O6 Tool Steel Round Bar: O6 is an oil-hardening, graphitic cold-work tool steel. Its free graphite can aid machinability while heat treatment controls working hardness and dimensional behavior.
Download Mozaic O6 Tool Steel Round Bar specification reference (PDF)
O6 Tool Steel Round Bar — Technical and Purchasing Reference
| Item | Guidance |
|---|---|
| Material / product designation | O6 Tool Steel Round Bar |
| Relevant purchasing specification | ASTM A681, grade O6 |
| Material / delivery condition | Specify annealed stock for machining or the ordered hardening/tempering condition |
| Common machining or wear uses | Dies, forming tools, punches and specialty wear tooling |
| Service/selection consideration | O6 should not be substituted for O1 solely because both are oil-hardening grades. |
| 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
O6 should not be substituted for O1 solely because both are oil-hardening grades. Common uses include dies, forming tools, punches and specialty wear tooling. 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
- o1 tool steel — evaluate grade differences before substitution
- a2 tool steel — evaluate grade differences before substitution
Frequently Asked Questions
Which material condition should I order?
Specify annealed stock for machining or the ordered hardening/tempering condition. 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?
O6 should not be substituted for O1 solely because both are oil-hardening grades. Obtain approval against the drawing and verify the ordered chemistry, mechanical properties, finishing response and documentation.
Request a Quote for O6 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.