Tool and Die Steel A2 Bars

Phehlukwayo Metal is a well-respected manufacturer and supplier of Tool and Die Steel A2 Bars, proudly based in Cape Town, South Africa. The company is committed to providing top-notch tool steels that adhere to global quality standards for strength, wear resistance, and dimensional stability. Their Tool and Die Steel A2 Bars are crafted using cutting-edge heat treatment and precision processing techniques, ensuring exceptional toughness and durability. Phehlukwayo Metal serves a variety of industries, including automotive, tooling, and manufacturing, supplying reliable materials for demanding applications. With a strong emphasis on quality and outstanding service, Phehlukwayo Metal has established itself as a trusted name in the metal industry.

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Die Steel A2 Rods

A2 Tool Steel Round Bar

A2 Tool and Die Steel Bar

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What is Tool and Die Steel A2 Bars?

Tool and Die Steel A2 Bars are air-hardening tool steels primarily made up of carbon (1.0%), chromium (5.0%), molybdenum (1.0%), and manganese (1.0%). This well-balanced composition delivers remarkable wear resistance, dimensional stability, and toughness. A2 steel showcases high compressive strength and uniform hardness throughout its sections after heat treatment, typically reaching Rockwell hardness values around 60 HRC. It offers good machinability in its annealed state and experiences minimal distortion during hardening, making it perfect for precision dies, punches, and forming tools that require consistent mechanical properties.

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Tool and Die Steel A2 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 A2 Bars

ASTM A681 C Mn P S Si Cr V Mo
A2/T30102 0.95 1.05 0.40 1.00 0.03 0.03 0.10 0.50 4.75 5.50 0.15 0.50 0.90 1.40
DIN ISO 4957 C Mn P S Si Cr V Mo
1.2363/X100CrMoV5 0.95 1.05 0.40 0.80 0.03 0.03 0.10 0.40 4.80 5.50 0.15 0.35 0.90 1.20
JIS G4404 C Mn P S Si Cr V Mo
SKD12 0.95 1.05 0.40 0.80 0.03 0.03 0.10 0.40 4.80 5.50 0.15 0.35 0.90 1.20
BS 4659 C Mn P S Si Cr V Mo
BA2 0.95 1.05 0.30 0.70 0.035 0.035 . . . 0.40 4.75 5.25 0.15 0.40 0.90 1.10

Mechanical Properties of Tool and Die Steel A2 Bars

Properties Metric Imperial
Hardness, Rockwell C (as air-hardened (63-65 HRC average), 60-62 HRC at 205°C, 59-61 HRC at 260°C, 58-60 HRC at 315°C, 57-59 HRC at 370°C and 425°C and 480°C, 56-58 HRC at 540°C, 50-52 HRC at 595°C, 42-44 HRC at 650°C) 64 64
Bulk modulus (typical for steels) 140 GPa 20300 ksi
Machinability (based on carbon tool steel) 65% 65%
Shear modulus 78.0 GPa 11300 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elastic modulus 190-210 GPa 27557-30457 ksi

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Why Phehlukwayo Metals?

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Equivalent Grades of Tool and Die Steel A2 Bars

CountryUSAGermanJapanBritish
StandardASTM A681DIN EN ISO 4957JIS G4404BS 4659
GradesA2/T301021.2363/X100CrMoV5SKD12BA2

Thermal Properties of Tool and Die Steel A2 Bars

Properties Conditions
T (°C) Treatment
Thermal expansion 10.7 x 10-6/ºC 20-100

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Tool and Die Steel A2 Bars Types

A2 Cold Rolled Die Steel Bar
Chrome Molybdenum Steel A2 Bright Rods
A2 Hot Forged Round Bars
CrMo A2 Cold Drawn Bars
A2 Hot Rolled Tool Steel Bar
Tool and Die Steel A2 Threaded Bar

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Frequently Asked Questions (FAQ)

The standard annealing temperature for A2 tool and die steel bars is typically between 800°C to 850°C (1472°F to 1562°F), followed by slow cooling to relieve internal stresses and soften the material.

A2 tool and die steel bars resist corrosion through their high chromium content, forming a protective oxide layer that enhances resistance to rust and wear, especially in cold-work applications.

Tool and die steel A2 bars should be stored in a dry, cool environment, away from moisture and corrosive elements. Ensure proper ventilation and avoid direct contact with the ground to prevent rust.

Tool and Die Steel A2 Bars Uses

Tool and Die Steel A2 Bars are extensively utilized in tooling applications that require high wear resistance and dimensional stability. They are commonly found in the production of blanking dies, forming dies, shear blades, punches, and trimming tools. The air-hardening characteristic of A2 steel minimizes the risk of cracking and distortion during heat treatment, making it ideal for tools that need close tolerances. Additionally, it is used in gauges, injection molds, and cutting tools that operate under moderate impact and abrasion conditions. Thanks to its versatility and performance, A2 steel is a popular choice across engineering, manufacturing, and precision toolmaking sectors.

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