Hunan Dinghan New Material Technology Co., LTD
| Payment Terms | T/T |
| Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days |
| Packaging Details | According to customers' requests |
| Product Name | Nickel-based Alloy Flanges ASTM B564 Inconel 625 UNS N06625 Annealed Forging Flange |
| Material | Nickel-based Alloy |
| Grade | INCONEL,INCOLOY,HASTELLOY,MONEL,Duplex |
| Dimentions | As per your demands |
| Application | Aerospace&Defense,Thermal Processing,Marine,etc |
| Flange Type | WNRF, SORF, BLRF, SWRF, Lap Joint, Threaded, Orifice, Spectacle Blind |
| Face Type | Raised Face, Flat Face, Ring Type Joint |
| Features | High Corrosion Resistance, High Temperature Resistance, Good Mechanical Properties, Excellent Weldability |
| Brand Name | DINGSCO |
| Model Number | According to customers' requests |
| Certification | ISO 9001：2015, PED 2014/68 EU, API 6A, API-20B, TSG, NORSOK |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | Negotiable |
| Delivery Time | (Sample order) 7 days | Packaging Details | According to customers' requests |
| Product Name | Nickel-based Alloy Flanges ASTM B564 Inconel 625 UNS N06625 Annealed Forging Flange | Material | Nickel-based Alloy |
| Grade | INCONEL,INCOLOY,HASTELLOY,MONEL,Duplex | Dimentions | As per your demands |
| Application | Aerospace&Defense,Thermal Processing,Marine,etc | Flange Type | WNRF, SORF, BLRF, SWRF, Lap Joint, Threaded, Orifice, Spectacle Blind |
| Face Type | Raised Face, Flat Face, Ring Type Joint | Features | High Corrosion Resistance, High Temperature Resistance, Good Mechanical Properties, Excellent Weldability |
| Brand Name | DINGSCO | Model Number | According to customers' requests |
| Certification | ISO 9001：2015, PED 2014/68 EU, API 6A, API-20B, TSG, NORSOK | Place of Origin | China |
| High Light | Inconel 625 forged flanges ，ASTM B564 nickel alloy flanges ，high-temperature corrosion-resistant flanges | ||
Inconel 625 is a solid-solution strengthened nickel-based superalloy reinforced primarily with molybdenum and niobium, offering exceptional stability in extreme corrosive environments and high-temperature conditions. Inconel 625 forged flanges are manufactured in strict compliance with ASTM B564 / ASME SB564 standards, with material designation UNS N06625 (German standard 2.4856). They are the preferred connection components for critical piping systems in the chemical, marine, aerospace, and nuclear industries.
Thanks to its unique chemical composition design, Inconel 625 flanges achieve high strength without requiring post-weld heat treatment, while maintaining excellent workability and weldability. They can reliably serve in applications ranging from cryogenic temperatures up to 980°C (1800°F).
Inconel 625 forged flanges are produced and inspected in accordance with the following standards:
| Item | Specification |
|---|---|
| Material Standard | ASTM B564 / ASME SB564 / UNS N06625 / DIN 2.4856 |
| Dimension Standards | ANSI B16.5, ANSI B16.47 Series A&B, MSS SP44, API-605, EN 1092-1, DIN, JIS, etc. |
| Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# (ANSI); PN6-PN64 (DIN/EN) |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Size Range | 1/2" to 36" (custom larger sizes available upon request) |
Inconel 625 is based on a nickel matrix, with precise proportions of various alloying elements to achieve superior comprehensive performance:
| Element | Content (%) | Function |
|---|---|---|
| Nickel (Ni) | ≥58.0 | Base element; provides austenitic stability and fundamental corrosion resistance |
| Chromium (Cr) | 20.0 ~ 23.0 | Forms a dense oxide layer; enhances oxidation and corrosion resistance |
| Molybdenum (Mo) | 8.0 ~ 10.0 | Improves resistance in reducing media; resists chloride-induced pitting |
| Niobium (Nb) | 3.15 ~ 4.15 | Key strengthening element; synergizes with molybdenum to provide high strength without heat treatment |
| Iron (Fe) | ≤5.0 | Controlled to ensure structural stability |
| Carbon (C) | ≤0.10 | Strictly controlled to prevent carbide precipitation affecting corrosion resistance |
| Cobalt (Co) | ≤1.0 | Controlled impurity element |
| Aluminum (Al) / Titanium (Ti) | ≤0.40 | Trace elements for microstructure stabilization |
Core Mechanism: The addition of niobium works synergistically with molybdenum to strengthen the alloy matrix through solid-solution strengthening, enabling Inconel 625 to achieve high strength without requiring precipitation hardening heat treatments.
Inconel 625 forged flanges exhibit excellent strength-toughness balance in the solution annealed condition:
| Property | Room Temperature | At 650°C (1200°F) |
|---|---|---|
| Tensile Strength (Rm) | ≥827 MPa (120 ksi) | ≥760 MPa (110 ksi) |
| Yield Strength (Rp0.2) | ≥414 MPa (60 ksi) | ≥290 MPa (42 ksi) |
| Elongation (A) | ≥30% | ≥55% |
| Hardness | ≤220 HB | — |
Temperature Adaptability: Maintains good tensile and fatigue properties from cryogenic -196°C (-320°F) up to 980°C (1800°F). Non-magnetic (permeability ≤1.0006).
Broad-spectrum Resistance: Excellent resistance to sulfuric, hydrochloric, nitric, and phosphoric acids, as well as mixed acid environments
Localized Corrosion Resistance: Particularly resistant to chloride-induced pitting and crevice corrosion; suitable for seawater, brine, and high-chloride environments
Stress Corrosion Cracking Resistance: Certified to NACE MR-01-75; resistant to sour gas environments containing hydrogen sulfide (H₂S)
Oxidation Resistance: Maintains good oxidation resistance up to 982°C (1800°F)
Melting Range: 1290-1350°C (2350-2460°F); maintains structural integrity up to 1093°C (2000°F)
Creep Resistance: Face-centered cubic crystal structure provides excellent creep and fatigue resistance at elevated temperatures
Thermal Stability: Exhibits only minimal age hardening effects after prolonged service at 550-700°C (1020-1290°F)
Superior Weldability: ERNiCrMo-3 filler metal recommended; maintains stable performance without post-weld heat treatment
Cold & Hot Workability: Moderate hardness after solution treatment (≤220 HB) facilitates machining; hot working recommended above 1200°C (2190°F)
Formability: Elongation up to 50%, combining high strength with excellent plasticity
Inconel 625 flanges can be supplied in different heat treatment conditions based on service requirements:
| Treatment | Temperature Range | Cooling Method | Application |
|---|---|---|---|
| Solution Annealing | 1093-1204°C (2000-2200°F) | Water quench or air cool | Stress relief, enhanced corrosion resistance; standard delivery condition |
| Annealing | 927-1038°C (1700-1900°F) | Air cool or water quench | Improves ductility after cold working |
| Stress Relief | 900°C (1650°F) | Air cool | Relieves residual stresses from welding or cold forming |
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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