Reference price: USD 10 per kg. Final quotation depends on drawing, dimensions, total weight, machining, inspection requirements and order quantity.
About 1.2888 (X20CoCrWMo10-9) Hot Work Tool Steel
Jiangsu Liangyi is an ISO 9001:2015 certified China-based manufacturer established in 1997, with high-quality 1.2888 steel (also designated as X20CoCrWMo10-9, X20CoCrWMo109, X20CoCrWMo10.9) open die forging parts and seamless rolled steel forged rings. With over 26 years of professional forging experience, an 80,000㎡ production facility, and 120,000 tons annual manufacturing capacity, we specialize in custom DIN-standard 1.2888 forgings. We can provide production from steel melting, forging, heat treatment to precision machining, and follow international standards and client specifications.
As a high quality cobalt-alloyed hot work tool steel, 1.2888 (X20CoCrWMo10-9) has high-temperature strength, superior thermal fatigue resistance, good molten metal erosion resistance, and outstanding hardness retention at elevated temperatures. This makes it be the best choice for industry material for heavy-duty hot working tooling and critical industrial components in extreme working environments, outperforming standard hot work steels like H13 in harsh applications.
We supply custom 1.2888 forging parts to clients over more than 50 countries, including Germany, the United States, Italy, Australia, the UAE, and Saudi Arabia, and we can process non-ferrous metal extrusion, high-pressure die casting, automotive manufacturing, and industrial metal processing .
Our factory is located in Jiangyin City, Jiangsu Province, China — one of China's most established forging and steel manufacturing hubs. Jiangyin's strategic location on the Yangtze River make sure it can access to premium raw material supply chains and major international shipping ports (Shanghai, Ningbo), so we can deliver custom 1.2888 forgings to customers in Europe (Germany, Italy, France, Netherlands, UK, Spain), North America (USA, Canada), Australia, the Middle East (UAE, Saudi Arabia), and across Southeast Asia.
Key Advantages of 1.2888 (X20CoCrWMo10-9) Steel
Compared with conventional hot work tool steels, 1.2888 (X20CoCrWMo10-9) has unparalleled performance for high-temperature industrial applications, making it the best choice for demanding tooling applications. Its main benefits include:
Exceptional High-Temperature Strength
It has excellent hardness and mechanical properties under continuous high-temperature operating conditions, ideal for long-term hot working operations.
Good Thermal Fatigue Resistance
It has great resistance to thermal cracking and heat checking, so it can extend the life of the tool in the environments with frequent temperature changes.
Outstanding Molten Metal Erosion Resistance
It has superior anti-erosion performance against molten non-ferrous metals like magnesium, copper, and brass, this character makes it the best choice for die casting and extrusion applications.
Optimized Hardness & Toughness Balance
Its customizable heat treatment has the balance of hardness, impact toughness, and wear resistance, it is the best choice for your specific application needs.
Custom Forged Forms of 1.2888 (X20CoCrWMo10-9) Steel
We supply X20CoCrWMo10-9 forged steel in different kind of custom shapes and dimensions, 100% follow your 2D/3D drawings and technical requirements. Our advanced forging equipment can support the production of forged steel from 30KGS to 30,000KGS per piece, with complete precision machining. Our available forged forms include:
- Forged bars: 1.2888 round bars, square bars, flat bars, rectangular bars and industrial rods
- Forged rings: X20CoCrWMo10-9 seamless rolled rings, contoured rings in custom outer diameter, wall thickness and height
- Custom hollow components: 1.2888 forged hubs, housings, shells, sleeves, bushes, bushings, cases and hollow bars
- Solid forgings: X20CoCrWMo10-9 forged discs, disks, solid blocks, precision plates and extrusion dies
- Pipe & casing forgings: 1.2888 forged pipes, tubes, tubing, casings, barrels and pressure-containing shells
- Custom forged components: custom 1.2888 forging parts follow your drawings and specific application requirements
If you need custom 1.2888 (X20CoCrWMo10-9) forged parts please send your drawings to us to get a free quote within 24 hours!
