Do you want to test your design with this material? Hurry up and upload your part for inquiry
Request Quotes
Tool steel A3
Material type: Metal, Magnetic
Tool Steel A3 is a high quality Cold work tool steel, It belong to the high quality high carbon alloy tool steel. Oil Quenched & Tempered Hardenss is 28-34 HRc. AISI A3 steel Annealing delivery hardenss less than 250HB.A3 steel equivalent with ASTM A681, FED QQ-T-570, UNS T30103.
Process compatibility
Material Color
Silver gray
Material advantages
It is high quality cold work steel that can be oil quanched and tempered.
Material shortcomings
Poor weldability and poor corrosion resistance.
Recommended description
-
Properties
| Name | |
|---|---|
| Tensile strength | 2380MPa |
| Yield strength | 2100MPa |
| Density | 7.86g/cc |
| Hardness | 255HB |
| Elongation at Break | 1% |
| Modulus of elasticity | 203GPa |
| Thermal expansion coefficent | 11.8 - 14.3 10^-6 ºC |
| Thermal conductivity | 37 W/(m⋅°C) |
Common applications
• Punches
• Dies
• Chuck jaws
• Cutting tools for woodworking
• Tooling for plastic injection
• Dowel pins
• Hammers
• Industrial knives
• Gage
Customer reviews
cnc-machining resources for engineers
Article
How CNC Machining Costs Are Calculated: A Complete Cost Breakdown
By
saman
Oct 01,2026
Article
Nut Height and Threaded Hole Depth from the Perspective of Thread Load Distribution
By
saman
Sep 29,2026
Article
What You Don’t Know About Implicit Tolerances
By
saman
Mar 21,2026
Article
Why Does Stainless Steel Still Rust?
By
saman
Dec 30,2025
