thermal fatigue makes it useful for many hot-working applications. Buyers should confirm the required standard, delivery condition, dimensions, and heat-treatment requirements before placing an order.
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This guide is for toolmakers, purchasing teams, engineers, and manufacturers comparing hot work steel grades for new tooling or replacement parts. It provides a practical overview of 1.2344’s composition, properties, applications, and commonly cited equivalent grades. It also outlines what information to share with a steel supplier so that the quoted material matches the intended use. Final material selection should be checked against the tool design, operating conditions, and the relevant standard.
1.2344 is a European material number for a hot work tool steel, generally identified by the designation X40CrMoV5-1. It is an alloy steel containing chromium, molybdenum, and vanadium, which are included to support performance at elevated working temperatures and resistance to wear. The steel is normally supplied in an annealed condition for machining, then hardened and tempered as required for the tool. Exact processing recommendations depend on the steelmaker’s data and the part’s geometry.
Commonly published composition ranges for 1.2344 include approximately 0.37–0.43% carbon, 4.80–5.50% chromium, 1.20–1.50% molybdenum, and 0.85–1.15% vanadium by mass. These figures are reference ranges, not a substitute for the material specification or the heat-specific certificate. Silicon and manganese are also present, with their permitted ranges set by the applicable standard. When chemistry is critical, compare the purchase specification with the inspection documents supplied for the actual heat.
1.2344 is valued for a combination of hot strength, toughness, hardenability, and resistance to thermal fatigue. These properties can help a tool withstand repeated heating and cooling, but results depend on heat treatment, section size, machining practice, and service conditions. A typical reference density is about 7.8 g/cm3; use the value required by your design or calculation standard if greater precision is necessary. Hardness and mechanical properties should be specified for the delivered or finished condition rather than treated as fixed values for every supply form.
Several international designations are frequently compared with 1.2344. The table below is a purchasing reference, not a declaration that all grades are interchangeable in every application. Standard editions, chemistry limits, cleanliness requirements, and product-form rules can vary. Confirm the required grade and standard with your engineering team before substituting material.
| Designation | System or common context | Buyer note |
|---|---|---|
| 1.2344 / X40CrMoV5-1 | European designation | Use the applicable European standard and its product requirements. |
| AISI H13 | United States designation | Commonly treated as comparable; verify the governing specification and chemistry. |
| JIS SKD61 | Japanese designation | Often listed as a counterpart, but confirm standard details and acceptance criteria. |
| W.Nr. 1.2344 | European material number | This is the material number used for the grade, not a separate alloy. |
1.2344 is used in tooling that encounters hot metal, elevated temperatures, or repeated thermal cycling. Typical application areas include aluminum and zinc die-casting dies, hot forging dies, extrusion tooling, and components for hot shearing or forming. Suitability depends on the actual temperature, pressure, impact loading, cooling arrangement, and maintenance cycle. A material designation alone cannot predict tool life.
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In die casting, the die surface is repeatedly exposed to hot metal and cooling, so resistance to thermal fatigue and heat checking is an important selection consideration. For forging or hot forming, toughness and resistance to deformation may be important alongside hot strength. Tool geometry, surface finish, preheating, cooling, and heat treatment also affect performance. If a tool fails prematurely, review these conditions as well as the steel grade before changing material.
1.2344 is not automatically the best choice for every hot-work tool. A different grade or processing route may be appropriate where the design requires a particular toughness, wear resistance, cleanliness level, or resistance to a specific failure mode. Corrosion resistance should not be assumed: 1.2344 is a tool steel, not a stainless steel grade. Discuss the operating environment and failure history with your engineering and supply teams before deciding on a substitution.
Do not specify only “H13 equivalent” if compliance with a particular standard is necessary. The phrase can leave uncertainty about chemistry, product form, testing, and acceptance criteria. Where substitution is permitted, document the acceptable grades and approval process in the purchase order. This reduces the risk of receiving a technically similar material that does not meet the project’s requirements.
The price of 1.2344 depends on factors such as dimensions, product form, order quantity, delivery condition, processing, and inspection requirements. Minimum order quantity and lead time can also vary with stock availability, production scheduling, and the requested size. For a useful quotation, provide the grade and standard, section dimensions, quantity, required condition, destination, and any documentation or testing needs. Ask the supplier to identify which requirements are included in the quoted offer.
As a manufacturer, supplier, and exporter of tool steel, Mingchuan can review an inquiry for 1.2344 based on the requested grade, dimensions, quantity, delivery condition, and destination. We recommend sending a drawing or size list together with the applicable standard and inspection requirements. This gives our team the information needed to check the requested supply scope and prepare a relevant quotation. Availability and lead time should be confirmed for each order.
1.2344 is a widely used hot work tool steel for applications such as die casting, forging, and extrusion tooling, where a balance of hot strength, toughness, and thermal-fatigue resistance is sought. AISI H13 and JIS SKD61 are commonly cited comparable grades, but equivalence must be verified against the standards and requirements of your project. Before ordering, define the operating conditions, product form, dimensions, delivery condition, heat-treatment plan, and documentation needs. Share these details with Mingchuan to discuss the appropriate supply option and request a project-specific quotation.
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