H13 Steel Equivalent Grades

H13 steel is commonly equivalent to DIN / EN 1.2344, JIS SKD61, GB 4Cr5MoSiV1, X40CrMoV5-1, and UNS T20813. These designations are used in different standards for the same H13 chromium-molybdenum-vanadium hot-work tool steel family.

Aobo Steel supplies H13 | 1.2344 | SKD61 hot-work tool steel in an annealed condition for bulk industrial buyers. For product details, sizes, and supply conditions, see our H13 | 1.2344 | SKD61 hot-work tool steel page, or contact [email protected] for quotation.

Is 1.2344 the Same as H13 Steel?

Yes. DIN / EN 1.2344 is the European equivalent of H13 steel.

H13 is the AISI / SAE / ASTM designation. 1.2344 is the DIN / EN material number. In European specifications, 1.2344 is also known as X40CrMoV5-1.

In purchasing, H13 and 1.2344 are typically treated as equivalent grades. The buyer should still confirm whether the order requires ASTM, DIN/EN, JIS, GB, or another agreed-upon standard. This matters when the project has strict requirements for chemistry, ultrasonic testing, size tolerance, or certification.

Is SKD61 the Same as H13 Steel?

Yes. SKD61 is the Japanese JIS equivalent of H13 steel.

H13 is widely used in American and international specifications. SKD61 is used in Japanese and Asian market specifications. Both names refer to the same H13 5% chromium hot-work tool steel.

If a buyer sends an inquiry for SKD61, the supplier should confirm whether the customer accepts H13/1.2344/SKD61-equivalent material. The order should also state the required size, condition, tolerance, surface finish, inspection level, and certificate requirement.

Is 4Cr5MoSiV1 the Chinese Equivalent of H13?

Yes. 4Cr5MoSiV1 is the Chinese GB equivalent of H13 hot-work tool steel.

The Chinese grade name reflects the alloy design. The “4” indicates about 0.4% carbon. “Cr5” indicates about 5% chromium. “Mo”, “Si”, and “V1” indicate molybdenum, silicon, and vanadium additions.

For export communication, Chinese suppliers often write this material as H13 / 1.2344 / SKD61 / 4Cr5MoSiV1. This makes the equivalent relationship clear to international buyers and reduces misunderstandings during inquiries, quotations, and document reviews.

Is X40CrMoV5-1 the European Name for H13?

Yes. X40CrMoV5-1 is the European chemical designation for H13 / 1.2344 hot-work tool steel.

The European system may use both a material number and a chemical name. For H13 equivalent material, the material number is 1.2344, and the chemical designation is X40CrMoV5-1.

If a drawing specifies X40CrMoV5-1, it typically refers to the same H13 hot-work tool steel, which may also be written as 1.2344, H13, or SKD61.

Is UNS T20813 the Same as H13?

Yes. UNS T20813 is the Unified Numbering System designation for H13 tool steel.

H13 is the common grade name. T20813 is the UNS identification code for the same tool steel grade.

The “T” in UNS T20813 identifies the material as a tool steel. In technical documents, UNS T20813 helps avoid confusion when multiple grade-naming systems are used together.

If a drawing specifies UNS T20813, a supplier can normally quote H13 tool steel, provided the material meets the required standard, condition, inspection, and documentation requirements.

Why These Grades Are Treated as H13 Equivalents

H13, 1.2344, SKD61, 4Cr5MoSiV1, X40CrMoV5-1, and UNS T20813 are treated as equivalents because they are based on the same chromium-molybdenum-vanadium hot-work steel design.

A typical H13 composition is:

This alloy balance gives H13 steels good hot strength, toughness, hardenability, and resistance to thermal fatigue. Chromium supports hardenability. Molybdenum improves resistance to softening at high temperatures. Vanadium contributes to wear resistance and tempering resistance.

The final performance still depends on steelmaking quality, forging quality, section size, heat treatment, and inspection requirements. This is why equivalent grades should be confirmed by both grade name and order specification.

Is 1.2343 the Same as H13?

No. 1.2343 is not the same as H13 / 1.2344.

This distinction is important because 1.2343 and 1.2344 are easy to confuse. 1.2344 is the DIN / EN equivalent of H13. 1.2343 is the DIN / EN equivalent of H11.

H11 and H13 are both chromium-based hot-work tool steels, but they are not identical. H13 typically has a higher vanadium content, which enhances wear and tempering resistance. H11 is often considered when toughness and thermal shock resistance are more important.

For purchasing, do not replace H13 / 1.2344 with H11 / 1.2343 unless the engineering team approves the substitution.

Aobo Steel supplies H13 hot-work tool steel for distributors, stockists, mold manufacturers, and bulk industrial buyers. The material can be quoted as H13, 1.2344, SKD61, 4Cr5MoSiV1, or X40CrMoV5-1, depending on the buyer’s drawing, purchase standard, and documentation requirements.

For product details, available supply forms, and order information, please visit our H13 tool steel product page. For a quotation, send your grade, size, quantity, surface condition, inspection requirements, and delivery terms to [email protected].