SKS3/O1/1.2510/9CrWMn Special Alloy Steel Tool & Die Steel Rounds
Product Introduction
O1 tool steel is an oil hardening, cold work general purpose steel with easy machining properties and low hardening temperatures compared to other grades. O1 provides good wear resistance and toughness sufficient for standard tool and die applications making it a suitable choice for tooling with good tool life and econimcal production. In situations that require greater size stability during hardening, A2 should be considered. Some common applications include: bending dies, trimmer dies, perforators, broaches, blanking dies, forming dies, gages, cutting dies, bushings, forming rolls, knives, drawing dies, and embossing dies. O1 plates and flats are supplied in a decarb free and annealed condition.


Features
Chemical Composition
Heat Treatment
General Applications
Stock Size
The conditions of the materials vary from pre-hardened, hot rolled,annealed, quenched and tempered to surface conditions such as black, pre-machined,griding and polish.
Why choose us?
Quality Assurance from government owned steel mills
At Changfeng , we meticulously source materials only from steel manufacturers to ensure consistency in providing the finest quality steel products for our customers.
Being in the competitive market today, we clearly understand that customers are looking for products that are not only best in class but also affordably priced. We are confident that we are able to ful fil these two equally vital aspects -our customers' continuous support over the past two decades is the most heartfelt recognition to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as important as providing quality goods, we treat every business transaction as a priority. Be it a raw material or a finished material with machining or heat treatment, every effort will be made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers' demands and quality considerations, our integrated quality and work management system is continuously being improved and developed further. We document this for our customers by having our quality management system certified in accordance with ISO 9001. This measure is accompanied by audits and recertification's on a regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
Workshop

Quality Inspection
Packing & Delivery

Contact Us
Contact us for the latest price and more details NOW!
Product Introduction
O1 tool steel is an oil hardening, cold work general purpose steel with easy machining properties and low hardening temperatures compared to other grades. O1 provides good wear resistance and toughness sufficient for standard tool and die applications making it a suitable choice for tooling with good tool life and econimcal production. In situations that require greater size stability during hardening, A2 should be considered. Some common applications include: bending dies, trimmer dies, perforators, broaches, blanking dies, forming dies, gages, cutting dies, bushings, forming rolls, knives, drawing dies, and embossing dies. O1 plates and flats are supplied in a decarb free and annealed condition.


Features
- 1 Little distortion after heat treatment
- 2. Hardness up to HRC63
- 3. Good toughness, good crack-resistance
Chinese | American | German | Japanese |
GB | AISI | DIN | JIS |
9CrWMn | O1 | 1.2510 | SKS3 |
Grades | C | Si | Mn | P | S | V | W | Cr |
1.251 | 0.90-1.05 | 0.15-0.35 | 1.0-1.2 | ≤0.035 | ≤0.035 | 0.05-0.15 | 0.5-0.7 | 0.5-0.7 |
9CrWMn | 0.85-0.95 | ≤0.4 | 0.9-1.2 | ≤0.035 | ≤0.035 | / | 0.5-0.8 | 0.5-0.8 |
O1 | 0.85-0.95 | 0.2-0.4 | 1.0-1.3 | ≤0.035 | ≤0.035 | 0.2 | 0.4-0.6 | 0.4-0.6 |
Heat Treatment
Quenching | Tempering | ||||
Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
820-840 | Oil | 64-66 | 160-180 | Air | ≥62 |
General Applications
- 1Used for make cold die with small cross section and complicated shape and high precision
- 2. Used to make sheet stamping touch, jewelry embossing mold
- 3. Widely used in cutting tools, such as broaches, filament taps, long reamer, special milling cutters
- 4. For the overall hardened plastic mold
- 5. For thermosetting plastic forming, it requires high wear resistance and high strength mold

Stock Size
flat bar | Thickness | 10-70mm |
Width | 155-610mm | |
Length | 3000-6000mm | |
steel round bar | Diameter | 14-100mm |
Sizes and Conditions
Our steel materials are in different sizes and conditions specially catered to our customers' needs. They come in round bars, flat bars, plates and block.The conditions of the materials vary from pre-hardened, hot rolled,annealed, quenched and tempered to surface conditions such as black, pre-machined,griding and polish.
Why choose us?
Quality Assurance from government owned steel mills
At Changfeng , we meticulously source materials only from steel manufacturers to ensure consistency in providing the finest quality steel products for our customers.
Being in the competitive market today, we clearly understand that customers are looking for products that are not only best in class but also affordably priced. We are confident that we are able to ful fil these two equally vital aspects -our customers' continuous support over the past two decades is the most heartfelt recognition to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as important as providing quality goods, we treat every business transaction as a priority. Be it a raw material or a finished material with machining or heat treatment, every effort will be made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers' demands and quality considerations, our integrated quality and work management system is continuously being improved and developed further. We document this for our customers by having our quality management system certified in accordance with ISO 9001. This measure is accompanied by audits and recertification's on a regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
Workshop

Quality Inspection


Contact Us
Contact us for the latest price and more details NOW!