Tool and Die Steel D2 Bars

Aung Metals, a top-notch manufacturer and supplier located in Naypyidaw, Myanmar, is all about crafting high-quality Tool and Die Steel D2 Bars that are built to last. These bars are known for their impressive wear resistance and durability, making them perfect for heavy-duty applications where performance is key. With a reputation for high hardness and precision, Aung Metals ensures that every D2 Bar is produced using cutting-edge techniques and rigorous quality control, so they meet international standards without fail. Tool and Die Steel D2 Bars from Aung Metals offer fantastic dimensional stability and toughness, making them the go-to choice for toolmakers and engineers working in tough industrial settings.

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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 are made up of carbon, chromium, molybdenum, and vanadium, which work together to deliver outstanding hardness, wear resistance, and edge retention. The high chromium content boosts corrosion resistance, while molybdenum and vanadium enhance toughness and help prevent cracking. Mechanically, D2 Bars showcase impressive compressive strength, excellent wear resistance, and solid dimensional stability after heat treatment. These qualities make D2 steel a fantastic option for precision tooling and long-lasting 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”)
Application : 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 etc

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 can be welded, but it's challenging due to their high carbon content. Preheating, post-weld heat treatment, and using specific filler materials are essential.

Is Tool And Die Steel D2 Bars Corrosion-resistant?

Tool and Die Steel D2 Bars are semi-corrosion-resistant due to high chromium content (12%). While not fully stainless, they offer moderate resistance to rust in less aggressive environments.

How Should Tool and Die Steel D2 Bars Be Stored?

Tool and Die Steel D2 Bars should be stored in a dry, ventilated area to prevent moisture exposure. Use protective coatings like oil or rust inhibitors to minimize corrosion risk.

Tool and Die Steel D2 Bars Uses

You’ll find Tool and Die Steel D2 Bars being widely used in the manufacturing of dies, punches, shear blades, forming tools, and cutting instruments where high wear resistance is a must. They’re particularly popular in cold work applications like stamping, blanking, and forming operations. Industries such as automotive, aerospace, and general engineering depend on D2 Bars to create high-precision, durable tools that keep their sharpness and structural integrity even after repeated use. With their blend of toughness, hardness, and dimensional stability, these bars ensure reliable performance and a long service life in demanding production environments.

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