Incoloy 825 Flanges

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Incoloy 825 Flanges

Incoloy 825 Flanges Manufacturer & Supplier in India

Incoloy 825 Flanges are made of high nickel alloy with chromium, molybdenum and titanium. These flanges are available in various types including slip-on flanges, weld neck flanges, blind flanges and threaded flanges. Incoloy UNS N08825 Pipe Flanges are resistant against corrosion to both reducing and oxidizing media making them perfect for uses in seawater and acid production operations. Incoloy 825 flanges and incoloy 800 flanges are designed to join pipes and equipment securely, whereas Incoloy 825 blind flanges serve the purpose of sealing the end of a pipeline or vessel, either permanently or for temporary shutdowns.

DIN 2.4858 Slip On Flanges, UNS N08825 Long Weld Neck Flanges, Alloy 825 flanges, ASTM B564 Incoloy 825 Blind Flanges, Incoloy® Alloy 825 Ring Type Joint Flanges, ANSI B16.5 Incoloy 825 Weld Neck Flange, Flange Alloy 825, Incoloy 825 Flanges Supplier in Mumbai, India.

Kalpataru Piping Solutions is a leading manufacturer and supplier of high-quality Incoloy 825 flanges offering a wide range of sizes generally from ½ inch to 48 inches in diameter serving to different industrial requirements. We ensure compliance with international standards like ASTM B564 and ASME B16.5 and provide full certifications including manufacturer test certificates and third-party inspection reports. Our aim is to satisfy the customers with competitive pricing, on time deliveries and tailored solutions for specific project requirements for optimal performance in critical operations.

BS4504, BS 10 Incoloy 825 Plate Flanges, DIN 2.4858 Lapped joint Flange, EN 1092-1 Incoloy 825 Pipe Flanges Manufacturers, ASME B16.5 Incoloy® 825 Socket Weld Flanges, Alloy 825 Flanges, UNS N08825 Threaded Flanges, ASME SB564 Alloy 825 Flanges Exporters in India.

Our Incoloy 825 Flanges has an elevated ductile-to-brittle impact transition temperature. As a result, unbeaten bending and forming for Incoloy 825 Lap Joint Flanges is aided by low forming speeds, preheating to 250°F to 400°F, and edge preparation. Incoloy 825 Ring Type Joint Flanges is an elevated chromium ferritic product by means of having excellent oxidation resistance and elevated temperature corrosion. The resistance to cyclic oxidation in Inconel 825 Spacer Flanges is equivalent to or superior, yet by means of lower potency at high temperatures.
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Table of Contents

