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D2 Mod 1.2360 MOD DC53 Cold Work Tool Steel

1.2360 MOD Cold Work Tool Steel offer high wear resistance, excellent toughness, and good compressive strength. With improved hardenability and stability, ideal for cold forming, blanking, and precision dies.

Standard: AISI D2 Mod, DIN 1.2360 MOD, JIS DC53, GB Cr8Mo2SiV
Technique: EAF + LF + VD or ESR, forged, multi-directional forging ratio ≥4, spheroidized annealed
Shape: Round, Flat, Plates, Blocks
Heat treatment: Supplied in annealed condition, hardness ≤255 HBW; pre-hardened to 58–62 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 1.2360 MOD in various custom sizes

Chemical Composition (%)

Grade	C	Si	Mn	Cr	Mo	V	P (≤)	S (≤)
DC53	0.90–1.05	0.80–1.10	0.20–0.50	7.80–8.50	1.80–2.10	0.15–0.35	0.030	0.030
Cr8Mo2SiV	0.90–1.05	0.80–1.20	0.30–0.50	7.50–8.50	1.80–2.20	0.20–0.40	0.030	0.030
1.2360 MOD	0.90–1.10	0.80–1.20	0.30–0.60	7.80–8.50	1.80–2.50	0.30–0.60	0.025	0.005
D2 Mod	1.00–1.20	0.80–1.20	0.30–0.60	7.50–9.00	1.80–2.50	0.30–0.60	0.025	0.005

Main characteristics of 1.2360 MOD tool steel

High wear resistance – extends tool life in abrasive applications
Excellent toughness – resists cracking and chipping under impact
Good compressive strength – withstands high forming pressures
Improved hardenability – uniform performance in large-section tools

D2 Mod | 1.2360 MOD | DC53 tool steel applications

1.2360 MOD steel for Precision Stamping Die

Superior toughness and high wear resistance keep DC53 cutting edges sharp and chip-free, delivering consistent precision over extended high-volume stamping runs.

1.2360 MOD steel for Cold Forging Die

Exceptional impact resistance and high compressive strength allow DC53 to withstand extreme cold forging pressures, drastically reducing premature cracking and failure.

1.2360 MOD steel for Thread Rolling Die

High attainable hardness and outstanding fatigue resistance ensure DC53 thread rolling dies maintain profile accuracy and consistent thread quality under cyclic loading.

Our Production Technology For DC53 (D2 Mod / SKD11 Mod / Cr8Mo2SiV) Cold Work Tool Steel

Ultrasonic testing (UT) 100% as per SEP 1921, ASTM A388, or EN 10228-3 (upon request)
Micro Cleanliness as per ASTM E45 or DIN 50602
Spheroidized microstructure as per relevant tool steel standards
Delivery condition: Soft annealed, hardness ≤ 255 HB (≈ 22–26 HRC)

mechanical properties & heat treatment of DIN 1.2360 MOD steel

Heat temperature	Start forging temperature	Finish forging temperature	Cooling method
1100 – 1150 °C	1100 – 1050 °C	≥ 900 °C	Pit, sand, or furnace cooling

Annealing

Heat uniformly to 830 – 850°C (1525 – 1562°F)
Hold at temperature for 2 – 4 hours (time depends on section thickness and workpiece size)
Cool slowly in the furnace at a controlled rate (max. 10 – 20°C/h) down to approximately 600°C
Then air cool to room temperature
Hardness after annealing: max. 225 – 255 HB

Hardening

Preheating (recommended for vacuum/air quenching):
First stage: 500 – 550°C — hold for 30 minutes per 25mm of section thickness.
Second stage: 800 – 850°C — hold for 30 minutes per 25mm of section thickness
Austenitizing temperature :
1000 – 1040°.
Holding time: After temperature equalization, hold for 30 minutes per 25mm of section thickness (or 20–30 minutes minimum)
Quenching media:
Air (still air for smaller sections; pressurized gas quench in vacuum furnace for larger sections) — the preferred method for DC53.
Oil (40–70°C) — for larger sections when faster cooling is required, or for achieving maximum hardness.
Vacuum furnace with high-pressure gas quench — ideal for distortion control and surface quality.
For complex shapes, a stepped quench or air cooling is recommended to minimize distortion
Hardness after quenching:
From 1000–1040°C air/oil quench: approx. 60 – 62 HRC.
With optimized quenching, hardness can reach up to 63 HRC without significant loss of toughness.
For cryogenic treatment options, hardness can increase by 1–2 HRC while further reducing retained austenite content

Stress relieving

Hardness after annealing: max. 225 – 255 HB
Heat carefully to approx. 650°C (1202°F)
Hold at temperature for 1 – 2 hours
Furnace cool slowly to approximately 500°C, then air cool
This operation is performed to reduce distortion during hardening
For large or complex shapes, a preheating step at 400–500°C before full annealing is also acceptable to further minimize thermal shock risks

Tempering

Temper immediately after the workpiece cools to hand-warm temperature (approx. 50–70°C). Avoid delaying tempering for more than 2–4 hours after quenching to prevent cracking
Number of tempers: Minimum 2 times. Double tempering is mandatory for DC53 in all tempering ranges to ensure complete austenite decomposition and property stability
Holding time: Soak for 1 hour per 20mm of section thickness (minimum 2 hours per cycle)
Cooling method: Air cool after each tempering cycle (must cool to room temperature before next cycle)

Why Choose NSPM as Your DIN 1.2360 MOD 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.