Precision steel injection mold tooling in a toolroom

Tooling material decisions

P20 vs NAK80 vs hardened
injection mold steel.

Compare P20, NAK80 and hardened steel around tool life, polish, wear, corrosion, resin abrasiveness, maintenance and project cost.

InjeForm

For OEM and product teams across Europe, North America & the Middle East

A practical sourcing route

Make the next
decision clearer.

Steel selection should follow the expected resin, tool life, surface finish, corrosion exposure, maintenance route and production plan. A material label alone does not define whether a mold is suitable for a program.

Buyer-led scopeEngineering evidenceControlled handover

Project fit

Where this route
helps most.

Start with the questions that affect tooling, quality, timing and total program risk.

01

Buyers comparing tooling quotations with different steel assumptions

02

Abrasive, cosmetic or high-volume molding programs

03

Teams specifying tool life and future maintenance expectations

What buyers can align

Evidence that supports
the next gate.

Scope the work around decisions and records—not broad promises.

01

Steel and tool-life assumption review

Defined with the part, tool, material, volume and acceptance requirements in scope.

02

Resin abrasiveness and corrosion discussion

Defined with the part, tool, material, volume and acceptance requirements in scope.

03

Polish, texture and dimensional-stability questions

Defined with the part, tool, material, volume and acceptance requirements in scope.

04

Maintenance, repair and handover considerations

Defined with the part, tool, material, volume and acceptance requirements in scope.

Decision framework

Compare the
trade-offs.

DecisionTrade-offBuyer should confirm
P20Cost and machinability vs. wear lifeResin, shot target and maintenance plan
NAK80Polish and pre-hardened performanceCosmetic requirement and supplier grade
Hardened steelHigher wear resistance vs. machining costAbrasive resin, volume and service life

How the conversation moves

From brief to
controlled next step.

Use the first conversation to identify what is known, what is open and what evidence should come next.

  1. 01

    Define resin, volume, finish, corrosion and tool-life requirements.

  2. 02

    Ask suppliers to state the actual steel grade and treatment.

  3. 03

    Compare tool-life, machining, maintenance and modification assumptions.

  4. 04

    Record the approved steel basis in the tooling scope.

Buyer questions

Clear answers before
you commit.

Is NAK80 always better than P20?+

Not always. The right choice depends on polish, texture, resin, expected shots, corrosion exposure, machining and budget. The exact grade and use case should drive the decision.

When is hardened steel worth considering?+

It may be appropriate for high volume, abrasive or wear-sensitive programs where longer service life justifies higher machining and tooling cost.

Should steel grade appear in the mold quotation?+

Yes. The quotation should state cavity, core and wear-component steel assumptions, treatment where relevant, expected tool life and what changes if the material is substituted.

Start a technical conversation

Bring us your
next part.

Share the drawing, resin, target volume, market and timing. We will return with focused questions and a practical next step.

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