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Industry Focus
Engineering & Precision Tooling
Tool steel verification. Case depth. Microstructure after heat treatment.
How QML Serves This Industry
Precision components and tooling demand the tightest material specifications — correct alloying, consistent case depth, verified hardness profile, and clean microstructure. QML supports engineering manufacturers with tool steel grade confirmation, heat treatment verification, and metallurgical assessment of dies, moulds, shafts, and precision-machined components.
Testing Scope for Engineering & Precision Tooling
Every testing requirement matched to what QML does and the applicable standard.
| Testing Requirement | What We Do | Standard |
|---|---|---|
| Tool steel grade confirmation | OES analysis — Cr, Mo, V, W, Co content against H13, D2, M2, P20, EN31 specifications | ASTM E415 / JIS 1253 |
| Hardness of dies, moulds & punches | Rockwell HRC across multiple points — uniformity and conformance to drawing | ASTM E18 / IS 1586 |
| Effective case depth (ECD) after carburising | Micro-Vickers HV0.3 traverse from surface inward to 550 HV limit | ASTM E384 / ISO 2639 |
| Total case depth (TCD) after nitriding | Micro-Vickers traverse to base hardness — total diffusion depth | ASTM E384 |
| Decarburisation of machined surfaces | Free-ferrite zone and total decarburised depth measurement | ASTM E1077 |
| Microstructure of heat-treated components | Tempered martensite, bainite, retained austenite identification at 200×–500× | Metallographic / ASTM E407 |
| Inclusion cleanliness of critical forgings | Inclusion rating per ASTM E45 — type and severity classification | ASTM E45 / ISO 4967 |
Materials Handled
H13 hot work die steel
D2 cold work die steel
M2 high-speed steel
P20 plastic mould steel
EN31 / 52100 bearing steel
EN24 / 4340 alloy steel shafts
Case-hardening steels (EN36, 20MnCr5, SCM415)
Need testing for Engineering & Precision Tooling?
Submit your enquiry and our team will confirm scope, turnaround, and pricing — usually within the same working day.