Tool and Die Steel D2 Bars

Al Summan Metals, a first-rate manufacturer and supplier based in Dubai, UAE, is dedicated to producing high-quality Tool and Die Steel D2 Bars engineered to last. These bars are recognized for their remarkable wear resistance and durability, which makes them ideal for heavy-duty applications where performance matters most. Backed by a reputation for high hardness and precision, Al Summan Metals guarantees that each D2 Bar is manufactured using advanced techniques and strict quality control, ensuring they consistently meet international standards. Tool and Die Steel D2 Bars from Al Summan Metals deliver excellent dimensional stability and toughness, making them the preferred option for toolmakers and engineers operating in demanding industrial environments.

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D2 Tool Steel Round Bar

Die Steel D2 Rods

D2 Tool and Die Steel Bar

What is Tool and Die Steel D2 Bars?

When it comes to composition, Tool and Die Steel D2 Bars consist of carbon, chromium, molybdenum, and vanadium, all working in combination to provide exceptional hardness, wear resistance, and edge retention. The elevated chromium level improves corrosion resistance, whereas molybdenum and vanadium strengthen toughness and assist in preventing cracking. From a mechanical standpoint, D2 Bars demonstrate remarkable compressive strength, superb wear resistance, and reliable dimensional stability following heat treatment. Such attributes make D2 steel an excellent choice for precision tooling and durable industrial applications.

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Tool and Die Steel D2 Bars Specifications

Standard : ASTM A681, ASME SA681
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Form : Round
Diameter : 10 mm ~ 900 mm
Size : 0.08 mm to 25.00 mm
Diameter Range : 0.040 mm – 12 mm (0.0016” – 0.4724”)
Uses : Lathe Tools, Milling Cutter, Cutter Blades, Boring Tools, Twist drills, Milling Knives, Reamers, Taps, Metalcutting saws, Screw Cutting Tools, File Cutter’s Chissels, Drills, Hobs, Drill Bits, Tread cutting tools and more

Chemical Compositions of Tool and Die Steel D2 Bars

ASTM A681	C		Mn		P	S	Si		Cr		V		Mo
D2	1.4	1.6	0.1	0.6	0.03	0.03	0.1	0.6	11	13	0.5	1.1	0.7	1.2
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		Mo
1.2379/X153CrMo12	1.45	1.6	0.2	0.6	0.03	0.03	0.15	1.6	11	13	0.7	1	0.7	1
JIS G4404	C		Mn		P	S	Si		Cr		V		Mo
SKD11	1.4	1.6		0.6	0.03	0.03		0.4	11	13	0.2	0.5	0.8	1.2

Mechanical Properties of Tool and Die Steel D2 Bars

Mechanical Properties	Metric	Imperial
Hardness, Knoop (converted from Rockwell C hardness)	769	769
Hardness, Rockwell C	62	62
Hardness, Vickers	748	748
Izod impact unnotched	77.0 J	56.8 ft-lb
Poisson’s ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

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Equivalent Grades of Tool and Die Steel D2 Bars

Country	USA	German	Japan
Standard	ASTM A681	DIN EN ISO 4957	JIS G4404
Grades	D2	1.2379/X153CrMo12	SKD11

Thermal Properties of Tool and Die Steel D2 Bars

Properties		Conditions
Properties		T (°C)	Treatment
Thermal expansion	10.4 x 10^-6/ºC	20-100	–

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Tool and Die Steel D2 Bars Types

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Frequently Asked Questions (FAQ)

Can Tool and Die Steel D2 Bars Be Welded?

Tool and Die Steel D2 Bars are weldable, though the process is difficult because of their high carbon content. Preheating, post-weld heat treatment, and the use of particular filler materials are necessary.

Is Tool And Die Steel D2 Bars Corrosion-resistant?

Tool and Die Steel D2 Bars are partially resistant to corrosion thanks to their elevated chromium content (12%). Although they aren't completely stainless, they provide reasonable protection against rust in milder environments.

How Should Tool and Die Steel D2 Bars Be Stored?

Tool and Die Steel D2 Bars ought to be kept in a dry, well-ventilated space to avoid contact with moisture. Apply protective coatings such as oil or rust inhibitors to reduce the chance of corrosion.

Tool and Die Steel D2 Bars Uses

You’ll find that Tool and Die Steel D2 Bars are extensively used in producing dies, punches, shear blades, forming tools, and cutting instruments where strong wear resistance is essential. They enjoy special popularity in cold work uses such as stamping, blanking, and forming operations. Sectors like automotive, aerospace, and general engineering rely on D2 Bars to build high-precision, long-lasting tools that retain their sharpness and structural integrity even after repeated use. Thanks to their combination of toughness, hardness, and dimensional stability, these bars deliver dependable performance and an extended service life in tough production environments.

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