Standard specification of Incoloy 825 Flanges

Incoloy 825 Flanges are manufactured to meet a variety of international standards and specifications, ensuring compatibility and performance across multiple industries. Below are the key specifications and standards for Incoloy 825 Flanges:
ASME B16.5 Nickel Alloy 825 Flange Sizes
  • 1/2″ to 48″
  • 15 NB to 1200NB
  • DN10~DN5000
  • Custom as per drawing
  • Equal and Reducing Configurations
Manufacturing Standard of Incoloy 825 Flanges BS4504, JISB2220, DIN, API7S-43, AWWA, EN-1092, GOST12820, B2220, ISO70051, KS NFE29203, DIN, BS10, UNI2276, ANSI, BS1560-3.1, JIS GOST, SABS1123, B1503, API605, EN, ASME B16.36, ASME B16.48, API7S-15, MSS SP44, ASME B16.5, ASME B16.47 Series A/B, BS
Pressure Class of Incoloy 825 Flanges 600LBS, 900LBS, 300LBS, 1500LBS, 150LBS, 2500LBS
ASTM B564 UNS N08825 Flange Pressure Calculation in DIN/ UNI/ EN 25Bar, 10Bar, 16Bar, 40Bar, 6Bar
JIS 5K, 20K, 63K, 16K, 30K, 40K, 10K
PN PN40, PN16, PN6, PN10, PN25, PN64
Manufacturing types Plate, Casting, Forged, Threaded, Screwed, Heat-treated, machined
Test Certificates provided by Incoloy 825 Flanges manufacturers in India
  • 100% Radiography Test Report
  • EN 10204/3.1B MTC
    EN 10204 3.1 / EN 10204 3.2
  • Raw Materials Certificate
  • NACE MR0103
  • NACE MR0175
  • Third Party Inspection Report as per client request
Incoloy Alloy 825 Flange Face and Connect Types Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Groove, Large Tongue & Groove, Flat Face (FF), Large Male-Female (LMF), Raised Face (RF), Ring Type Joint (RTJ)
Our distributors of Incoloy 825 Flanges Nagpur, Coimbatore, Singapore, Khobar, Thane, Shah Alam, India, Courbevoie, Navi Mumbai, Ernakulam, Kanpur, Jamshedpur, Vapi, Caracas, Karachi, Nashik, London, Kuala Lumpur, Kolkata, Houston, Port-of-Spain, Lagos, Abu Dhabi, Ranchi, Ahvaz, Bhubaneswar, Brisbane, Hyderabad, Jakarta, Dubai, Bogota, Tau, Jaipur, Ahmedabad, Pune, Pimpri-Chinchwad, Panipat, Indore, Noida, Agra, Bangalore, Surat, Istanbul, Gujarat, Muscat, Dammam, Vadodara, Kuwait, Sharjah, Mexico, Baroda, Chennai, New Delhi, Seoul, Janeiro, Mysuru, Lucknow, Thiruvananthapuram, Vung Granada, Manama, Bengaluru, Gurgaon, Kochi, Ankara, Calgary, Santiago, Doha, Ludhiana, Sydney, Gimhae-si, Rajkot, Mumbai, Dhaka, Howrah, Melbourne, Perth, Riyadh, Tehran, Montreal, Patna
Testing provided by Incoloy 825 Flanges manufacturers
  • Direct-reading Spectrograph of Nickel Alloy 825 Blind/ Sorf Flange
  • Hydrostatic testing machine
  • Incoloy 825 Pipe Flange X-ray detector
  • UI trasonic flaw detector
  • ASTM B564 UNS N08825 Flanges Magnetic particle detector

Forms of Incoloy 825 Flanges (Weld Neck, Blind, Slip On, Orifice)

Incoloy Alloy 825 Flanges are available in a variety of types, each designed to meet specific application requirements.

Equivalent Material Grades of Incoloy 825 Flanges

This table helps to cross verify Incoloy 825 Flanges across major international standards.
GRADE WERKSTOFF NR. UNS BS GOST EN OR JIS AFNOR
Incoloy 825 2.4858 N08825 NA 16 ЭП703 NiCr21Mo XH38BT NCF 825 NFE30C20DUM

ASTM B564 Incoloy 825 Forged Flanges Dimension Table

The dimensional chart below provides various sizes of Incoloy 825 Flanges. These dimensions are essential for ensuring proper fit and performance in industrial applications.
NPS (inches) No. Of Bolts Bolts Dia (inches) Bolt Circle (inches) Dia Of Flange (inches) Dia Of Bolt Holes (inches)
2 8 5/8 5 6-1/2 0.75
20 24 1-1/4 27 30-1/2 1.38
1/2 4 1/2 2-5/8 3-3/4 0.62
14 20 1-1/8 20-1/4 23 1.25
3 8 3/4 6-5/8 8-1/4 0.88
1-1/4 4 5/8 3-7/8 5-1/4 0.75
18 24 1-1/4 24-3/4 28 1.38
8 12 7/8 13 15 1
1-1/2 4 3/4 4-1/2 6-1/8 0.88
16 20 1-1/4 22-1/2 25-1/2 1.38
2-1/2 8 3/4 5-7/8 7-1/2 0.88
10 16 1 15-1/4 17-1/2 1.12
4 8 3/4 7-7/8 10 0.88
24 24 1-1/2 32 36 1.62
1 4 5/8 3-1/2 4-7/8 0.75
3-1/2 8 3/4 7-1/4 9 0.88
5 8 3/4 9-1/4 11 0.88
12 16 1-1/8 17-3/4 20-1/2 1.25
3/4 4 5/8 3-1/4 4-5/8 0.75
6 12 3/4 10-5/8 12-1/2 0.88
1/4 4 1/2 2-1/4 3-3/8 0.62

Nickel Alloy 825 Flanges Sizes & Stock Availability

We maintain a wide variety of Incoloy Alloy 825 Flanges in stock, covering an extensive range of sizes and ratings. 

