1. Home
  2. »
  3. Material
  4. »
  5. Tool steel O1 | 1.2510 | 100MnCrW4 – Annealed state
Material Name

Tool steel O1 | 1.2510 | 100MnCrW4 – Annealed state

Material Type
Metal

Process Compatibility

CNC machining
Property Value
Mechanical Properties
Ultimate tensile strength 640 – 720 MPa
Yield strength 400 MPa
Young’s modulus (modulus of elasticity) 190 GPa
Elongation at break 20 %
Physical Properties
Magnetism Magnetic
Weldability Poor
Thermal Properties
Maximum service temperature 165 – 215 °C
Thermal expansion coefficient 11.3 – 11.8 × 10-6/ºC
Thermal conductivity 41.2 – 44.6 W/(m⋅°C)
Electrical Properties
Electrical resistivity 24.5 – 30.2 μΩ*cm
Post Treatments
Post-Processing Hardening & Annealing
Anodizing compatibility Not suitable
Common Applications
Cutting tools Cold-forming dies
Shearing tools Die casting and molding dies

End-to-End Precision Manufacturing Solutions

CNC machining, injection molding, die casting, 3D printing, and sheet metal fabrication — from one-off prototypes to high-volume production, all under one roof.

Let’s Build What’s Next Together

Partner with Tuowei Precision to Shape Your Vision

From rapid prototypes to scalable production, Tuowei Precision delivers reliable CNC machining with accuracy and consistency at every step. Start your project today.

Get In Touch With Us!
Prompt response guaranteed within 12 hours
🔐 All uploads are secure and confidential

Expert Insights & Industry Trends

Discover the latest advancements in CNC machining and manufacturing. Our blogs provide expert insights, industry trends, and practical tips to enhance efficiency, precision, and innovation in your production processes.
Get In Touch With Us!
Prompt response guaranteed within 12 hours
🔐 All uploads are secure and confidential