Hunan Dinghan New Material Technology Co., LTD
| Manufacturing Process | Seamless Ring Rolling / Open-Die Forging |
| Elongation | ≥18% |
| Supply Ability | Negotiable |
| Packaging Details | According to Customers' Requests |
| Height | 50mm - 500mm+ |
| Hardness | ≤35 HRC |
| Density | 8.28 g/cm³ |
| Tensile Strength | ≥1170 MPa |
| Heat Treatment | Solution + Aging + Precipitation Hardening |
| Yield Strength | ≥790 MPa |
| Payment Terms | T/T |
| Outer Diameter | 100mm - 1500mm+ |
| Delivery Time | (Sample Order) 7 days |
| Grade | Inconel X-750 / UNS N07750 |
| Brand Name | Dingsco |
| Certification | ASTM B637, AMS 5667, AMS 5668, AMS 5671, ISO 9001:2015 |
| Model Number | Alloy X-750 / UNS N07750 |
| Place of Origin | Hunan, China |
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Product Specification
| Manufacturing Process | Seamless Ring Rolling / Open-Die Forging | Elongation | ≥18% |
| Supply Ability | Negotiable | Packaging Details | According to Customers' Requests |
| Height | 50mm - 500mm+ | Hardness | ≤35 HRC |
| Density | 8.28 g/cm³ | Tensile Strength | ≥1170 MPa |
| Heat Treatment | Solution + Aging + Precipitation Hardening | Yield Strength | ≥790 MPa |
| Payment Terms | T/T | Outer Diameter | 100mm - 1500mm+ |
| Delivery Time | (Sample Order) 7 days | Grade | Inconel X-750 / UNS N07750 |
| Brand Name | Dingsco | Certification | ASTM B637, AMS 5667, AMS 5668, AMS 5671, ISO 9001:2015 |
| Model Number | Alloy X-750 / UNS N07750 | Place of Origin | Hunan, China |
| High Light | Alloy X-750 Forging Rings ，UNS N07750 Nickel Forging ，ASTM B637 AMS 5667 Ring | ||
| Grade | Alloy X-750 / Inconel X-750 / UNS N07750 |
| Type | Precipitation-Hardenable Nickel-Chromium Alloy Forging Rings |
| Density | 8.28 g/cm³ |
| Outer Diameter | 100mm - 1500mm+ |
| Height | 50mm - 500mm+ |
| Weight | Several kg to Multiple Tons |
| Manufacturing Process | Seamless Ring Rolling / Open-Die Forging / Closed-Die Forging |
| Heat Treatment | Solution + Intermediate Aging + Precipitation Hardening |
| Standards | ASTM B637, AMS 5667, AMS 5668, AMS 5671 |
Alloy X-750 (UNS N07750) is a precipitation-hardenable nickel-chromium alloy offering exceptional high-temperature strength, creep resistance, and oxidation resistance up to 1500°F (816°C). Through a precisely controlled three-step heat treatment process combining solution treatment, intermediate aging, and precipitation hardening, the alloy achieves its maximum tensile and creep-rupture properties. Widely utilized in aerospace engines, industrial gas turbines, nuclear reactors, and heat treatment equipment, Alloy X-750 forging rings deliver reliable long-term performance under the most demanding thermal and mechanical conditions.
| Element | Ni | Cr | Fe | Ti | Al | Nb | C | Mn | Si | Cu | Co | S |
| % | 70 min | 14.0-17.0 | 5.0-9.0 | 2.25-2.75 | 0.4-1.0 | 0.7-1.2 | 0.08 max | 1.0 max | 0.5 max | 0.3 max | 1.0 max | 0.01 max |
| Property | Value |
| Density | 8.28 g/cm³ |
| Melting Range | 1393 - 1427°C (2540 - 2600°F) |
| Specific Heat (0-100°C) | 431 J/kg·°C |
| Thermal Conductivity (23°C) | 12.0 W/m·K |
| Electrical Resistivity | 1.22 μΩ·m |
| Elastic Modulus | 214 GPa |
| Poisson's Ratio | 0.30 |
| Curie Temperature | -125°C |
| Property | Value |
| Tensile Strength (min) | 1170 MPa |
| Yield Strength (0.2% Offset, min) | 790 MPa |
| Elongation (min) | 18% |
| Reduction of Area (min) | 18% |
| Hardness (max) | HRC 35 |
| Alloy | UNS | PREN | CPT (°C) | CCT (°C) |
| Alloy X-750 | N07750 | ≥ 22 | ~25 | ~15 |
| Alloy 718 | N07718 | ≥ 20 | ~20 | ~10 |
| Alloy 625 | N06625 | ≥ 45 | ~65 | ~45 |
| Alloy C-276 | N10276 | ≥ 63 | ≥85 | ≥70 |
Note: CPT measured per ASTM G48 Method C in 6% FeCl₃ solution. CCT measured per ASTM G48 Method D. PREN = %Cr + 3.3(%Mo) + 16(%N).