Rating

In Stock

Dimension Standard

Size Range

Class 150 to 2500 Lbs

Incoloy Flanges, Incoloy 825 Flanges, Weld Neck Flanges, Socket Weld Flanges, Lap Joint Flanges, Orifice Flanges, Tongue & Groove Flanges, Blind Flanges, Threaded Flanges, Slip-On Flanges, Spectacle Flanges, Plate Flanges

ASME / ANSI B16.5 Flanges

1/2” to 24”

–

–

ASME B16.47 / API 605 Flanges

26” to 60”

Class 300 to 2500 Lbs

ASME / ANSI B16.36 Flanges

1” to 24”

 

Class 150 to 2500 Lbs

ASME B16.48 / API 590 Flanges

1/2” to 24”

 

Class 150 to 900 Lbs

MSS-SP-44 Flanges

12” to 60”

 

Class 150 to 600 Lbs

BS 3293 Flanges

26” to 48”

 

2000 Psi to 20000 Psi

API 6A Flanges

2 1/16” to 30”

 

PN6 to PN 160

DIN Flanges

DN10 to DN3600

 

Difference Between Incoloy 825 RF, FF & RTJ Flange Face Types

The different types of flange faces are designed for specific pressure, temperature and sealing requirements. Below is a comparison highlighting the key differences between these types of flanges. 

Description

FF – Flat Face

RF – Raised Face

RTJ – Ring Type Joint

Pressure Range

Low pressures

Broad

Used for higher pressures.

Gasket Type

Soft, Non-metallic

Non-metallic, Semi-metallic

Hard, Metal

Sealing Face

ID to OD

ID to raised face OD

Groove in flange face

Sealing Area

Large

Medium

Small

Class

125lbs, 250lbs

All

All, Generally ≥ 900 lbs

Temperature Range

Low temperatures

Broad

Broad

UNS N08825 Flanges ASTM & ASME Standard Classes

The standard chart of classes provides the specifications for various sizes and classes of UNS N04400 Blind Flanges. 

Standard

Diameter

Class

Number of Bolts

Bolt Size

Bolt Circle Diameter

Diameter of Bolt Hole

ANSI B16.5 Flanges

121

ANSI 900 Flanges

4

19

83

22

 

95

ANSI 300 Flanges

4

13

67

16

 

121

ANSI 1500 Flanges

4

19

83

22

 

89

ANSI 150 Flanges

4

13

60

16

 

95

ANSI 600 Flanges

4

13

67

16

AS 2129 Flange

95

Table F Flanges

4

13

67

14

 

95

Table D Flanges

4

13

67

14

 

95

Table C Flanges

4

13

67

14

 

114

Table H Flanges

4

16

83

17

 

95

Table E Flanges

4

13

67

14

 

114

Table J Flanges

4

16

83

17

AS4087 Flanges

95

PN14 Flanges

4

M12

67

14

ISO 7005 (DIN) Flange

90

PN20 Flanges

4

M14

60.5

16

 

95

PN10 Flanges

4

M12

65

14

 

80

PN6 Flanges

4

M10

55

11

 

95

PN16 Flanges

4

M12

65

14

 

95

PN40 Flanges

4

M12

65

14

 

95

PN25 Flanges

4

M12

65

14

HS Code of WNR 2.4858 Incoloy 825 Flanges

The Harmonized System (HS) Code is an internationally standardized system for classifying traded products. Below is the HS Code for Incoloy 825 Flanges, which is used for customs and international shipping.
Grade HS Code
Inconel 825 Flanges 73079190

Class 150–900 Incoloy 825 Pipe Flange Dimensions

Incoloy 825 Flanges

Testing & Inspection of Alloy 825 Flanges

The testing and inspection of Alloy 825 Flanges are crucial to ensure their integrity, reliability, and performance in various industrial applications.

