H13 1.2344 SKD61 ESR Hot Work Tool Steel Round Bar Flat Alloy Steel for Industrial Applications

Basic Specifications

Model NO.

1.2344 / H13 / SKD61/ 8407

Surface Condition

Black ; Grinded ; Machined; Turned

Application

High-Strength Steel Plate, Wear Resistant Steel

Processing

Bending, Welding, Decoiling, Cutting, Punching

Heat Treatment

Normalized ; Annealed ; Quenched ; Tempered

Technique

Cold Drawn/Cold Rolled/Hot Rolled

Size Range

Thickness: 10~400mm X 205~810 X 2500~5000

Standard

AISI, ASTM, BS, DIN, GB, JIS

HS Code

7228300000

Capacity

5000 Tons/Month

Product Description

1.2344 H13 Hot work steel is a die steel designed for pressure and heat applications. Remelted by electroslag, the material offers uniform structure, good hardenability, and excellent machinability. It features high toughness, plasticity, and superior resistance to high-temperature fatigue and wear.

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Pure Material: Vacuum degassing refining treatment ensures ultra-pure steel quality.

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Superior Wear Resistance: Added vanadium and molybdenum strengthening elements.

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Heat Performance: Suitable for long-term work at high temperatures with stable performance.

International Standards

DIN	JIS	GB	ASIA
1.2344	SKD61	H13	8707

Chemical Composition (Wt%)

C	Si	Mn	Cr	Mo	S	P	V
0.35-0.40	1.00-1.20	0.40-0.60	4.80-5.20	1.20-1.40	≤0.003	≤0.003	0.80-1.00

Available Sizes (mm)

Flat Bar Size			Round Bar Size
Thickness	Width	Length	Diameter	Length
6-400	205-610	2500-5800	10-400	2500-5800

Production Process

Electric-Furnace Smelting (EF) → Ladle Furnace (LF) → Vacuum Degassing (VD) → Argon Protected Ingot → Multidirectional Forging → Normalizing + Hydrogen Diffusion Annealing → Ultrasonic Flaw Detection → Quenching + Tempering Prehardened.

Main Characteristics

🔹 High hardenability and high toughness.

🔹 Excellent resistance to thermal cracking; water-coolable.

🔹 Moderate wear resistance (upgradeable via nitriding).

🔹 Maintains anti-softening ability up to 540 ºC.

🔹 Minimal deformation during heat treatment.

🔹 Medium and high machinability and polishing performance.

Product Showcase

Heat Treatment Parameters

Quenching (Temp ºC)			Cooling	Hardness	Tempering	Annealing (HB)
500-750	750-800	1020-1050	Oil/Air	56-58 HRC	560-580 ºC	205-235 HB

Industrial Applications

Highly stressed hot work tools and dies, pressure casting dies for light metals, mandrels, die holders, bolsters, stems, punches, and containers for metal tube and rod extrusion. Also ideal for hot shear blades, hot forming and forging dies for steels, brass and aluminum, and high-yield plastic moulding dies.

Quality Control & Inspection

Each piece of steel undergoes rigorous inspection before delivery:

🔍 Ultrasonic Testing

🔍 Spectro-graphical Analysis

🔍 Hardness Testing

🔍 Micro-structure Analysis

Frequently Asked Questions

Q1: How do you ensure the quality of the steel?

All products undergo 100% ultrasonic inspection before loading. Our quality grades conform to SEP 1921-84 standards (E/e, D/d, C/c) based on customer requirements.

Q2: What are the most common hot-selling tool steel grades?

Our top sellers include D2/1.2379, H13/1.2344, CR12MOV, DC53, and CR8. We maintain abundant stock for both plates and rounds with competitive lead times.

Q3: What are the main features of 1.2344/H13 steel?

It offers high hardenability, high toughness, and excellent resistance to thermal cracking. It is capable of stable operation at temperatures up to 540 ºC.

Q4: Are you a manufacturer or a trader?

We are a group of companies with integrated manufacturing bases and trading services, specializing in mold steel and alloy steel for mechanical applications.

Q5: What processing services are available?

We provide a wide range of processing services including milling, precision grinding, sawing, drilling, and custom heat treatments to meet specific technical requirements.

Q6: What is the delivery condition for H13 hot work steel?

Typically, it is delivered as Hot Forged + Rough Machined + Black surface, but we can provide turned or ground surfaces upon request.