| Characteristic | Description |
| ★ High Temperature Strength | Maintains excellent mechanical properties at elevated temperatures up to 816°C, ideal for gas turbine and aerospace engine components. |
| ★ Excellent Creep Resistance | Superior creep-rupture strength under sustained high temperature and high stress conditions, ensuring long-term service reliability in critical applications. |
| ★ Oxidation & Corrosion Resistance | Outstanding resistance to high-temperature oxidation and corrosion in aggressive environments, extending component service life significantly. |
| ★ Precipitation Hardenable | Achieves maximum tensile and creep-rupture properties through precisely controlled solution treatment, intermediate aging, and precipitation hardening heat treatment. |
| ★ Excellent Fatigue Resistance | Demonstrates high fatigue strength under cyclic loading conditions, suitable for rotating aerospace and power generation components. |
| Supply Form | Description |
| Rough Forged Rings | As-forged condition with machining allowance, suitable for customer-side finish machining. |
| Heat Treated Rings | Solution treated, aged and precipitation hardened to achieve specified mechanical properties. |
| Finish Machined Rings | CNC machined to final dimensions with tight tolerances, ready for assembly. |
| Industry | Applications |
| Aerospace | Turbine components, engine parts, rotor components, compressor rings, afterburner parts |
| Power Generation | Gas turbine rings, high temperature fasteners, combustion hardware |
| Nuclear Industry | Reactor internal components, springs, high temperature structural parts |
| Industrial Furnace | Heat treatment fixtures, furnace components, radiant tubes |
| Oil & Gas | Downhole tools, valve components, wellhead parts |
DINGSCO - PROFESSIONAL NICKEL ALLOY MANUFACTURER
QUALITY ASSURANCE:
Our mission is to provide our customers only with the best quality products. As an ISO 9001:2015, PED 2014/68/EC, and API 6A certified manufacturer, we enforce strict quality control at every production stage—from raw material inspection to final dimensional verification.
SCIENCE AND TECHNOLOGY INNOVATION STRATEGY:
We pay close attention to customer needs, implement product innovation, and further leverage the company's full range of product types and material grades to provide customers with one-stop service. Continuous improvement through implementation of material, process, and equipment optimization is our core commitment.
COOPERATION:
We are pleased to help others and glad to acquire the hand of others. We actively participate in team meetings and support decision-making. We share our experience with each other and excel at cooperating with different types of colleagues across global projects.
Dingsco offers a comprehensive range of nickel alloy forging rings in the following grades:
| Alloy | UNS | Key Feature |
| Alloy 718 | N07718 | High strength cryogenic to 704°C |
| Alloy 625 | N06625 | Superior corrosion & oxidation resistance |
| Alloy C-276 | N10276 | Universal corrosion resistance |
| Alloy 400 | N04400 | Marine & chemical processing |
| Alloy K-500 | N05500 | Age-hardenable, high strength |
| Alloy 825 | N08825 | Sulfuric & phosphoric acid service |
| Alloy 600 | N06600 | High temperature oxidation resistant |
| Alloy 601 | N06601 | Oxidation resistance to 1260°C |
Dingsco specializes in providing customized nickel alloy forging solutions tailored to your exact specifications. Our engineering team works closely with customers from design to delivery, offering:
| Custom Service | Capability |
| Non-Standard Dimensions | Custom OD, ID, and height produced to your drawings |
| Special Heat Treatment | Tailored thermal cycles for specific mechanical property requirements |
| Precision Machining | CNC turning, milling, and grinding to micron-level tolerances |
| NDT Services | UT, PT, MT, and radiographic inspection per customer requirements |
| Documentation | EN 10204 3.1 / 3.2 MTC, NACE compliance, third-party witnessed testing |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1998
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications. We have complete advanced technology facilities t... Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications. We have complete advanced technology facilities t...
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