  • Flaring Test: The flaring test assesses the structural integrity of the flange under extreme stress. It creates an axial increment at a designated angle in the way of deformation
  • Intergranular Corrosion Test: The intergranular corrosion test assesses the intergranular integrity of Alloy 825 to facilitate its adoption into context where intergranular corrosion exists.
  • Hardness Test: The hardness test assesses how resistant the material is to indention. This is an important indication of material strength/durability.
  • Positive Material Identification: This test uses newer techniques such as X-ray fluorescence (XRF) to ensure the alloy composition and meet situational specifications.
  • Mechanical Testing: This refers to tensile test, impact test, and fatigue tests, just to name a few, and used to assess the mechanical properties of Alloy 825 to meet the applicable standard.
  • Dye Penetrant Testing: A non-destructive test uses dye to identify surface cracks and defects as an indicator of leakage.
  • Flattening Test: A test assesses material to retain its effectiveness if rolled flat and ensure there will not be crackage.
  • Eddy Current Testing: A non-destructive test to identify surface and near surface defects through induced electrical current and measuring the response.

DIN 2.4858 Incoloy 825 Flange Type Codes

The list below maps DIN 2.4858 (Incoloy 825 flanges) type codes to their standard descriptions used in procurement and drawings. Use these codes to quickly identify the required flange form during specification, RFQs and documentation.
Type Code Flange Type / Description
101 Nickel Alloy 825 Plate flange for welding
102 Incoloy 825 Loose plate flange with weld on plate collar
104 Alloy 825 Loose plate flange with weld-nut collar
105 Incoloy Alloy 825 Blank flange
111 Nickel Alloy 825 Weld neck flange
112 Incoloy 825 Hubbed slip-on flange for welding
113 Alloy 825 Hubbed threaded flange
121 Incoloy Alloy 825 Integral flange

Dimensional Chart of ASTM B564 Alloy 825 Flanges

Below are standard flange dimensions for ASTM B564 Alloy 825, covering nominal pipe sizes with corresponding bolt counts and key diameters. This chart helps to verify compatibility during design, procurement, and QA checks. 

NPS (inches)

No. Of Bolts

Bolts Dia (inches)

Bolt Circle (inches)

Dia Of Flange (inches)

Dia Of Bolt Holes (inches)

2

8

5/8

5

6-1/2

0.75

20

24

1-1/4

27

30-1/2

1.38

1/2

4

1/2

2-5/8

3-3/4

0.62

14

20

1-1/8

20-1/4

23

1.25

3

8

3/4

6-5/8

8-1/4

0.88

1-1/4

4

5/8

3-7/8

5-1/4

0.75

18

24

1-1/4

24-3/4

28

1.38

8

12

7/8

13

15

1

1-1/2

4

3/4

4-1/2

6-1/8

0.88

16

20

1-1/4

22-1/2

25-1/2

1.38

2-1/2

8

3/4

5-7/8

7-1/2

0.88

10

16

1

15-1/4

17-1/2

1.12

4

8

3/4

7-7/8

10

0.88

24

24

1-1/2

32

36

1.62

1

4

5/8

3-1/2

4-7/8

0.75

3-1/2

8

3/4

7-1/4

9

0.88

5

8

3/4

9-1/4

11

0.88

12

16

1-1/8

17-3/4

20-1/2

1.25

3/4

4

5/8

3-1/4

4-5/8

0.75

6

12

3/4

10-5/8

12-1/2

0.88

1/4

4

1/2

2-1/4

3-3/8

0.62

Weight Chart for Incoloy 825 Slip On & Blind Flanges

Below are standard flange dimensions for ASTM B564 Alloy 825, covering nominal pipe sizes with corresponding bolt counts and key diameters. This chart helps to verify compatibility during design, procurement, and QA checks.
NPS (inches) No. Of Bolts Bolts Dia (inches) Bolt Circle (inches) Dia Of Flange (inches) Dia Of Bolt Holes (inches)
2 8 5/8 5 6-1/2 0.75
20 24 1-1/4 27 30-1/2 1.38
1/2 4 1/2 2-5/8 3-3/4 0.62
14 20 1-1/8 20-1/4 23 1.25
3 8 3/4 6-5/8 8-1/4 0.88
1-1/4 4 5/8 3-7/8 5-1/4 0.75
18 24 1-1/4 24-3/4 28 1.38
8 12 7/8 13 15 1
1-1/2 4 3/4 4-1/2 6-1/8 0.88
16 20 1-1/4 22-1/2 25-1/2 1.38
2-1/2 8 3/4 5-7/8 7-1/2 0.88
10 16 1 15-1/4 17-1/2 1.12
4 8 3/4 7-7/8 10 0.88
24 24 1-1/2 32 36 1.62
1 4 5/8 3-1/2 4-7/8 0.75
3-1/2 8 3/4 7-1/4 9 0.88
5 8 3/4 9-1/4 11 0.88
12 16 1-1/8 17-3/4 20-1/2 1.25
3/4 4 5/8 3-1/4 4-5/8 0.75
6 12 3/4 10-5/8 12-1/2 0.88
1/4 4 1/2 2-1/4 3-3/8 0.62

Temperature & Pressure Rating of Incoloy 825 Flanges (Class 150/300)

Values shown reflect standard Class 150 ratings; include alongside your design factors and gasket/bolting selections when finalizing specs.

