DC53 DIN 1.2360 Cold Work Tool Steel Bar is a high-performance cold work tool steel bar supplied for precision dies, punches, cold forming tools, blanking dies, stamping dies, shear blades and tooling components requiring high hardness, improved toughness and wear resistance. DC53 is commonly used as an upgraded cold work die steel, while DIN 1.2360 / X48CrMoV8-1-1 type material is associated with medium-alloy cold work tool steel applications.
SAKY STEEL supplies DC53 / 1.2360 type tool steel bar in annealed, hot rolled, forged, peeled, turned or ground condition according to purchase requirements. Available services may include cutting, peeling, turning, grinding, rough machining, dimensional inspection, hardness testing, ultrasonic testing when specified, MTC and EN 10204 3.1 documentation.
| Item | Product Details |
|---|---|
| Product Name | DC53 DIN 1.2360 Cold Work Tool Steel Bar |
| Grade | DC53 / DIN 1.2360 type / Cr8 modified steel |
| DIN / EN Designation | 1.2360 / X48CrMoV8-1-1 reference |
| Material Family | Cold work tool steel |
| Product Shape | Round bar and forged bar |
| Size Range | Regular and custom diameters by order |
| Length | 1000–6000 mm or cut to length |
| Surface Finish | Black, peeled, turned, ground |
| Delivery Condition | Annealed or heat treated when specified |
| Standard | DIN EN ISO 4957 / ASTM A681 reference |
| Tolerance | Mill, h9, h11 or drawing-specific |
| Available Services | Cutting, peeling, turning, grinding, machining |
| Certificates | MTC, EN 10204 3.1, dimensional report |
DC53 is generally regarded as a Cr8 series modified cold work die steel with added molybdenum and vanadium for improved hardness, toughness and wear resistance. DIN 1.2360 / X48CrMoV8-1-1 has a different standard designation and should be verified against the final purchase specification. The following table provides typical reference chemistry for material selection discussion.
| Element | Typical Reference Content | Technical Function |
|---|---|---|
| Carbon | About 0.90–1.05% | Provides hardness and wear resistance after heat treatment |
| Chromium | About 7.50–8.50% | Improves hardenability and wear resistance |
| Molybdenum | About 1.80–2.30% | Supports temper resistance and secondary hardening |
| Vanadium | About 0.20–0.40% | Refines carbides and improves wear resistance |
| Silicon | About 0.80–1.10% | Supports strength and tempering response |
| Manganese | About 0.30–0.50% | Supports hardenability and melting control |
| Phosphorus | Controlled maximum | Restricted to support toughness |
| Sulfur | Controlled maximum | Restricted to limit inclusions and improve tool reliability |
| Iron | Balance | Base metal matrix |
Actual chemical composition shall be confirmed by the applicable product specification and MTC.
Mechanical properties of DC53 cold work tool steel bar depend on diameter, heat treatment, tempering temperature, test direction, working hardness and tool geometry. The following values are typical references for engineering discussion and should not replace order-specific MTC or heat-treatment records.
| Property | Typical Reference | Condition | Engineering Meaning |
|---|---|---|---|
| Annealed Hardness | Usually below about 255 HB | Annealed bar | Supports machining before hardening |
| Working Hardness | About 60–63 HRC reference | Hardened and tempered | Used for precision dies and punches |
| Toughness | Improved compared with conventional D2 type steel | Proper heat treatment | Helps reduce chipping and cracking risk |
| Wear Resistance | High for cold work tools | Hardened condition | Supports blanking, forming and stamping dies |
| Dimensional Stability | Good with controlled heat treatment | Quenched and tempered | Important for precision tooling |
| EDM Response | Often selected for improved post-EDM reliability | Process dependent | Final surface treatment is still important |
| Density | About 7.8 g/cm³ reference | Room temperature | Used for bar weight calculation |
| Service Condition | Cold work use | Ambient or moderate temperature | Not intended as hot work die steel |
| Diameter | Length | Surface | Processing | Typical Use |
|---|---|---|---|---|
| Ø10–30 mm | 1000–6000 mm | Peeled or ground | Cutting and grinding | Small punches and pins |
| Ø35–80 mm | 2000–6000 mm | Peeled or turned | Machining allowance | Punches, inserts and die parts |
| Ø85–160 mm | Custom cut length | Rough turned | Saw cut or machined | Cold forming die components |
| Ø165–300 mm | Made to order | Forged and turned | UT when specified | Large tooling blanks |
| Above Ø300 mm | Project specific | Forged or machined | Technical review required | Heavy cold work tooling |
| Condition | Main Feature | Recommended Use | Purchase Advice |
|---|---|---|---|
