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Lonestar Trading US
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Lonestar Trading US
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India → US — Tool & Die Steel

Tool & Die Steel
Heat-Treated. Certified.
Ready to Perform.

D3, D2, H13, M2, S7, and equivalent grades from India — supplied as fully processed bars, blocks, or pre-machined forms where heat treatment, cleanliness, and property consistency matter.

D3D2M2H13S7A2O1P20
Browse GradesSee the Process
Tool steel bars — processed and inspected
What We Supply

Tool Steel Where Processing
Determines Performance

Not commodity steel with a grade label. Fully processed material where heat treatment, hardness uniformity, and dimensional stability are controlled and documented.

Product Forms
  • Flat bars & blocks — annealed, pre-hardened, or hardened-and-tempered
  • Round bars — forged or rolled, with controlled microstructure
  • Pre-machined forms — rough-machined to near-net shape
  • Custom sizes — non-standard dimensions on request
What Makes This Different
  • Heat treatment coordinated to your application, not left to default
  • Chemistry validated against actual melt, not just cert paper
  • Property consistency — hardness, toughness, wear resistance verified
  • Documentation aligned to your qualification and acceptance process
Available Grades

Select a Grade to View Details

We handle all common tool steel families. Click a grade for detailed specifications, properties, and applications.

D3 Tool Steel - Cold Work

D3

Cold work. High-carbon, high-chromium. Blanking and forming dies.

FlatsSquaresRounds
D2 KNL Tool Steel - Cold Work

D2 KNL

Cold work. Outstanding wear resistance and edge retention.

FlatsSquaresRounds
M2 High Speed Steel

M2

High-speed steel. Balanced wear resistance and red hardness.

FlatsSquaresRounds
H13 Hot Work Tool Steel

H13

Hot work. Thermal fatigue resistance for die casting and forging.

Rounds
S7

S7

Shock-resisting. High impact toughness for chisels and punches.
A2

A2

Air-hardening cold work. Dimensional stability and toughness.
O1

O1

Oil-hardening cold work. Versatile, machinable, good edge retention.
P20

P20

Mold steel. Pre-hardened for large plastic injection molds.
Available Shapes

Bars, Rounds, and Flats — Standard and Custom

All grades available in multiple forms to suit your application and machining requirements.

Precision steel round bars
Rounds

Precision-engineered steel rounds. Multiple diameters for shafts, punches, dies, and machining applications.

Steel flat bars
Flats

Flat steel bars with outstanding dimensional accuracy. Ideal for tools, dies, blades, and structural parts.

Steel square bars
Squares

Strong, versatile square bars. Excellent hardness and uniformity for cutting tools and fabrication.

Grades We Handle

Major Tool Steel Families

Selection is driven by your application, not our inventory.

Cold Work

D3, D2 — High-carbon, high-chromium. Wear resistance and edge retention for blanking, forming, and shearing dies.

A2, O1 — Air and oil-hardening alternatives for different toughness-wear tradeoffs.

Hot Work

H13 — The standard for die casting, forging dies, and extrusion tooling. Thermal fatigue resistance and hot hardness.

High Speed & Mold

M2 — General-purpose high-speed steel for cutting tools. Red hardness and wear resistance.

S7, P20 — Shock-resistant and pre-hardened mold steel for injection molding and impact applications.

Our Process

How a Tool Steel Order Works

Every order follows the same sequenced approach.

Step 1

Application & Spec Review

Understand your application, critical properties, tolerances, and acceptance criteria.

Step 2

Source & Route Selection

Match the right mill, processing route, and heat-treatment logic to your requirements.

Step 3

Manufacturing Coordination

Align melting, forging, heat treatment, and testing. We maintain accountability across steps.

Step 4

Quality & Documentation

Hardness, microstructure, and property tests aligned to your application. Documentation reviewed before shipment.

Step 5

Delivery & Acceptance Support

Material arrives documented and ready for your qualification process.

Start Here

Need Tool Steel That Actually
Meets Your Application?

Tell us the grade, the application, and the properties that matter. We’ll tell you if we can deliver.

Discuss a Tool Steel GradeEmail Us Directly