Send Inquiry to us NowIndustrial Applications & Verified Cases of 1.2888 Forging Parts
Main Industrial Applications
Our forged 1.2888 (X20CoCrWMo10-9) parts are engineered for critical high-temperature working applications, with industry-proven performance in the most demanding scenarios. Its main applications include:
- Extrusion dies for magnesium, copper, brass, zinc, and aluminum extrusion presses
- Extrusion stems, rams and piercing mandrels for non-ferrous and ferrous metal extrusion equipment
- Extrusion tooling, bolsters, and die holders for copper, copper alloys, steel, and brass extrusion
- Goosenecks, shot sleeves and chambers for high-pressure magnesium and non-ferrous die casting
- Extrusion dummy blocks, liners and wear parts for heavy-duty industrial extrusion presses
- Other high-temperature tooling components requiring thermal shock resistance and wear resistance
Verified Industry Application Cases
To help clients extend their tool’s life cycle and reduce production downtime and lower overall manufacturing costs, we have developed tailored 1.2888 forging solutions for multiple industrial scenarios. Our verified application cases include:
Aluminum & Magnesium Alloy Extrusion Die Case
For large-scale aluminum profile extrusion presses (2500T to 10000T), our 1.2888 (X20CoCrWMo10-9) forged extrusion dies has exceptional high-temperature strength and thermal fatigue resistance. It can extend the life cycle of the tool by over 40% under continuous high-pressure extrusion operations compared with standard H13 hot work steels, They are ideal for mass production of complex aluminum and magnesium profiles for automotive lightweighting, construction, and industrial manufacturing industries.
Copper & Brass Alloy Extrusion Stem Case
A leading copper processing enterprise adopted our 1.2888 forged extrusion stems for their 5000T heavy-duty copper extrusion press. The ESR-refined 1.2888 steel make sure uniform, fine microstructure and excellent high-temperature wear resistance, withstanding extreme thermal shock and mechanical stress during continuous hot extrusion of copper and brass alloys. The stems has a 35% longer life cycle than the client’s previous material, it can reduce equipment downtime and costs.
Magnesium Die Casting Gooseneck & Chamber Case
Our X20CoCrWMo10-9 forged goosenecks and shot chambers are commonly used in high-pressure magnesium die casting equipment for automotive lightweight component manufacturing. The material’s outstanding resistance to molten magnesium erosion and thermal cracking can make sure stable performance in long-term high-temperature casting environments. Many global die casting factories in Europe and North America have replaced traditional materials with our 1.2888 forgings to reduce part replacement frequency and improve production efficiency.
Brass Extrusion Bolster & Die Holder Case
We supply custom 1.2888 forged bolsters and die holders for heavy-duty brass and copper extrusion presses, These main structural components require high rigidity and exceptional dimensional stability under repeated thermal and mechanical loads. Our precision-forged 1.2888 parts, paired with optimized heat treatment processes, have tight tolerances and structural integrity even after long-term continuous use, can extend the life cycle of the entire extrusion tooling system.
Chemical Composition of 1.2888 (X20CoCrWMo10-9) Steel
The chemical composition of our 1.2888 hot work tool steel 100% follow DIN EN international standards, with precise batch-to-batch control of each element to make sure stable and consistent material performance for your critical applications. All batches attached with complete chemical composition test reports in the official Mill Test Certificate (MTC).
| Chemical Element | Standard Content Range (%) |
|---|---|
| Carbon (C) | 0.17 - 0.23 |
| Silicon (Si) | 0.15 - 0.35 |
| Manganese (Mn) | 0.40 - 0.60 |
| Phosphorus (P) | Max 0.035 |
| Sulfur (S) | Max 0.035 |
| Chromium (Cr) | 9.00 - 10.00 |
| Molybdenum (Mo) | 1.80 - 2.20 |
| Tungsten (W) | 1.00 - 1.60 |
| Cobalt (Co) | 9.50 - 10.50 |
Mechanical Properties of 1.2888 (X20CoCrWMo10-9) Steel After Heat Treatment
The typical mechanical properties of 1.2888 (X20CoCrWMo10-9) steel after standard quenching and tempering heat treatment are listed below. Actual data may different slightly due to the specific heat treatment cycle, part dimensions, and testing direction. All our supplied forgings are batch-tested and documented in the official EN 10204 3.1 Mill Test Certificate.
| Property | Typical Value (Q+T Condition) | Test Standard |
|---|---|---|
| Hardness | 45 – 52 HRC (customizable) | ISO 6508 / ASTM E18 |
| Tensile Strength (Rm) | 1,400 – 1,700 MPa | ISO 6892-1 / ASTM A370 |
| Yield Strength (Rp0.2) | 1,200 – 1,500 MPa | ISO 6892-1 / ASTM A370 |
| Elongation (A5) | ≥ 8 % | ISO 6892-1 |
| Reduction of Area (Z) | ≥ 30 % | ISO 6892-1 |
| Impact Toughness (KV, +20°C) | ≥ 18 J (longitudinal) | ISO 148-1 / ASTM E23 |
| Density | ≈ 7.85 g/cm³ | — |
| Modulus of Elasticity | ≈ 210 GPa | — |
Note: exact mechanical property data are available in the EN 10204 3.1 Mill Test Certificate will be provided for each delivery.
