Tool and Die Steel D2 Bars

Rupal Metals stands out as a trusted manufacturer and supplier of Tool and Die Steel D2 Bars right in the heart of Delhi, India. They serve a diverse range of industrial clients, earning a solid reputation for their commitment to quality and precision machining. Their D2 steel bars are crafted to meet both national and international standards. Known for its high-carbon, high-chromium composition, Tool Steel D2 boasts exceptional wear resistance, impressive hardness, and stability during heat treatment. With a robust supply chain and the ability to customize specifications, Rupal Metals guarantees timely delivery and reliable performance, making their D2 bars a top choice for tooling and die-making industries.

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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?

Tool Steel D2 Bars are made up of about 1.5% Carbon, 11–13% Chromium, 0.3% Manganese, 0.3% Silicon, along with trace amounts of Vanadium and Molybdenum. This alloy is air-hardening and features a high content of carbon and chromium, which provides remarkable wear resistance and edge retention. After heat treatment, the typical hardness falls between 55 to 62 HRC. It also boasts a tensile strength of around 1900 MPa and high compressive strength, making it perfect for cold work applications. Even after extensive heat treatment and machining, this steel maintains its dimensional stability.

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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

D2 Tool Steel Bars find their place in a variety of tooling applications that demand superior wear resistance and edge retention. They are commonly used for blanking dies, forming dies, shear blades, punches, and industrial knives. Thanks to its high hardness and ability to keep a sharp cutting edge under pressure, it’s ideal for intricate dies and cutting tools. In the plastic mold sector, D2 bars are utilized for mold cavities and inserts. Their toughness and durability also make them perfect for cold forming tools, gauges, and wear-resistant components in various heavy-duty manufacturing settings.

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