1.2714 (55NiCrMoV7) Hot Work Die Steel Forgings | Custom China Manufacturer | Jiangsu Liangyi
🕒 Last Updated: March 2026 | Permanent Link
Quick Summary: 1.2714 (also known as 55NiCrMoV7 per DIN EN) is a premium oil- and air-hardening hot work die steel with excellent toughness and superior through hardenability. Jiangsu Liangyi Co.,Limited — an ISO 9001:2015 certified China manufacturer founded in 1997 — We produce custom 1.2714 forgings from 30 KGS to 30,000 KGS per piece, according to ASTM, DIN, and EN standards, and deliver the products globally to 50+ countries with a standard lead time of 15–30 days.
1.2714 (55NiCrMoV7) Quick Technical Specifications
About 1.2714 (55NiCrMoV7) Hot Work Die Steel
Jiangsu Liangyi Co.,Limited is founded in 1997, It is an ISO 9001:2015 certified professional manufacturer of 1.2714 (55NiCrMoV7) open die forging parts and seamless rolled steel forged rings from our 80,000㎡ factory in Jiangyin City, Jiangsu Province, China.
1.2714 — also designated as 55NiCrMoV7 under the DIN EN standard (equivalent to AISI L6 tool steel) — is a premium oil- and air-hardening hot work die steel, with excellent toughness, superior through hardenability, and high compressive strength. This versatile material is widely used in demanding industrial applications that require long-term resistance to high mechanical and thermal stresses.
As a professional China forging manufacturer, we provide complete in-house production from steel melting, forging, heat treatment, machining to final inspection, we also provide high-quality custom 1.2714 forgings to global clients across Europe, North America, the Middle East, etc.
1.2714 Forged Round Bars
55NiCrMoV7 Seamless Rolled Rings
1.2714 Forged Extrusion die holders & die rings
Why Choose Jiangsu Liangyi for Your 1.2714 (55NiCrMoV7) Forgings?
29+ Years Forging Expertise
We specialized in custom steel forgings since 1997, and provide service to clients from 50+ countries
complete In-House Production
From steel melting, forging, heat treatment to machining, The whole process can be completed in our China factory
Advanced Production Equipment
Our factory equipped with 2000T-6300T hydraulic presses, 5M seamless rolling machines, and 10+ heat treatment furnaces
Strict Quality Control
100% ultrasonic testing according to ASTM A578-S9, full chemical and mechanical inspection
Full Customization Capability
We produce forgings from 30KGS to 30000KGS per piece, 100% customized according to your drawings and requirements
Global Delivery Support
Flexible shipping solutions, with long-term cooperation with major shipping lines for timely worldwide delivery
Custom 1.2714 (55NiCrMoV7) Forging Product
We provide customizable 55NiCrMoV7 forging parts in different kinds of shapes and specifications to meet your unique project requirements. Our products 100% follow ASTM, DIN, EN international standard . Our available product shapes include:
Forged Bars & Rods
1.2714 forged round bars, square bars, flat bars, rectangular bars and rods, available in custom dimensions from small diameter to large size, with complete heat treatment support.
Seamless Rolled Rings & Forged Rings
55NiCrMoV7 seamless rolled rings and forged rings for high-stress industrial applications, with outer diameter up to 5 meters, including gear rings, bearing rings and custom contoured rings.
Hollow Parts, Sleeves & Casings
1.2714 forged hubs, housings, shells, sleeves, bushes, casings, and hollow bars with custom inner and outer diameter specifications for valves, oil and gas, and machinery.
Forged Shafts, Gears & Spindles
55NiCrMoV7 forged shafts, gear wheels, pinion shafts, spindles and other transmission components, with full heat treatment and machining support, for automotive, power generation and machinery industries.
Forged Discs, Plates & Blocks
1.2714 forged discs, disks, blocks, plates and custom forged geometric parts, for die and mould base applications, with uniform material structure and guaranteed mechanical properties.
View All ProductsCustom 1.2714 Forging Process
We make custom forged parts out of 1.2714 (55NiCrMoV7) steel, and we do whole processing from getting your drawing to delivering the finished product. Our standard process is as follows:
Inquiry & Quotation
We will provide a detailed quotation within 24 hours after you send us your drawing, material requirement, quantity and other specifications.
Order Receiving & Production planning
After we confirm the quotation, sign the contract, we will prepare the production plan immediately.
Steel Melting & Forging
We produce the steel ingot with your required melting process. We have great production control, and we will process the forging according to your drawing.