| Hot Rolled Bar | Economical mill surface | Rough machining | Specify machining allowance |
| Forged Bar | Suitable for larger sections | Heavy tooling blanks | UT may be requested |
| Peeled Bar | Scale-free surface | CNC machining | Reduces surface preparation |
| Turned Bar | Controlled diameter allowance | Tooling blanks | Confirm final machining size |
| Ground Bar | Tight tolerance and smooth finish | Precision dies and punches | State h9, h8 or drawing tolerance |
| Grade | Main Strength | Relative Limitation | Typical Selection |
|---|---|---|---|
| DC53 | High hardness with improved toughness | Requires controlled heat treatment | Precision dies, punches and forming tools |
| D2 / 1.2379 | High wear resistance | Lower toughness than DC53 in many die applications | Long-run blanking and wear tools |
| A2 / 1.2363 | Air-hardening and dimensional stability | Different wear and toughness balance | Precision tools needing air-hardening response |
| O1 / 1.2510 | Good machinability and oil-hardening response | Lower wear resistance than Cr-rich grades | General punches, gauges and cutting tools |
| System | Designation | Relationship |
|---|---|---|
| Commercial Grade | DC53 | Modified cold work die steel grade |
| DIN / W.Nr. | 1.2360 | Related cold work tool steel reference |
| EN Name | X48CrMoV8-1-1 | Common designation for DIN 1.2360 type steel |
| Material Family | Cr8 cold work tool steel | General family reference |
| Product Standard | DIN EN ISO 4957 | Tool steel specification reference |
| ASTM Reference | ASTM A681 | Alloy tool steel reference, not exact DC53 designation |
| Inspection | Method | Purpose |
|---|---|---|
| Chemical Analysis | Laboratory analysis or MTC review | Confirm DC53 / 1.2360 type chemistry |
| PMI | Positive material identification | Available when specified; not a substitute for full chemistry |
| Hardness Test | HB or HRC test as applicable | Confirm annealed or heat-treated condition |
| Dimensional Inspection | Caliper, micrometer and length check | Verify diameter, length and tolerance |
| Surface Inspection | Visual and finish inspection | Check cracks, scale, laps or handling damage |
| Ultrasonic Testing | UT when specified | Evaluate internal soundness in suitable sizes |
| Traceability Review | Heat number and label verification | Link product to MTC and EN 10204 3.1 |
DC53 is often selected when users want higher working hardness and improved chipping resistance compared with conventional high-carbon high-chromium die steels. It is suitable for precision tools where both wear resistance and toughness are important.
Machinability is best in the annealed condition. Major turning, milling, drilling and rough machining are usually completed before hardening and tempering. Ground or peeled bars help reduce preparation time before CNC machining.
DC53 is often used for EDM-machined precision dies. After EDM, the recast layer, micro-cracks and surface stress should be controlled by suitable polishing, stress relieving or finishing procedures according to tool requirements.
DC53 is normally supplied annealed before machining and then hardened and tempered to the required working hardness. Heat treatment parameters should be selected according to bar diameter, tool geometry, target hardness, toughness requirement and distortion control.
DC53 is a high-performance cold work die steel designed for high hardness, improved toughness and wear resistance. It is commonly used for precision dies, punches, cold forming tools and stamping components.
Not always. DC53 and DIN 1.2360 are related cold work tool steel references, but they should not be treated as automatically identical. The final order should confirm chemistry, standard, heat treatment and inspection requirements.
DC53 is often selected as an upgraded alternative to D2 type steel when improved toughness and chipping resistance are required. D2 remains strong in wear resistance, while DC53 can offer a better balance of hardness, toughness and machinability in many die applications.
Yes. Black, peeled, turned and ground surfaces can be discussed according to diameter, tolerance and final machining requirement. Ground bars are suitable where tighter diameter control or improved surface finish is required.
DC53 is often used for EDM-machined precision die parts. After EDM, surface finishing, polishing or stress relief should be considered to reduce recast-layer and micro-crack risks.
UT can be arranged for suitable bar diameters and forged bars when specified. The order should define the test method, acceptance level and reporting requirement.
SAKY STEEL can provide MTC and EN 10204 3.1 documentation according to the purchase order. Hardness, dimensional, PMI or UT reports may also be arranged when specified.