1.2888 (X20CoCrWMo10-9) vs H13 (1.2344): Full Comparison Table
Choosing between 1.2888 steel and H13 (1.2344) is a critical decision for hot working tooling applications. Below table provides a comprehensive side-by-side comparison of these two leading hot work tool steels to help engineers and procurement teams make the optimal material selection:
| Property / Feature | 1.2888 (X20CoCrWMo10-9) | H13 (1.2344 / SKD61) |
|---|---|---|
| DIN Number | 1.2888 | 1.2344 |
| AISI/ASTM Equivalent | — | H13 |
| Cobalt (Co) Content | 9.50 – 10.50% (Co-alloyed) | None |
| Tungsten (W) Content | 1.00 – 1.60% | None |
| High-Temperature Hardness Retention | ★★★★★ Excellent | ★★★☆☆ Good |
| Thermal Fatigue Resistance | ★★★★★ Superior | ★★★★☆ Very Good |
| Molten Metal Erosion Resistance | ★★★★★ Outstanding | ★★★☆☆ Good |
| Toughness | ★★★★☆ Very Good | ★★★★★ Excellent |
| Machinability | ★★★☆☆ Moderate | ★★★★☆ Good |
| Typical Service Life (vs H13) | +30% to +50% longer | Baseline |
| Best Applications | Copper/brass extrusion, Mg die casting, heavy-duty hot tooling | Al extrusion, general die casting, pressure die casting |
| Material Cost | Higher (premium) | Standard |
| Total Cost of Ownership | Lower (longer service life) | Higher (more frequent replacement) |
Recommendation: The maximum life cycle is critical for applications involving copper, brass, or magnesium extrusion, and for any high-pressure die casting environments , 1.2888 (X20CoCrWMo10-9) provides a superior total cost of ownership despite its higher upfront material cost. H13 (1.2344) is a proven and cost-effective choice for general aluminum extrusion and die casting applications with moderate temperature demands . You can contact our technical team to get a professional suggestion for material choosing.
Standard Heat Treatment Processes for 1.2888 Forged Parts
We use standardized heat treatment processes for all X20CoCrWMo10-9 forged parts, so that can meet the requirement of mechanical properties, optimized microstructure, and excellent dimension. Our professional heat treatment team can also process the parts based on your specific requirements. This kind of parts can be used for different applications. Our main heat treatment processing include:
Soft Annealing
Heat the 1.2888 steel to 760–840°C, then let it cool slowly in the furnace for 4–6 hours. This process produces a maximum Brinell hardness of 320 HB, and can improve machinability for subsequent precision machining operations.
Stress Relieving
To remove residual stresses in machining and minimize dimensional distortion during final heat treatment, we do stress relieving by heating the parts to 600-650°C and hold at the target temperature for 1-2 hours, followed by controlled air cooling.
Hardening
We will austenite the parts at 1100-1150°C, and we will control the time based on part thickness, followed by air cooling, oil quenching, or vacuum quenching based on part geometry and performance requirements. The hardness can reach approximately 52 HRC after quenching
Tempering
Tempering need to be processed at a precisely controlled temperature of 600-750°C with 2 to 3 tempering cycles, this can eliminate internal stresses and optimize the balance of hardness, toughness, and thermal fatigue resistance for your specific application scenarios.