Heat Treatment & Machining
We process the heat treatment as per your needs to make the parts can follow to the specified mechanical properties. We can also do machining according to your requirements no matter rough machining or finished machining.
Inspection & Certification
We can provide all inspection including dimensional check, ultrasonic testing, chemical analysis and mechanical property test, we also provide complete MTC 3.1/3.2 certificate.
Delivery & After-Sales
Arrange the packaging and shipping according to your requirements, provide full shipping documents, and follow up the after-sales service until you receive the goods.
Melting & Refining Processes for 55NiCrMoV7 Forged Steel
We have different melting and refining processes for all 1.2714 (55NiCrMoV7) forged materials that follow your specific quality needs, from standard EAF to high-purity vacuum melting:
- EAF: Electric Arc Furnace
- EAF+LF+VD: Electric Arc Furnace + Ladle Refining + Vacuum Degassing
- EAF+ESR: Electric Arc Furnace + Electro Slag Remelting
- EAF+PESR: Electric Arc Furnace + Protective Atmosphere Electro Slag Remelting
- VIM+PESR: Vacuum Induction Melting + Protective Atmosphere Electro Slag Remelting
All our melting processes are strictly controlled to make sure the chemical composition and purity of 55NiCrMoV7 steel meet international standards, with full traceability for every heat number.
Chemical Composition of 1.2714 (55NiCrMoV7) Steel
The chemical composition of our 55NiCrMoV7 forged steel strictly according to DIN EN standard, with the following element ranges, 100% traceable with heat number and mill test certificate:
| Element | Content Range (Weight %) |
|---|---|
| Carbon (C) | 0.50 - 0.60 |
| Silicon (Si) | 0.10 - 0.40 |
| Manganese (Mn) | 0.60 - 0.90 |
| Nickel (Ni) | 1.50 - 1.80 |
| Phosphorus (P) | Max 0.030 |
| Sulfur (S) | Max 0.030 |
| Chromium (Cr) | 0.80 - 1.20 |
| Molybdenum (Mo) | 0.35 - 0.55 |
| Vanadium (V) | 0.05 - 0.15 |
Heat Treatment Specifications for 1.2714 Forged Parts
We provide standard and customized heat treatment process for 55NiCrMoV7 forging parts. This process can give the forged parts the hardness and mechanical properties you need. We have all the records of the heat treatment that came with the inspection report:
Soft Annealing
Heat to 650-700℃, cool slowly in furnace. This process produces a maximum Brinell hardness of 248 HB, ideal for subsequent machining operations, reducing tool wear and improving machining efficiency.
Stress Relieving
To eliminate the processing stress and reduce the deformation during the final heat treatment, we heat the parts to 650°C and maintain the temperature for one hour (the holding time may be longer for larger parts), and then conduct controlled air cooling. For complex-shaped parts and precision-machined components, it is strongly recommended to terminate this process.
Hardening
- First, perform the hardening treatment at a temperature of 830-870 degrees Celsius. Then, after quenching, it is necessary to heat treat the surface of the part with a high-temperature furnace for 30 minutes.
- Air Quenching: Air-burning first, then material alls, quenched at a temperature of 830-900 degrees Celsius and for large parts, the deformation is extremely small.Complex-shaped components
Tempering Hardness Reference
Hardness of 1.2714 steel after tempering at different temperatures (reference values, fully customizable according to your application requirements):
- 300℃ tempering: ~54 HRC
- 350℃ tempering: ~52 HRC
- 400℃ tempering: ~51 HRC
- 450℃ tempering: ~50 HRC
- 500℃ tempering: ~49 HRC
- 550℃ tempering: ~48 HRC
- 600℃ tempering: ~46 HRC
Double tempering is standard for all our 1.2714 forgings to make sure stable mechanical properties and dimensional stability, with a minimum holding time of 2 hours per tempering cycle.
