M7 High Speed Steel
M7 High Speed Steel
M7 high-speed steel is a high-performance tool steel known for its exceptional wear resistance, high hardness, and excellent toughness. It contains a significant amount of tungsten and molybdenum, providing superior heat resistance and maintaining hardness even at elevated temperatures. M7 steel is commonly used in the manufacturing of cutting tools such as drills, end mills, and reamers, particularly for high-speed and heavy-duty machining applications. Its balanced composition ensures good machinability while offering durability and long tool life, making it ideal for demanding industries such as automotive, aerospace, and precision machining.
|
Chemical composition |
Value |
|
C |
0.97% – 1.05% |
|
Si |
0.20% – 0.45% |
|
Mn |
0.15% – 0.40% |
|
S |
≤0.030% |
|
P |
≤0.030% |
|
Cr |
3.50% – 4.00% |
|
Mo |
8.20% – 9.20% |
|
V |
1.75% – 2.25% |
|
W |
1.40% – 2.10% |
Another dimension according to your requirements Surface condition:
— Black, annealed Rough Machined, Turned, or as per given requirements.
Mechanical properties：
-Hardness: The hardness of the annealing is 255HBW, and the cold stamping hardness is 269hbw. After quenching and recovery, the hardness can reach 62-63HRC.
-Tensile strength: ≥1170MPa.
-Symbol strength: ≥434MPa.
-Extension rate: about 32%.
-Section contraction rate: about 33%.
-Impact toughness: It has high impact toughness and can withstand the impact and vibration in the cutting process
Application
1.Cutting tools: suitable for manufacturing drills, milling cutters, turning tools, taps, saw blades, etc.
2.Mold manufacturing: suitable for manufacturing cold stamping dies, cold heading dies, fine stamping dies, powder pressing dies, deep drawing dies, punching dies, etc.
3.Mechanical parts: suitable for manufacturing mechanical parts that require high wear resistance or toughness.
Customer Testimonials
Outstanding Performance in Heavy-Duty Applications
“We’ve been using M7 high-speed steel for our precision cutting tools, and the results have been impressive. The material holds its hardness even in high-temperature environments, making it ideal for heavy-duty machining. We’ve seen a noticeable increase in tool life and productivity. Highly recommended for anyone in need of durable, high-performance cutting tools!”
Excellent Wear Resistance and Toughness
“M7 steel has exceeded our expectations in terms of wear resistance and toughness. We’ve been using it for drilling and milling applications, and it consistently performs well, even under demanding conditions. It provides an excellent balance of hardness and toughness, allowing us to tackle difficult materials without sacrificing tool integrity. Very satisfied with this steel grade.”
Reliable and Cost-Effective Solution
“We switched to M7 high-speed steel for our tool production and have noticed a significant improvement in both performance and cost-efficiency. The steel’s heat resistance and sharpness retention have made a real difference in reducing tool wear. M7 has proven to be a reliable solution for our manufacturing process, and we’ve seen reduced maintenance costs as a result.”
