CR7V-L Die Steel Blocks
CR7V-L tool steel delivers excellent high-temperature wear resistance, strong thermal fatigue resistance and good machinability. Ideal for hot forging, extrusion and heavy-duty cold blanking & shearing tools.
- Standard: Cr7V-L Kind&Co
- Technique: Forged
- Shape: Block
- Heat treatment: Annealed / Q+T
- Surface Treatment: Black, Machined
- Tolerance: +/- 1%
- MOQ: 1
We supply CR7V-L in various custom sizes
block size range
- Thickness: ≤700 mm
- Width: ≤1200 mm
Chemical Composition (%)
Grade | C | Si | Mn | Cr | Mo | V |
CR7V-L | 0.42 | 0.50 | 0.40 | 6.5 | 1.3 | 0.8 |
Main characteristics of CR7V-L tool steel
- Excellent wear resistance - longer tool service life
- Superior impact toughness - resists chipping and cracking
- Great dimensional stability - minimal heat treatment distortion
- High compressive strength - withstands heavy cold working loads
CR7V-L tool steel applications
CR7V-L steel For hot work:
M Drop forge die and die inserts for forging presses in steel processino, especially with serious wear problems M hot forming tools (press hardening) of structural automobile parts M extrusion die for steel processing M hot pressing die for the processing of copper and copper alloys M hot sharing blades and flash trimmers M push bench rollers for the production of seamless steel piping M production tools for seamless steel cylinders (e.g. drawing rollers)
CR7V-L steel For cold work:
M rollers,e.g. Former rolls used for steel rim processing M punches and shearing blades for sheet thicknesses of approx. 6-12 mm
Our production technology for CR7V-L KIND&CO Die Steel
- Melting
- Forging
- Hardening & Annealing
- Finishing
- Stock & Sawing
- Machining
- Vacuum Hardening
- UT 100% SEP1921 Class 3 D/d or E/e
- Spheroidized microstructure as per standard NADCA207-2003 AS1-AS9
- Macrostructure, microstructure, grain size, and impact toughness shall meet the standards specified in GB/T 1299-2025 for Tool and Die Steels.
mechanical properties & heat treatment of CR7V-L steel
| Heat temperature | Start forging temperature | Finish forging temperature | Cooling method |
| 1120-1150 °c | 1050-1100 °c | 900-850 °c | Pit or sand cooling |
Annealing
- Temperature:820-840°C with slow cooling in furnace
- Hardness after annealing :Max. 240HB.
Hardening
- Temperature:Temperature:1030-1040°C interrupt oil or polymer cooling at 250-300C),or vacuum harden
- Hardness: appr.57 HRC.
Stress relieving
- Temperature: appr.650 °C 2-4hrs with slow cooling
Tempering
- 500-700°C,as needed, see Tempering Diagram; temper to increase toughness 2 or 3 times.
- Nitriding: possible.
- Preheating before use: 250-350°C absolutely necessary
Why Choose NSPM as Your CR7V-L Tool Steel Supplier
Source Direct
Direct mill cooperation ensures stable supply, competitive pricing, and consistent quality. Global resource integration and strong supply chain management guarantee reliable material sourcing and long-term availability.
Stock Ready
50,000+ tons inventory across 11 warehouses enables fast delivery. Flexible cutting, short lead times, and ready stock support urgent demands and improve customers’ production efficiency.
Expert Team
600+ professionals, including R&D specialists and technical engineers, provide application-driven support. Fast response and deep tooling knowledge ensure accurate solutions for diverse industrial needs.
Fully Inspected
Strict quality control system with full traceability, UT testing, and heat treatment records. Certified standards (ISO, CE) ensure every material meets high-performance and reliability requirements.
Full-Chain Machining
From steel supply to precision machining, heat treatment, and equipment manufacturing, NSPM offers integrated solutions that enhance accuracy, efficiency, and overall tooling performance.
