Tool and Die Steel D2 Bars

Neith Metals is a well-known manufacturer and supplier located in Cairo, Egypt, focusing on top-notch Tool and Die Steel D2 Bars. These bars are celebrated for their remarkable hardness, wear resistance, and dimensional stability, making them perfect for tough cold-work tooling tasks. Neith Metals uses cutting-edge manufacturing methods and adheres to strict quality standards to guarantee that every D2 Bar performs consistently. With a solid reputation for reliability and precision, the company caters to industries that need durable, high-performance steels for cutting, forming, and shaping under heavy loads.

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D2 Tool Steel Round Bar

Die Steel D2 Rods

D2 Tool and Die Steel Bar

Table of Contents

What is Tool and Die Steel D2 Bars?

Tool and Die Steel D2 Bars primarily consist of carbon (1.40–1.60%), chromium (11.00–13.00%), molybdenum (0.70–1.20%), vanadium (0.10–0.30%), along with trace amounts of manganese and silicon. This high-carbon, high-chromium blend gives the bars excellent hardness, wear resistance, and compressive strength. After undergoing heat treatment, D2 steel usually reaches a hardness of 58–62 HRC while maintaining good dimensional stability. It also provides moderate toughness, making it a great choice for long-run tooling applications where abrasion resistance is essential.

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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 A681CMnPSSiCrVMo
D21.41.60.10.60.030.030.10.611130.51.10.71.2
DIN ISO 4957CMnPSSiCrVMo
1.2379/X153CrMo121.451.60.20.60.030.030.151.611130.710.71
JIS G4404CMnPSSiCrVMo
SKD111.41.6 0.60.030.03 0.411130.20.50.81.2

Mechanical Properties of Tool and Die Steel D2 Bars

Mechanical PropertiesMetricImperial
Hardness, Knoop (converted from Rockwell C hardness)769769
Hardness, Rockwell C6262
Hardness, Vickers748748
Izod impact unnotched77.0 J56.8 ft-lb
Poisson’s ratio0.27-0.300.27-0.30
Elastic modulus190-210 GPa27557-30457 ksi

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Why Neith Metals?

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Equivalent Grades of Tool and Die Steel D2 Bars

CountryUSAGermanJapan
StandardASTM A681DIN EN ISO 4957JIS G4404
GradesD21.2379/X153CrMo12SKD11

Thermal Properties of Tool and Die Steel D2 Bars

PropertiesConditions
T (°C)Treatment
Thermal expansion10.4 x 10-6/ºC20-100

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Tool and Die Steel D2 Bars Types

CrMo D2 Cold Drawn Bars
Chrome Molybdenum Steel D2 Bright Rods
D2 Hot Forged Round Bars
D2 Cold Rolled Die Steel Bar
D2 Hot Rolled Tool Steel Bar
Tool and Die Steel D2 Threaded Bar

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Frequently Asked Questions (FAQ)

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.

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.

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 Bars are commonly utilized in creating blanking and forming dies, punches, shear blades, and cutting tools. Their outstanding wear resistance makes them ideal for cold forming, stamping, and trimming tasks. Additionally, D2 bars find their place in gauges, industrial knives, and molds that require exceptional edge retention and surface finish. Thanks to their ability to stay sharp and resist deformation, they are favored in the automotive, aerospace, and heavy engineering sectors for precision tooling applications.

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