Temp (°C)

Class 150

Temp (°F)

Class 150

300

10.2

500

170

400

6.5

750

95

500

2.8

950

35

100

17.7

-20~100

290

425

5.5

800

80

538

1.4

1000

20

150

15.8

200

260

325

9.3

600

140

475

3.7

900

50

200

13.8

300

230

375

7.4

700

110

250

12.1

400

200

350

8.4

650

125

450

4.6

850

65

Nickel 825 Flanges Welding Consumables & Procedures

Use the table below to pick commonly used consumables for fabricating or repairing Nickel 825 plate flanges.

Category

Consumable

WELDING ELECTRODES

Welding Electrode 112

WELDING ELECTRODES

Welding Electrode 686CPT

FILLERS

Filler Metal 625

FILLERS

Filler Metal 686CP

Pressure Ratings of Alloy 825 Flanges by Class

Use the table below to compare general pressure limits for Nickel Alloy 825 flanges across common temperatures, expressed in both psi and MPa. Apply these values with your design factors, gasket/bolting choices, and code requirements before finalizing a rating.

Class

100°F (37.8°C)

200°F (93.3°C)

400°F (204.4°C)

600°F (315.6°C)

800°F (426.7°C)

150

285 psi (2.0 MPa)

270 psi (1.9 MPa)

240 psi (1.7 MPa)

210 psi (1.4 MPa)

185 psi (1.3 MPa)

300

740 psi (5.1 MPa)

700 psi (4.8 MPa)

620 psi (4.3 MPa)

540 psi (3.7 MPa)

480 psi (3.3 MPa)

600

1480 psi (10.2 MPa)

1370 psi (9.4 MPa)

1240 psi (8.6 MPa)

1080 psi (7.5 MPa)

960 psi (6.6 MPa)

900

2220 psi (15.3 MPa)

2050 psi (14.1 MPa)

1840 psi (12.7 MPa)

1620 psi (11.1 MPa)

1440 psi (9.9 MPa)

Applications of UNS N08825 Flanges in Industry

UNS N08825 (Alloy 825) flanges are used where corrosion resistance and high-temperature stability are critical.

  • Acidic Environments
  • Seawater
  • Sour Gas
  • Chemical Processing
  • Oil and Gas
  • Offshore Drilling
  • Nuclear Fuel Reprocessing
  • Marine & Ship Building
  • Power Generation

DIN WNR 2.4858 Blind Flange Chemical Composition

Prefer these ranges for grade verification, MTC review and to confirm corrosion-resistant performance in chloride, acid, and sour-service environments.

Element

Name

Composition

C

Carbon

0.05 max

Mn

Manganese

1.00 max

Si

Silicon

0.5 max

S

Sulfur

0.03 max

Cu

Copper

1.50 – 3.00

Fe

Iron

22.00 min

Ni

Nickel

38.00 – 46.00

Cr

Chromium

19.50 – 23.50

Mechanical Properties of ASTM B564 Incoloy 825 Flanges

Use the table below to reference typical room-temperature mechanical properties for Alloy 825 flanges as supplied to ASTM B564.

Grade

Tensile Strength

Yield Strength (0.2% Offset)

Elongation

825

80,000 psi / 550 MPa

32,000 psi / 220 MPa

30%

Physical Properties of Alloy 825 Orifice & Reducing Flanges

The table shows basic mechanical properties typical physical reference for Alloy 825 orifice and reducing flanges at room temperature. 