Premium Melting Methods for 1.2888 (X20CoCrWMo10-9) Steel
We provide different melting processes for 1.2888 tool steel to meet the quality, performance, and industry standards of each client. We can give you a material certification for each batch because all melting processes are 100% traceable:
- EAF: Electric Arc Furnace
- EAF+LF+VD: Electric Arc Furnace + Ladle Refining + Vacuum Degassing
- EAF+ESR: Electric Arc Furnace + Electro Slag Remelting (for ultra-high cleanliness requirements)
- EAF+PESR: Electric Arc Furnace + Protective Atmosphere Electro Slag Remelting
- VIM+PESR: Vacuum Induction Melting + Protective Atmosphere Electro Slag Remelting (for aerospace and high-end precision applications)
Strict Quality Assurance & Testing for 1.2888 Forgings
Every finished 1.2888 (X20CoCrWMo10-9) forging part has rigorous, full-process inspection and testing by our professional QC department, to make sure the parts is 100% according to client specifications, DIN EN standards, and international forging quality requirements. All products all attached with a complete Mill Test Certificate (MTC) EN 10204 3.1 / 3.2 as required. Our quality inspection ways include:
- Visual and surface quality examination
- Dimensional tolerance and marking verification
- Chemical composition analysis and material certification
- Mechanical property testing (hardness, tensile strength, impact toughness, etc.)
- Macrostructure and microstructure metallographic inspection
- Residual stress measurement
- Ultrasonic testing (UT) for internal defects
- Penetrant testing (PT) for surface defects
Frequently Asked Questions About 1.2888 (X20CoCrWMo10-9) Steel
We have provided the most common questions from our clients about 1.2888 hot work tool steel and custom forgings:
11.2888 (X20CoCrWMo10-9) is a high-quality steel used in hot working tool .It is mostly used in the aluminum, magnesium, copper, and brass processing industries for making extrusion dies, extrusion stems, die casting goosenecks, bolsters, and other high-temperature tooling parts.
After standard quenching and tempering, 1.2888 steel hardness is 45-52 HRC. We can process the heat treatment to meet the specific hardness and toughness.
1.2888 (X20CoCrWMo10-9) provide better high-temperature hardness retention, superior thermal fatigue resistance, and higher molten metal erosion resistance than H13 (1.2344) steel. 1.2888 (X20CoCrWMo10-9) is more suitable for heavy-duty high-temperature applications like copper extrusion and magnesium die casting. it has 30-40% longer service life than H13 in harsh working conditions.
Yes, we could supply custom 1.2888 forgings according to your 2D/3D drawings. We can supply full production process from steel melting, forging, heat treatment to precision machining, with single piece weight ranging from 30KGS to 30,000KGS.
We provide a full Mill Test Certificate (MTC) EN 10204 3.1 for every batch of 1.2888 forgings, including chemical composition test reports, mechanical property test results, heat treatment records, and non-destructive testing reports. we could ask third party to inspect material and release EN 10204 3.2 certificate.
The normal lead time is 15-25 work days. The lead time depends on the order quantity, and machining requirements. We can also accept your urgent orders.
We can accept small sample order and mass production order for 1.2888 (X20CoCrWMo10-9) forged parts, to meet the different needs of clients from R&D to mass production.
We can ship custom 1.2888 (X20CoCrWMo10-9) forgings to more than 50 countries, like Germany, the United States, Italy, Australia, the UAE, Saudi Arabia, France, the Netherlands, Spain, Canada, Turkey, India, South Korea, and many more. We have rich experience with international shipping, customs documentation, and export compliance requirements.
Yes, the complete designation X20CoCrWMo10-9 confirms that 1.2888 contains Tungsten (W) in the range of 1.00–1.60%. Tungsten, combined with Cobalt (9.5–10.5%) and Chromium (9–10%), so that this material have exceptional high hardness and thermal stability — key advantages comparing with H13 in copper extrusion and die casting plant
We provide EAF, EAF+LF+VD, EAF+ESR, EAF+PESR, and VIM+PESR melting ways for 1.2888 forgings. ESR (Electro Slag Remelting) and PESR are to make sure that all our raw material have ultra-high cleanliness, uniform microstructure, and superior fatigue life. All melting ways are added with complete chemical analysis data in traceable certification document.
Inquire for Custom 1.2888 (X20CoCrWMo10-9) Forging Parts
Jiangsu Liangyi is your best choice for high-quality custom 1.2888 forging parts. Whether you need standard forged bars, seamless rolled rings, or custom forged components with precision machining, we can provide you tailored solutions with good pricing, high quality and on-time delivery.
Welcome to contact us, please send us your detailed information like drawings, material requirements, and order quantity. Our professional sales and technical team will get back to you with a detailed quote and technical support within 24 hours
📧 Inquiry Email: [email protected]
📞 Phone/WhatsApp: +86-13585067993
🌐 Official Website: https://www.jnmtforgedparts.com
📍 Factory Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, China