SAE O7 Cold Work Steel - OTAI Steel | AISI O7 Tool Steel
Products Description SAE O7 cold work steel - OTAI Steel | AISI O7 tool steel SAE O7 cold work steel, offered by OTAI Steel and known as AISI O7 tool steel, is a remarkable material that plays a crucial role in various industrial applications. This steel is highly regarded for its exceptional...
Description
Products Description
SAE O7 cold work steel, offered by OTAI Steel and known as AISI O7 tool steel, is a remarkable material that plays a crucial role in various industrial applications. This steel is highly regarded for its exceptional properties and performance.
The SAE O7 cold work steel is characterized by its high hardness and excellent wear resistance. It can withstand the rigors of demanding manufacturing processes and is often used in the production of tools and dies that require durability and precision. The steel's hardness is achieved through a carefully controlled heat treatment process, which results in a fine microstructure that provides strength and stability.
Chemical composition
| C(％) | 1.10～1.30 | Si(％) | 0.10～0.60 | Mn(％) | 0.20～1.00 | P,S(％) | ≤0.030 |
| W(％) | 1.00～2.00 | Cr(％) | 0.35～0.85 | Mo (％) | ≤0.30 | V(％) | 0.15～0.40 |
Heat treatment Related
Annealing of O7 Tool steel
Slowly heated to 720-760 ℃(1328-1400℃) and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The O7 tool steel will get MAX 250 HB (Brinell hardness).
Hardening of tool steel O7
O7 steels should be heated uniformly to 790-820°C (1454-1508°F) until completely heated through. If needed, the steels can be preheated at 300-500°C (572-932°F). About 30 min/per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil.
AISI O7 tool steel is widely recognized for its versatility and can be used in a variety of applications, including stamping dies, blanking dies, and forming tools. It is also suitable for use in the production of cutting tools, such as punches and dies for sheet metal working.
The steel's machinability is also an important consideration. SAE O7 cold work steel can be machined using conventional machining methods, although it may require special tooling and techniques due to its hardness. However, with proper machining practices, it is possible to achieve precise and accurate results.
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