
O1 Cold Work Tool Steel
Qilu is an O1 manufacturer that offers a wide selection of sizes, shapes, and thicknesses.
Professional O1 cold work tool steel supplier
O1 steel is a kind of low-alloy cold work tool steel known for its excellent machinability and good wear resistance. Composed of Cr, Mn, and W, the cost is relatively low while offering good wear performance. The maximum hardness of O1 steel can reach 66 HRC, though it is typically hardened to 61-63 HRC. It is commonly used to manufacture cutting tools, woodworking tools, and blades. The high content of W element and Cr significantly enhances its wear resistance.
Shape Customization

Round bars:
Diameter: from 20mm to 400mm;
Length: 3m to 6m, can be customized.
Square bars:
Side length from 20mm to 200mm;
length: 1m to 4m, can be customized.


Plate:
Thickness: from 5mm to 200mm;
width: from 50mm to 500mm,up to 2000mm;
length: from 2m to 6m.
Customized.

Grade of different country and heat treatment
| Countries | Standard | Name |
| ABD | AISI | O1 |
| Germany | DIN | 1.2510/100MnCrW4 |
| Japonya | JIS | SKS3 |
| Çin | GB | 9CrWMn |
Chemical Composition:
| Sınıf | C | Si | Mn | P | S | Cr | W | V |
| O1 | 0.85~1.00 | 0.10~0.50 | 1.00~1.40 | ≤0.030 | ≤0.030 | 0.40~0.06 | 0.40~0.60 | ≤0.30 |
Surface condition

Application of O1 Cold Work Tool Steel

Forging molds
Used to manufacture various metal die-casting molds, such as automotive parts, electronic parts, etc.

Hot pressing molds
O1 is commonly used in the manufacture of hot forging dies, such as aerospace components and heavy machinery parts.

Hot extrusion dies
Can withstand high temperature metal extrusion processing, such as: construction industry, petrochemical equipment, etc.

Casting molds
O1 steel is used in the manufacture of metal casting molds, such as foundry and metallurgical industries.
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Your Excellent O1 Cold Work Tool Steel Manufacturer
Qilu company has been in the tool steel manufacturing industry for more than 30 years, we not only have excellent product quality, but also win many customers praise service, so that your every order is no worries!
Contact us now to buy it!
Contact us now to buy it!








