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Super Austenitic Nickel Alloy 926 Flange with Corrosion Resistance for Offshore

China Super Austenitic Nickel Alloy 926 Flange with Corrosion Resistance for Offshore

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Super Austenitic Nickel Alloy 926 Flange with Corrosion Resistance for Offshore

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Packaging Details	According to Customers' Requests
Grade	Incoloy 926
Yield Strength (Rp0.2)	295 N/mm²
Tensile Strength (Rm)	650 N/mm²
Elongation (A5)	35 %
Melting Range	1320-1390 ℃
Form	Bar, Rod, Wire, Forging, Pipe, Tube, Plate, Strip
Payment Terms	T/T
Density	8.1 g/cm³
Delivery Time	7 days (Sample Order)
Standards	ASTM B649, B673, B674, B677, ASME Code Case N453, N454
W.Nr Designation	1.4529
UNS Designation	N08926
Supply Ability	Negotiable
Brand Name	DINGSCO
Place of Origin	China
Model Number	Incoloy 926
Certification	ISO 9001:2015, PED 2014/68/EC, API 6A

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Product Specification


Packaging Details	According to Customers' Requests	Grade	Incoloy 926
Yield Strength (Rp0.2)	295 N/mm²	Tensile Strength (Rm)	650 N/mm²
Elongation (A5)	35 %	Melting Range	1320-1390 ℃
Form	Bar, Rod, Wire, Forging, Pipe, Tube, Plate, Strip	Payment Terms	T/T
Density	8.1 g/cm³	Delivery Time	7 days (Sample Order)
Standards	ASTM B649, B673, B674, B677, ASME Code Case N453, N454	W.Nr Designation	1.4529
UNS Designation	N08926	Supply Ability	Negotiable
Brand Name	DINGSCO	Place of Origin	China
Model Number	Incoloy 926	Certification	ISO 9001:2015, PED 2014/68/EC, API 6A
High Light	Super Austenitic Mo Cu N Alloy ，Pitting and Crevice Corrosion Resistant ，VdTÜV ASME Certified Pressure Vessel

Ally 926 UNS N08926 1.4529 Super Austenitic Nickel Alloy Flange ASTM B649 for Offshore Chemical Equipment

1.Product Attributes

Attribute	Detail
Grade	Dingsco Alloy 926
UNS Designation	N08926
W.Nr Designation	1.4529
Type	Super Austenitic Stainless Steel
Product Form	Flange (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
Density	8.1 g/cm³
Melting Range	1320-1390 ℃
Standards	ASTM B649, B673, B674, B677, B625, ASME Code Case N453, N454
Certification	VdTÜV-196 (400℃), ASME, ISO 9001:2015, PED 2014/68/EC, API 6A

2.Material Overview

Alloy 926 (Dingsco Alloy 926) is a super-austenitic molybdenum stainless steel that exhibits excellent resistance to a variety of highly corrosive environments. The combination of molybdenum (6.0-7.0%) and nitrogen (0.15-0.25%) in its composition provides outstanding resistance to pitting and crevice corrosion, while copper (0.5-1.5%) improves sulfuric acid resistance. Nitrogen addition also enhances yield and tensile strengths. Compared with Dingsco Alloy 1925 LC-Alloy 904L, Alloy 926 offers notably improved mechanical properties and greatly enhanced thermal stability versus alloys with 18% nickel content in the same series.

3.Chemical Composition (Wt.%)

Element	Min	Max
Ni	24.0	26.0
Cr	19.0	21.0
Mo	6.0	7.0
Cu	0.5	1.5
N	0.15	0.25
C	--	0.02
Mn	--	2.0
Si	--	0.5
P	--	0.03
S	--	0.01
Fe	Balance

4.Physical Properties

Property	Value
Density	8.1 g/cm³
Melting Range	1320-1390 ℃
Specific Heat Capacity (20℃)	500 J/kg*K
Thermal Conductivity (20℃)	12.0 W/m*K
Electrical Resistivity (20℃)	0.97 μΩ*m
Modulus of Elasticity (20℃)	195 GPa
Poisson's Ratio	0.31

5.Mechanical Properties (Room Temperature, Solution Annealed)

Property	Value
Tensile Strength (Rm)	650 N/mm²
Yield Strength (Rp0.2)	295 N/mm²
Elongation (A5)	35 %
Brinell Hardness (HB)	≤ 230
Impact Energy (ISO-V)	≥ 100 J (RT)

6.Corrosion Resistance -- CPT / CCT Comparison

Alloy Grade	PREn (PREN)	CPT (°C)	CCT (°C)
316L (1.4404)	25	15	＜0
904L (1.4539)	36	40	20
Alloy 28 (1.4563)	39	50	30
Alloy 926 (1.4529)	47	70	45
Alloy 31 (1.4562)	54	85	65
Alloy 625 (2.4856)	52	90	70

* PREn = %Cr + 3.3 * %Mo + 16 * %N; CPT/CCT tested per ASTM G48 in 6% FeCl₃ solution.