Property

Value

Yield Strength

310 MPa (45 ksi)

Density

8.1 g/cm³ (8100 kg/m³)

Poisson’s Ratio

0.3

Elongation

40–50%

Melting Point

1375°C (2507°F)

Other Available Stock of ASTM B564 Incoloy 825 Flanges

  • Incoloy 825 WNRF Flanges Dealer
  • Alloy 825 Spectacle Blind Flanges Stockist
  • Incoloy Alloy 825 Long Weld Neck Flanges
  • ASME SB564 Incoloy 825 RTJ Flanges Supplier
  • ANSI/ ASME B16.5 Incoloy 825 Blind Ring Flanges
  • B564 Incoloy 825 BLRF Flanges Distributors
  • Nickel Alloy 825 Lap Joint Flanges Trader
  • SB564 Incoloy 825 LJRF Flanges Manufacturer
  • Incoloy 825 Slip-on Raised Face Flanges
  • Incoloy 825 SORF Flanges Stockholder
  • B564 Incoloy Alloy 825 Screwed Flanges
  • ANSI B16.5 Incoloy 825 SWRF Flanges
  • Incoloy® Alloy 825 Reducing Flanges Stock
  • Incoloy 825 Tongue & Groove Flanges
  • Incoloy 825 EN 1092-1 Flanges in Mumbai
  • Incoloy 825 ASME/ANSI B16.5 Flanges
  • ASTM B564 Incoloy 825 Weldoflange
  • Grade 825 Incoloy Raised Face Flanges
  • SB564 Incoloy 825 Blind Raised Face Flange
  • Incoloy® 825 Forged Flanges Wholesaler
  • B16.5 Incoloy 825 Expander Flanges
  • Incoloy 825 Ring Spacers (Paddle Spacers)
  • Incoloy 825 Male & Female Flanges
  • B564 Incoloy 825 Flat Face Flanges
  • Incoloy 825 Flat Flanges Exporter
  • Alloy UNS N08825 Flanges
  • Incoloy DIN 2.4858 Flange
  • Incoloy 825 High Hub Blind Flanges
  • Incoloy 825 ASME B16.5 Loose Flanges
  • Incoloy 825 BS 4504 Flanges
  • Incoloy 825 DIN Flanges in India
  • Nickel Alloy 825 Flanges in Supplier

Suppliers and Exporters of Incoloy 825 ASME, ASTM, DIN, BS, EN Flanges in Countries Like

Qatar, Nigeria, Singapore, Bangladesh, Chile, Bahrain, Gambia, Belgium, Canada, Peru, Mexico, Colombia, Nepal, Poland, Nigeria, srilanka, Tibet, Serbia, Lebanon, China, Saudi Arabia, malaysia, Azerbaijan, Kuwait, South Africa, Ghana, Sri Lanka, Chile, India, New Zealand, Bolivia, Ecuador, Slovakia, Yemen, Kazakhstan, Japan, Croatia, Kenya, Bhutan, Puerto Rico, United States, Portugal, Taiwan, thailand, Mongolia, Philippines, Brazil, Ireland, Trinidad & Tobago, Jordan, Hong Kong, Netherlands, Libya, Algeria, Venezuela, Sweden, Germany, Costa Rica, Vietnam, brazil, Estonia, Thailand, Turkey, Spain, Italy, Iran, Gabon, Morocco, United Kingdom, Switzerland, Bulgaria, Denmark, France, Argentina, Czech Republic, Australia, Indonesia, Iran, Tunisia, Israel, Malaysia, Ukraine, South Korea, Zimbabwe, Norway, Lithuania, Romania, Oman, Macau, Mexico, Afghanistan, United Arab Emirates, Hungary, Austria, mexico, Greece, Russia, Namibia, cyprus, Egypt, Finland, Belarus, Poland.

FAQ’s About Incoloy 825 Flanges

INCOLOY 825 is a nickel-iron-chromium alloy designed for excellent resistance to acids, corrosion, and high-temperature environments, widely used in chemical processing and marine applications.
INCOLOY 825 offers superior resistance to acidic and corrosive environments due to its added molybdenum and copper, while INCOLOY 800 is designed mainly for high-temperature stability and oxidation resistance.
INCOLOY 825 can typically withstand temperatures up to 540°C (1000°F) while maintaining mechanical strength and corrosion resistance.
INCOLOY 825 is heat treated through stabilizing annealing, where the alloy is heated and rapidly cooled to enhance corrosion resistance, stabilize its microstructure, and improve overall performance.

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