Mold Steel (Maraging) material at YiguProto
Mold Steel (Maraging) machined or molded by YiguProto

Material

Mold Steel — 3D Printing Materials

Mold steel is a hard tool steel. We 3D print it into strong, conformal-cooled injection molds and tooling.

Overview

What Is Mold Steel 3D Printing?

Mold steel is a hard tool steel. We 3D print it into strong, conformal-cooled injection molds and tooling.

Material: Mold Steel

Mold steel is a hard tool steel used for molds and dies. 3D printing lets us build complex cooling channels inside the tool.

Process: 3D Printing (Additive)

We build parts layer by layer from your digital file, with no tooling needed.

Result: Complex Parts, Fast

Shapes that are hard or impossible to machine or mold, ready in days.

Specifications

Mold Steel Engineering Data

Typical reference values for Mold Steel through 3D printing. Final numbers can vary with grade and part shape.

PropertyTypical Value
Material typeTool steel (3D printed)
Manufacturing process3D Printing (SLM/DMLS)
Density7.8 g/cm³
Hardness48–55 HRC (after heat treat)
Service temperatureup to 300 °C
Standard finishesHeat treat, polishing, coating

Values are typical reference data and may vary with grade, heat treatment, and part geometry. Tell us your needs and we will confirm exact specs.

Why Mold

Why Choose Mold Steel for 3D Printing

Conformal Cooling

Printed channels cool molds faster and more evenly.

Hard & Wear Resistant

Tool steel stays hard and lasts long.

Complex Shapes

Make internal features impossible to machine.

Faster Cycle Time

Better cooling shortens molding cycles.

Material Options

Mold Steel Grades & Options

We stock common grades. Tell us your need and we will pick the right one.

MS1 / 1.2709

Common maraging steel for molds.

H13

Hot-work tool steel for dies.

420 Stainless

Corrosion-resistant mold steel.

How It Works

How We Make Your Mold Steel Part

From your file to a finished part in five clear steps. Start with a free quote.

Send Files & Get a Quote

Upload your STEP or STL file. Get a quote with free DFM feedback, usually within 24 hours.

Design Review (DFM)

Our engineers check wall thickness, overhangs, and supports. We suggest changes that cut cost and improve quality.

3D Printing

We print your part layer by layer with metal (SLM/DMLS) or plastic (SLS/MJF) technology.

Post-Processing

We remove supports, then heat-treat, surface-finish, or color the part as needed.

Inspect & Ship

We measure and inspect each part, then pack and ship worldwide with full tracking.

Applications

Where Mold Steel Is Used

Injection Mold Cores

Conformal-cooled cores and cavities.

Die Casting Tools

Durable dies for metal casting.

Jigs & Fixtures

Strong, custom production aids.

Wear Parts

Bushings and inserts that last.

Design Tips

Easy Design Tips for Beginners

New to this process? These simple rules help your part turn out well and cost less.

Mind Wall Thickness

Keep walls thick enough to print and stay strong. Very thin walls may fail or warp.

Plan for Supports

Overhangs and bridges need supports. Design to reduce them and cut cost.

Allow for Accuracy

Tight tolerances cost more. Only specify them where the function needs them.

Finishes

Surface Finishes for Mold Steel Parts

As Printed

The natural layered surface. Fastest and lowest cost.

Bead Blasting

A uniform matte finish that softens layer lines.

Polishing

A smoother, brighter surface for looks or function.

Anodizing / Dyeing

Color or coating for metal or nylon parts.

Why YiguProto

A Trusted Manufacturing Partner

We are a dedicated factory for 3D printing. Every file is reviewed by engineers before production. Every part is inspected before shipping. Your designs stay private with us.

< 24h
Quote turnaround
No MOQ
One part or thousands
±0.005 mm
CNC tolerance
Free
DFM design review

FAQ

Mold Steel — Frequently Asked Questions

Mold steel is a hard tool steel used for molds and dies. 3D printing lets us build complex cooling channels inside the tool.
3D printing, also called additive manufacturing, builds a part layer by layer from a digital file. It needs no tooling and makes complex shapes in days.
Mold steel is a hard tool steel. 3D printing builds conformal cooling channels that speed up molding and extend tool life.
3D printed mold steel reaches 48–55 HRC after heat treatment. It is hard, wear-resistant, and built to last.
Send us your files. Most quotes return within a few hours on workdays. We never take more than 24 hours.
There is no strict minimum. We make a single prototype or a full production run.
Yes. We treat all files and ideas as confidential. We sign NDAs when you need them.
Yes. Our engineers review your design and suggest changes that cut cost, improve quality, or speed up delivery.
Heat treatment, polishing, coating, and texturing.
Yes — 3D printed parts hold typical ±0.1–0.3 mm, and we can machine key features tighter.
Yes. We can make samples for your approval. The sample cost is credited back on a production order.

Ready to Make Your Mold Steel Part?

Send your 3D file and get a factory-direct quote with free DFM feedback within 24 hours.

Get a Quote Or email sales@yiguproto.com