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DIN 1.2367 hot work tool steel manufacturer

1.2367 tool steel delivers superior toughness, thermal fatigue resistance, and excellent high-temperature hardness. With good hardenability, ideal for heavy-duty die casting, hot forging, and extrusion tooling.

Standard: AISI H11 Mod, DIN 1.2367, JIS SKD61 Mod, GB 4Cr5Mo2V
Technique: EAF + LF + VD or ESR, forged, multi-directional forging ratio ≥4, stress-relief annealed
Shape: Round, Flat, Plates, Blocks
Heat treatment: Supplied in annealed condition, hardness ≤229 HBW; pre-hardened to 46–52 HRC (quenched and tempered) available on request
Surface Treatment: Black (hot-rolled / forged surface), turned, milled / ground, sawn ends
Tolerance: flat bars & plates thickness: +0.5/-0.0 mm (turned); forged blocks: ±0.2 mm
MOQ: 1 Ton

We supply DIN 1.2367 in various custom sizes

Chemical Composition (%)

Grade	C	Si	Mn	P (≤)	S (≤)	Cr	Mo	V
1.2367 (DIN)	0.35–0.42	0.30–0.50	0.30–0.50	0.025	0.005	4.80–5.50	2.80–3.20	0.50–0.80
H11 Mod (NX)	0.33–0.43	0.80–1.20	0.20–0.50	0.020	0.003	4.75–5.50	2.20–2.80	0.40–0.70
SKD61 Mod (NX)	0.35–0.42	0.80–1.20	0.20–0.50	0.020	0.003	4.80–5.50	2.00–2.60	0.60–1.00
4Cr5Mo2V (NX)	0.35–0.42	0.30–0.60	0.30–0.60	0.020	0.003	4.50–5.50	2.00–2.50	0.40–0.80

Main characteristics of 1.2367 tool steel

1.2367 tool steel applications

1.2367 steel for Heavy-Duty Die Casting Die

Enhanced molybdenum content provides 1.2367 with superior resistance to thermal fatigue and heat checking, ideal for large-scale aluminum and magnesium die casting dies under extreme thermal cycling.

1.2367 steel for Hot Extrusion Tooling

Excellent high-temperature strength and creep resistance ensure dimensional stability and extended service life in hot extrusion of light alloys and copper alloys.

1.2367 steel for Precision Hot Forging Die

Outstanding temper resistance and toughness enable reliable performance in precision hot forging, maintaining tight tolerances under sustained thermal and mechanical loads.

Our Production Technology For 1.2367 (X38CrMoV5-3 / W303) Hot Work Tool Steel

Ultrasonic testing (UT) 100% as per SEP 1921, ASTM A388, or EN 10308 (upon request)
Micro Cleanliness as per ASTM E45 or DIN 50602
Spheroidized microstructure as per standard NADCA#207-2003
Macrostructure, microstructure, grain size, and mechanical properties shall meet the standards specified in GB/T 1299-2025 for Tool and Die Steels

mechanical properties & heat treatment of 1.2367 steel

Heat temperature	Start forging temperature	Finish forging temperature	Cooling method
1120 – 1150 °C	1080 – 1100 °C	≥ 900 °C	Pit or sand cooling

Annealing

Hardening

Preheating (two-stage, required):
First stage: 540 – 650°C — hold for 30 minutes per 25mm of section thickness.
Second stage: 845 – 870°C — hold for 30 minutes per 25mm of section thickness
Austenitizing temperature: 1030 – 1080°C.
Recommended range: 1030 – 1070°C.
Optimal value: 1050°C (for best property balance).
For pressurized gas quenching: higher austenitizing temperature may be required
Holding time: 30 minutes per 25mm of section thickness (or up to 30 minutes for smaller sections)
Quenching media: Air, oil, or warm bath (500 – 550°C).
For cross sections up to moderate size, cooling in still air is sufficient.
For larger sections, use air blast, pressurized gas quench, or oil quench.
For oil quench: quench until black (approx. 482°C), then air cool to hand-warm temperature
Hardness after quenching: 53 – 57 HRC

Stress relieving

Tempering

Temper immediately after the workpiece cools to hand-warm temperature (approx. 50 – 70°C)
Number of tempers: Minimum 2 times. Three tempers are recommended for complex shapes, critical applications, or when tempering in the secondary hardening range
Holding time: 60 minutes per 25mm of section thickness (minimum 2 hours per cycle)
Cooling method: Air cool after each tempering cycle
Recommended tempering temperature range: 500 – 650°C (typically 550 – 620°C for optimal property balance).
Tempering below 500°C → high hardness but reduced toughness, suitable for wear-resistant applications with moderate thermal exposure.
500 – 550°C → secondary hardening range (peak at ~510°C, approx. 56 HRC); high hot hardness and wear resistance, excellent for die-casting and hot forging tools.
550 – 620°C → optimal combination of strength, toughness, and thermal fatigue resistance.
Above 620°C → higher toughness but reduced hardness and hot strength
Third temper (optional): For additional stress relief, perform a third temper at 30 – 50°C below the highest tempering temperature used

Why Choose NSPM as Your 1.2367 Tool Steel Supplier

Source Direct

Direct mill cooperation ensures stable supply, competitive pricing, and consistent quality. Global resource integration and strong supply chain management guarantee reliable material sourcing and long-term availability.

Stock Ready

50,000+ tons inventory across 11 warehouses enables fast delivery. Flexible cutting, short lead times, and ready stock support urgent demands and improve customers’ production efficiency.

Expert Team

600+ professionals, including R&D specialists and technical engineers, provide application-driven support. Fast response and deep tooling knowledge ensure accurate solutions for diverse industrial needs.

Fully Inspected

Strict quality control system with full traceability, UT testing, and heat treatment records. Certified standards (ISO, CE) ensure every material meets high-performance and reliability requirements.

Full-Chain Machining

From steel supply to precision machining, heat treatment, and equipment manufacturing, NSPM offers integrated solutions that enhance accuracy, efficiency, and overall tooling performance.