Mechanical Properties & Quality Control Standards
The table below lists the representative mechanical properties of 1.2714 (55NiCrMoV7) steel in heat-treated condition (quenched and tempered to approximately 38–42 HRC), which is the standard delivery condition for most forging die applications:
| Mechanical Property | Test Standard | Typical Value | Unit |
|---|---|---|---|
| Tensile Strength (Rm) | ASTM E8 / EN ISO 6892-1 | 1,200 – 1,380 | MPa |
| Yield Strength (Rp0.2) | ASTM E8 / EN ISO 6892-1 | 1,050 – 1,200 | MPa |
| Elongation (A) | ASTM E8 | ≥ 10 | % |
| Reduction of Area (Z) | ASTM E8 | ≥ 40 | % |
| Impact Toughness (KV, Charpy) | ASTM E23 / EN ISO 148-1 | ≥ 27 | J (at 20°C) |
| Hardness (Q+T, ~38–42 HRC) | ASTM E10 (HB) | 370 – 430 | HB |
| Hardness (Softened Delivery) | ASTM E10 (HB) | ≤ 248 | HB |
| Max Quenched Hardness | ASTM E18 (HRC) | Up to 58 | HRC |
Note: All mechanical test results are provided in the Mill Test Certificate (MTC) 3.1/3.2 for every production batch.The values above are suggested ranges. The results will depend on the size of the parts, the heat treatment settings, and the testing position
Physical & Thermal Properties of 1.2714 (55NiCrMoV7)
Key physical and thermal properties of 55NiCrMoV7 steel relevant to die design and heat treatment process planning:
| Physical Property | Value | Condition / Temperature |
|---|---|---|
| Density | 7.80 g/cm³ | Room temperature |
| Thermal Conductivity | ~28.5 W/(m·K) | At 200°C |
| Thermal Expansion Coefficient | 13.0 × 10⁻⁶ /K | 20 – 200°C |
| Elastic Modulus (E) | 210 GPa | Room temperature |
| Specific Heat Capacity | ~460 J/(kg·K) | Room temperature |
Forging Temperature Range for 1.2714 (55NiCrMoV7)
Proper temperature control is critical for 1.2714 (55NiCrMoV7) forged parts to have better structure and mechanical properties . Our factory follows below temperature protocols:
- Heating Temperature: 1,050°C – 1,150°C (homogenization soak before forging)
- Start Forging Temperature: Max 1,100°C (above this risks overheating/burning)
- Finish Forging Temperature: Min 850°C (below this risks forging cracking)
- Cooling After Forging: Slow cool in sand or furnace (prevents thermal cracking and hydrogen embrittlement)
All forging temperature records are documented with thermocouple logs and included in the manufacturing process report upon request.
Our 55NiCrMoV7 forging parts are manufactured according to international quality standards. Following guaranteed properties and full inspection support are attached for every batch:
- Softened delivery condition: Hardness ≤248 HB
- Ultrasonic testing: All 1.2714 forged parts are 100% tested in accordance with ASTM A578-S9 specification, with optional Level C/D inspection available
- Grain size: Uniform 7/8 grain size, tested in accordance with ASTM E 112 method
- Internal soundness: No harmful inclusions, porosity or shrinkage defects, guaranteed by strict melting and forging processes
Inspection & Certification Standards
Our 1.2714 (55NiCrMoV7) forged steel materials are all inspected and tested according to international standards which including:
- ASTM E 8 / ASTM E 8M: Tension Testing of Metallic Materials
- ASTM E 10: Brinell Hardness of Metallic Materials
- ASTM E 139: Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
- ASTM E 292: Conducting Time-for-Rupture Notch Tension Tests of Materials
- ASTM A578: Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
- ASTM E 112: Standard Test Methods for Determining Average Grain Size
Full Inspection Report Included
Every batch of our finished 55NiCrMoV7 forging parts comes with a complete Mill Test Certificate (MTC) 3.1/3.2, including the following content:
- Identification number, material number and designation, order number, drawing number, and specification number
- Heat number, heat chemical analysis, melting method, and product chemical analysis
- Full heat treatment certification, including cooling method, actual part temperature, holding time, cooling condition, and complete temperature-time records
- Nondestructive testing (NDT) records and NDT inspector certification
- Results of all mechanical tests and residual stress measurements (for process qualification)
- Dimensional and visual inspection report, cleaning verification, and all deviation reports
Trade & Delivery Terms
We provide different kinds of trade and delivery solutions to meet the needs of clients, with the following standard terms available:
Trade Terms
FOB, CIF, CFR, EXW, DDP
Lead Time
15-30 Days Standard
Payment Terms
T/T, L/C at Sight
Port of Loading
Shanghai, Ningbo, China
1.2714 (55NiCrMoV7) Industry Applications & Verified Case Studies
1.2714 (55NiCrMoV7) hot work die steel is widely used in hot forming tools, hot shear blades, extrusion tools, punches, forging machine tools, tool holders, die holders, plastic injection/compression mould cores and cavities, large-size moulds with high-quality finish requirements, and dies under high mechanical and thermal stresses. Below is the cases for the application of our forging parts:
Case 1: Automotive Hot Forging Die Inserts
People often use our 1.2714 forged die blocks to make hot forging dies for car parts like connecting rods, crankshafts, and gear blanks. The 55NiCrMoV7 steel has very high compressive strength and resistance to thermal fatigue after being heat treated.In continuous forging production lines with working temperatures up to 600℃, our China-manufactured die inserts can have over 30% longer life cycled than conventional hot work steels. It greatly reducing downtime and production costs for global automotive parts manufacturers.
