| Customization: | Available |
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| Type: | Steel Plate |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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1: O1 steel introduction
AISI / ASTM A681 O1 tool steel is a low alloy cold work tool steel that must be oil-quenched in heat treatment. Tools and dies made from O1 tool steel flat or rounds will have good wearing and abrasive qualities since the tungsten and higher chromium content gives improved wear resistance.
ASTM O1 tool steel has deep hardening properties with fine grain structure with unusual toughness. AISI O1 tool steel offers good durability, gives excellent wear resistance and holds a good cutting edge. O1 cold work tool steels also has good response to heat treatment with small dimensional changes.
2: O1 Steel equivalent
| Country | USA | German | Japan | China |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 | GB/T 1299 |
| Grades | O1 | 1.2510/100MnCrW4 | SKS3 | 9CrWMn |
3: O1 steel chemical composition
| Grade | C | Si | Mn | P | S | Cr | V | W |
| O1 | 0.85-1.00 | 0.10-0.50 | 1.00-1.40 | 0.03 | 0.03 | 0.40-0.70 | 0.30 | 0.40-0.60 |
| 1.2510 | 0.90-1.05 | 0.15-0.35 | 1.00-1.20 | 0.03 | 0.03 | 0.50-0.70 | 0.05-0.15 | 0.50-0.70 |
| SKS3 | 0.90-1.00 | 0.35 | 0.90-1.20 | 0.03 | 0.03 | 0.50-1.00 | / | 0.50-1.00 |
4: O1 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: O1 steel overviews
| Size | Round | Dia 8-350mm |
| Plate/Flat/Block | Thickness 2mm-300mm |
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| Width 200mm-800mm |
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| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
| Application |
O1 steels are mainly used for short run tooling for cold forming dies, blanking dies, and cutting tools operating at ambient temperature. Typical applications for O1 tool steel are blanking, forming, and trim dies, gages, slitting cutters, punches, bolster dies, knock-out pins, thread roll dies, bending dies, plastic mold dies, shims, cams, machine ways, stamps, machine parts, jigs, cutter templates, swaging dies, etc. |
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6: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
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