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O2 Tool Steel
O2 tool steel is suitable for manufacturing all kinds of precision measuring tools and templates. It is also used for stamping dies, cold pressing dies, engraving dies, blanking dies, etc. with relatively small size. It can also be used as structural parts such as screw rods of machine tools. It is used to manufacture all kinds of cold punching dies and tools with large section, complex shape and heavy working conditions, such as punching die, trimming die, edging die, deep drawing die of steel plate, circular saw, standard tools and gauges, thread rolling die, etc.
- fucheng steel
- China
- 1 month
- 2000 Tons/Month
- Information
- Video
O2 TOOL STEEL
Smelting and Manufacture Method: | LF+VD+Forged |
Delivery Condition: | Annealed |
Delivery hardness: | ≤212 HBS |
UT Test Standard: | Sep 1921-84 Class3 D/d,E/e |
O2 STEEL GRADE COMPARISON AND CHEMICAL COMPOSITION COMPARISON
Standard/Steel Grade | Chemical Composition(%) | ||||||
C | Si | Mn | Cr | Mo | V | ||
ASTM | O2 | 0.85~0.95 | ≤0.50 | 1.40~1.80 | ≤0.50 | ≤0.30 | ≤0.30 |
DIN/W-Nr. | 90MnCrV8/1.2842 | 0.85~0.95 | 0.10~0.40 | 1.80~2.20 | 0.20~0.50 | - | - |
GB | 9Mn2V | 0.85~0.95 | ≤0.40 | 1.70~2.00 | 0.40 | - | 0.10 |
APPLICATION
O2 tool steel is suitable for manufacturing all kinds of precision measuring tools and templates. It is also used for stamping dies, cold pressing dies, engraving dies, blanking dies, etc. with relatively small size. It can also be used as structural parts such as screw rods of machine tools. It is used to manufacture all kinds of cold punching dies and tools with large section, complex shape and heavy working conditions, such as punching die, trimming die, edging die, deep drawing die of steel plate, circular saw, standard tools and gauges, thread rolling die, etc.
O2 STEEL CHARACTERISTICS
O2 steel is a low alloy tool steel with superior comprehensive mechanical properties compared to carbon tool steel. Compared with carbon tool steel, O2 steel has higher hardness and wear resistance. In addition, O2 steel has relatively small deformation during quenching and good hardenability. Due to the presence of a certain amount of vanadium in steel, the grain size is refined and the overheating sensitivity of the steel is reduced.
The hardness of O2 steel is relatively high, generally above HRC 60. This allows it to withstand significant cutting forces and wear, extending the service life of the tool. At the same time, the wear resistance of O2 steel is also very good, which can maintain good performance under high-speed cutting and heavy load processing conditions.
O2 steel has good hardenability and can quickly achieve the required hardness. This makes it more convenient to manufacture complex shaped cutting tools. In addition, the deformation of O2 steel during quenching is relatively small, which is beneficial for maintaining the accuracy and surface quality of the cutting tools.
The addition of vanadium element in O2 steel can refine the grain size, improve the strength and toughness of the steel. Meanwhile, vanadium can also reduce the overheating sensitivity of steel, reducing the deformation and damage of cutting tools at high temperatures. This makes O2 steel more stable and reliable under high-speed cutting and high-temperature processing conditions.
O2 steel also has good resistance to tempering and softening, and can maintain high hardness and strength during the tempering process. This makes it more advantageous in manufacturing tools that require multiple tempering treatments.
In short, O2 steel is a low alloy tool steel with excellent performance, which has characteristics such as high hardness, high wear resistance, good hardenability, small deformation, high strength and toughness. These advantages give O2 steel great advantages in manufacturing various complex shaped cutting tools, especially suitable for conditions such as high-speed cutting, heavy load machining, and high-temperature machining. Therefore, O2 steel has been widely used in the tool manufacturing industry.