Case 2: Aluminum Extrusion Tools & Punches
We supply ESR-refined 55NiCrMoV7 forged extrusion dies, punches and mandrels for aluminum profile extrusion lines. Our steel has better through hardenability and dimensional stability, this advantages can make sure consistent performance for complex cross-section aluminum profiles, including new energy vehicle (NEV) body structural parts and construction aluminum profiles. Our 1.2714 extrusion tools can meet the requirements of the standards, it has long-term cyclic extrusion stress at elevated temperatures.
Case 3: Large-Scale Plastic Injection Mould Cores & Cavities
1.2714 steel is the best choice for big plastic injection and compression molds that need a smooth surface finish. People use our forged 55NiCrMoV7 mould blocks a lot to make shells for home appliances, trim parts for cars, and moulds for industrial plastic parts. The material's ability to be polished and its resistance to thermal deformation keep its high surface finish and dimensional accuracy even after long-term cyclic injection production. This makes it a top choice for mold makers around the world who get their supplies from China.
Case 4: Hot Shear Blades for Steel Mills
Our 1.2714 forged flat bars are processed into hot shear blades for continuous casting and steel rolling lines in steel mills. With a tailored heat treatment process, the 55NiCrMoV7 blades combine high hardness and exceptional toughness, it can resist chipping and wear when cutting hot steel billets at temperatures over 800℃. Our China-supplied shear blades can reduce blade replacement frequency, and can improve production efficiency for steel manufacturing clients all over the world.
1.2714 (55NiCrMoV7) vs Other Hot Work Die Steels: Comparison Guide
Choosing the right hot work die steel is critical for tool life and performance. According to industry practice and DIN EN material standards, the table below compares 1.2714 (55NiCrMoV7) with other common hot work die steels — H13 (1.2344), H11 (1.2343), and 1.2767 — to help buyers make the right material selection for their application:
| Property / Grade | 1.2714 / 55NiCrMoV7 ✓ | H13 / 1.2344 | H11 / 1.2343 | 1.2767 / 45NiCrMoV16-6 |
|---|---|---|---|---|
| AISI Equivalent | L6 | H13 | H11 | — |
| C Content (%) | 0.50–0.60 | 0.32–0.45 | 0.33–0.41 | 0.40–0.50 |
| Ni Content (%) | 1.50–1.80 | — | — | 3.80–4.30 |
| Quenched Hardness | Up to 58 HRC | Up to 54 HRC | Up to 54 HRC | Up to 54 HRC |
| Toughness | ★★★★★ Excellent | ★★★★ Good | ★★★★ Good | ★★★★★ Excellent |
| Hot Wear Resistance | ★★★★ Good | ★★★★★ Excellent | ★★★★ Good | ★★★ Moderate |
| Through Hardenability | ★★★★★ Superior | ★★★★ Good | ★★★ Moderate | ★★★★★ Superior |
| Typical Applications | Forging dies, extrusion punches, large plastic moulds, hot shear blades | Extrusion dies, die casting, pressure die tooling | Extrusion dies, press tools, hot shear blades | Large dies, plastic mould frames, heavy tooling |
| Recommended Where | High toughness + large cross-section required | High heat resistance + wear resistance required | Moderate stress + good toughness needed | Highest toughness in massive sections |
Note: All grades are available as custom forgings from Jiangsu Liangyi. View all available materials →
Frequently Asked Questions About 1.2714 (55NiCrMoV7) Forgings
Inquire About Custom 1.2714 (55NiCrMoV7) Forging Parts
Jiangsu Liangyi Co.,Limited is your best choice for high-quality 1.2714 (55NiCrMoV7) forging parts. Please send your inquiries for custom forged components, our technical team will provide you with a best quote within 24 hours.
📧 Inquiry Email: [email protected]
📞 Phone/WhatsApp: +86-13585067993
🌐 Website: https://www.jnmtforgedparts.com
📍 Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, China
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