Otai D3 steel material
D3. Material for blanking and forming dies, forming rolls, press tools and punches. Carbon composition: 2.00–2.35 %; Chromium composition: 11.0–13.5 %.
Specifications
| Attribute | Value | Conditions | Source |
|---|---|---|---|
| Carbon composition | 2.00–2.35 % | Supplier published chemical-composition percentage; exact D3 table, percentage basis not separately stated; not a batch assay or mill certificate | Otai D3 original grade composition and application page |
| Chromium composition | 11.0–13.5 % | Supplier published chemical-composition percentage; exact D3 table, percentage basis not separately stated; not a batch assay or mill certificate | Otai D3 original grade composition and application page |
| Manganese composition | 0.20–0.60 % | Supplier published chemical-composition percentage; exact D3 table, percentage basis not separately stated; not a batch assay or mill certificate | Otai D3 original grade composition and application page |
Sources and updates
Scope of this page: One named steel grade offering; AISI/DIN/JIS aliases, round/flat/plate stock, dimensions, surface finish and heat-treatment options are not extra products. Chemical composition is a supplier reference, not independently assayed or a guarantee of conformance to an unreviewed standard edition. No generic heat-treatment recipe, unconditioned hardness, service-temperature limit or safety approval adopted. The supplier is identified without claiming original trademark ownership or an endorsed distribution relationship. Source density7.85kg/cm3 is implausible and omitted without silent unit correction.
Otai D3 original grade composition and application page
Original publication · Otai
Source accessed: 27 October 2026
Content updated 27 October 2026. Source dates describe the documents or the recorded access to them.
How information is documented