Tool & Alloy Steel Bars
Die, Mould & Bearing Grade Bar

Tool & Alloy Steel Bars

D2, H13, O1 & EN31 tool and bearing steel bars for die making, hot-work tooling and precision bearing components.

Tool & Alloy Steel Bars
ASTM / ASME Certified Material

Product Overview

Our tool and alloy steel bar range serves die makers, mould manufacturers and bearing component producers with grades selected for wear resistance, toughness or dimensional stability depending on the tooling application.

D2 and O1 cover cold-work die and gauge applications, H13 serves hot-work forging and die-casting dies, and EN31 (52100-equivalent) is the standard for precision bearing races and rollers.

Diameter6mm – 250mm
LengthUp to 3m
FinishAnnealed, Ground, Peeled
CertificationEN 10204 3.1 Mill Test Cert.
Specification

Available Grades

GradeStandardTypical Service
D2 (AISI D2)ASTM A681High-carbon, high-chromium cold-work die steel
H13 (AISI H13)ASTM A681Chromium hot-work steel for forging & die-casting dies
O1 (AISI O1)ASTM A681Oil-hardening cold-work steel for gauges & punches
EN31 (AISI 52100 equiv.)IS 1570Bearing-grade steel for races & rollers
Technical Data

Specifications

  • Diameter6mm – 250mm
  • Length1m – 3m
  • ManufactureHot Rolled, Forged, Ground
  • ConditionSoft Annealed
  • TestingHardness, Dimensional, UT on request
  • CertificationEN 10204 3.1 Mill Test Cert.
  • PackingBundled, tagged by heat number
  • GradesD2, H13, O1, EN31

Technical Note — Bar is supplied soft-annealed with a documented hardness band suited to machining before heat treatment; on request we can pre-select stock closest to your target grain-flow orientation for large die blocks.

Where It's Used

Applications

Die & Mould Making

Bearing Components

Press Tooling

Forging Dies

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