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Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments

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Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments

Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments
Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments

Large Image :  Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments

Product Details:
Place of Origin: China
Brand Name: DINGSCO
Certification: ISO 9001：2015, PED 2014/68 EU, API 6A, API-20B, TSG, NORSOK
Model Number: According to customers' requests
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: According to customers' requests
Delivery Time: (Sample order) 7 days
Payment Terms: T/T
Supply Ability: Negotiable
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Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments

Description
Features: High Corrosion Resistance, High Temperature Resistance, Good Mechanical Properties, Excellent Weldability Product Name: Inconel 625 Flanges: High-Performance Solutions For Extreme Environments
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
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High Temperature Resistance Inconel 625 Flanges

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Exceptional Corrosion Resistance Nickel Alloy Flanges

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Superior Mechanical Strength High-Performance Flanges

Inconel 625 Flanges: High-Performance Solutions for Extreme Environments
Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum alloy renowned for its extraordinary strength and superior resistance to corrosion. Inconel 625 flanges are engineered to withstand the most demanding industrial applications, from deep-sea oil extraction to aerospace exhaust systems.
Why Choose Inconel 625 Flanges?
Inconel 625 is a "workhorse" in the specialty metal industry. Unlike standard stainless steel, it maintains its integrity in environments where others fail.
  • Exceptional Corrosion Resistance: Highly resistant to pitting, crevice corrosion, and intergranular attack. It is virtually immune to chloride-induced stress corrosion cracking.
  • High Temperature Stability: Operates effectively from cryogenic temperatures up to 982°C (1800°F).
  • Superior Mechanical Strength: The combination of nickel and chromium, fortified with molybdenum and niobium, provides high fatigue strength and toughness without the need for age-hardening heat treatments.
  • Oxidation Resistance: Excellent resistance to oxidation and scaling at elevated temperatures.
Key Applications
Our Inconel 625 flanges are essential components in industries where safety and durability are non-negotiable:
  • Marine & Offshore: Ideal for seawater piping, propeller blades, and submarine auxiliary motors due to its resistance to salt-water corrosion.
  • Chemical Processing: Used in equipment handling highly acidic media, such as phosphoric acid or sulfuric acid environments.
  • Oil & Gas: Crucial for sour gas (H2S) production and high-pressure wellhead components.
  • Aerospace: High-temperature ducting systems and engine exhaust components.
  • Nuclear Power: Core components and fuel element spacers.
Applicable Standards & Specifications
Material StandardASTM B564 / ASME SB564 / UNS N06625 / DIN 2.4856
Dimension StandardsANSI B16.5, ANSI B16.47 Series A&B, MSS SP44, API-605, EN 1092-1, DIN, JIS, etc.
Pressure Ratings150#, 300#, 600#, 900#, 1500#, 2500# (ANSI); PN6-PN64 (DIN/EN)
Flange TypesWeld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint
Facing TypesRaised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Size Range1/2" to 36" (custom larger sizes available upon request)
Chemical Composition
Inconel 625 is based on a nickel matrix, with precise proportions of various alloying elements to achieve superior comprehensive performance:
ElementContent (%)Function
Nickel (Ni)≥ 58.0Base element; provides austenitic stability and fundamental corrosion resistance
Chromium (Cr)20.0 ~ 23.0Forms a dense oxide layer; enhances oxidation and corrosion resistance
Molybdenum (Mo)8.0 ~ 10.0Improves resistance in reducing media; resists chloride-induced pitting
Niobium (Nb)3.15 ~ 4.15Key strengthening element; synergizes with molybdenum to provide high strength without heat treatment
Iron (Fe)≤5.0Controlled to ensure structural stability
Carbon (C)≤0.10Strictly controlled to prevent carbide precipitation affecting corrosion resistance
Cobalt (Co)≤1.0Controlled impurity element
Aluminum (Al) / Titanium (Ti)≤0.40Trace 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.
Mechanical Properties
Inconel 625 forged flanges exhibit excellent strength-toughness balance in the solution annealed condition:
PropertyRoom TemperatureAt 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).
Key Performance Advantages
Exceptional Corrosion Resistance
  • 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)
Superior High-Temperature Strength
  • 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)
Excellent Workability and Weldability
  • 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
Heat Treatment
Inconel 625 flanges can be supplied in different heat treatment conditions based on service requirements:
TreatmentTemperature RangeCooling MethodApplication
Solution Annealing1093-1204°C (2000-2200°F)Water quench or air coolStress relief, enhanced corrosion resistance; standard delivery condition
Annealing927-1038°C (1700-1900°F)Air cool or water quenchImproves ductility after cold working
Stress Relief900°C (1650°F)Air coolRelieves residual stresses from welding or cold forming
Inconel 625 Flanges: High Temperature Resistance, Exceptional Corrosion Resistance, and Superior Mechanical Strength for Extreme Environments 0

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Alloy Steel Flanges

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