D2 Tool Steel Round Bar: D2 is a high-carbon high-chromium air-hardening cold-work tool steel with wear resistance valued in cutting and forming equipment.
Download Mozaic D2 Tool Steel Round Bar specification reference (PDF)
D2 Tool Steel Round Bar — Technical and Purchasing Reference
| Item | Guidance |
|---|---|
| Material / product designation | D2 Tool Steel Round Bar |
| Relevant purchasing specification | ASTM A681 D2 |
| Material / delivery condition | Annealed or heat-treated hardness with grinding allowance |
| Common machining or wear uses | Blanking dies, cutters, gauges and wear plates |
| Service/selection consideration | D2 emphasizes wear resistance; impact-heavy tooling may call for S7 instead. |
| Mozaic bar-processing scope | Custom OD grinding, polishing, straightening, cutting and packaging by inquiry |
Reference information only, not a certified melt analysis, mechanical test report or inventory guarantee. Use the current governing material/product specification and lot-specific mill documentation to qualify any order.
Application Selection and Material Limitations
D2 emphasizes wear resistance; impact-heavy tooling may call for S7 instead. Common uses include blanking dies, cutters, gauges and wear plates. Suitability depends on grade chemistry, dimensions, strength and condition, the working environment and any surface or dimensional specifications. A related material should not be substituted solely because its marketing name sounds similar.
Centerless Grinding and Bar Finishing
Mozaic Precision Metals can review sourcing and centerless grinding, bar straightening, polishing, chamfering, cut-to-length and packaging for this product. Specify starting size, finished OD and diameter tolerance, length, surface roughness, straightness and inspection requirements separately. Actual capability depends on the material condition and geometry.
Related Grades and Product Alternatives
- s7 tool steel — evaluate grade differences before substitution
- a2 tool steel — evaluate grade differences before substitution
Frequently Asked Questions
Which material condition should I order?
Annealed or heat-treated hardness with grinding allowance. Include the applicable purchasing standard, section size, certifications and target properties; heat-treatment schedules and mechanical values cannot be assumed across all conditions.
Can I substitute a similar grade?
D2 emphasizes wear resistance; impact-heavy tooling may call for S7 instead. Obtain approval against the drawing and verify the ordered chemistry, mechanical properties, finishing response and documentation.
Request a Quote for D2 Tool Steel Round Bar
Send the grade, specifications, temper/condition, bar or tube dimensions, quantity and finish requirements to sales@mozaicprecision.com or call 847-637-8379. You can also request pricing online.