AISI A8 Air-Hardening Cold Work Tool Steel
AISI A8 is a medium-carbon, high Cr-Mo-W-Si air-hardening cold work tool steel developed for a balanced combination of toughness, wear resistance and dimensional stability.
Typical Specifications
| Grade | AISI A8 |
|---|---|
| Product | Round bar, plate, flat bar, block and machined blanks |
| Condition | Annealed supply with air-hardening heat treatment support |
| Standard | AISI A8 / UNS T30108 |
| Density | 7.85 g/cm³ |
Key Features
- Air-hardening stability
- Tough cold work balance
- Cr-Mo-W-Si alloy design
- Production tooling support
Typical Applications
WhatsApp / Email / RFQ
Please send grade, dimensions, quantity and destination country or port. Our sales team will check stock availability, cutting service, weight and delivery time.
Supply Information
Equivalent Grades
Equivalent standards help buyers find the same material by international grade names.
| AISI / SAE | A8 |
|---|---|
| UNS | T30108 |
| Equivalent review | Confirm by specification and end use |
Key Properties
Properties are purchasing-oriented and should be confirmed against the required delivery condition.
- Air-hardening cold work tool steel for stable heat-treatment response.
- Balanced toughness and wear resistance for forming and shearing applications.
- Good dimensional stability compared with many oil-hardening cold work grades.
- Cr-Mo-W-Si alloy content supports hardenability and service strength.
Typical Chemical Composition
Composition values are shown as common reference ranges for quotation and grade confirmation.
| Element | Content |
|---|---|
| C | 0.50-0.60 |
| Si | 0.75-1.10 |
| Mn | ≤0.50 |
| P | ≤0.030 |
| S | ≤0.030 |
| Cr | 4.75-5.50 |
| Mo | 1.15-1.65 |
| W | 1.00-1.50 |
Typical Applications
- Punches
- Forming dies
- Shears
- Cold forging tools
- Trimming dies
- Industrial knives
- Blanking tools
- Forming rolls
- Wear plates
- High-toughness cold work tooling
Available Service
- Cut-to-size sawing
- CNC machining
- Rough milling
- Precision grinding allowance
- Annealed bar and plate supply
- Heat treatment coordination
- Inspection documentation
- Export packing
Estimate Weight Before Inquiry
Use 7.85 g/cm³ as a quotation reference density for AISI A8.
Calculation is for quotation reference only. Actual weight may vary by tolerance, cutting allowance and surface condition.
Send Steel Inquiry
Include grade, dimensions, quantity, destination country or port, required standard and surface condition.