7.Material Characteristics

Exhibits excellent resistance to pitting and crevice corrosion in oxidizing media and acidic environments containing H₂S
Effectively resists chloride-induced stress corrosion cracking (SCC) in practical service conditions
Provides outstanding corrosion resistance in both oxidizing and reducing environments
Mechanical properties are notably improved compared with Dingsco Alloy 1925 LC-Alloy 904L
Thermal stability is greatly enhanced versus alloys with 18% nickel content in the same series
Certified for pressure vessel manufacturing -- VdTÜV-196 (up to 400℃) and ASME certification
PREn value of 47 provides superior pitting resistance in aggressive chloride environments
Good weldability using matching filler metals; suitable for GTAW, SMAW, and SAW processes

8.Product Image Gallery

9.Delivery State & Forms

Product Form	Description
Bar / Rod / Wire	Round, square, hexagonal bars; wire in coils or spools
Forging	Discs, rings, shafts, flanges, custom forgings as per drawing
Pipe / Tube	Seamless and welded; OD 6-610 mm, WT 0.5-50 mm
Plate / Sheet / Strip	Hot rolled / cold rolled; thickness 0.3-100 mm
Flange	Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint -- ANSI B16.5 / EN 1092-1
Fittings	Elbow, tee, reducer, cap, stub end -- butt weld / threaded / socket weld

10.Typical Applications

Fire protection systems, seawater purification systems, hydraulic and injection pipeline systems for marine engineering
Bleach plants in cellulose production
Polished bars for oil & gas wells
Tubing systems for offshore engineering platforms
Pipes, flanges and gas pipeline systems in acidic gas (sour) service
Components for flue gas desulfurization (FGD) systems
Evaporators, heat exchangers, filters and mixing tanks in salt production
Cooling and condensation systems for sulfuric acid processes
Evaporators for brine concentration and crystallization
Piping and pipeline systems in power plant circulating cooling water units
Container packages for transporting corrosive chemicals
Organic biological production with acidic oxide catalysts
Leaching extraction plants in hydrometallurgy

11.DINGSCO -- Professional Nickel Alloy Manufacturer

DINGSCO is a leading manufacturer and supplier specializing in high-performance nickel alloys, super austenitic stainless steels, and corrosion-resistant materials. With decades of metallurgical expertise, we serve customers across the oil & gas, marine engineering, chemical processing, power generation, and desalination industries worldwide.

Certification	Scope
ISO 9001:2015	Quality Management System -- full traceability from melt to finished product
PED 2014/68/EC	Pressure Equipment Directive -- certified for pressure vessel components
API 6A	Wellhead and Christmas Tree Equipment -- certified for oil & gas upstream applications

QUALITY ASSURANCE: Our mission is to provide our customers only with the best quality products. As an ISO 9001:2015, PED 2014/68/EC, 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 drives our material, process, and equipment optimization.

COOPERATION: We are pleased to help others and glad to acquire the hand of others. We actively participate in team collaboration and support decision-making. We share our experience with each other and excel at cooperating with different types of colleagues across global supply chains.

12.Material Selection -- Other Available Grades

Alloy	UNS	W.Nr	Key Feature
Alloy 904L	N08904	1.4539	Standard super austenitic, good general corrosion resistance
Alloy 28	N08028	1.4563	Higher Mo content for enhanced pitting resistance
Alloy 926 ★	N08926	1.4529	Optimal balance of Mo+N+Cu -- PREn 47
Alloy 31	N08031	1.4562	Higher Mo+N for extreme oxidizing/reducing environments
Alloy 625	N06625	2.4856	Nickel-based solid-solution strengthened, excellent fatigue resistance
Alloy C-276	N10276	2.4819	Universal corrosion resistance in severe oxidizing/reducing media
Alloy C-22	N06022	2.4602	Superior resistance to oxidizing acids and mixed acids
Incoloy 825	N08825	2.4858	Ni-Fe-Cr-Mo-Cu alloy for general corrosion and SCC resistance
Alloy 254 SMO	S31254	1.4547	High-Mo super austenitic with PREn ≥ 43

★ Currently selected material. We offer a full portfolio of grades; please contact us for alternative alloy recommendations.

13.Customized Products

DINGSCO provides comprehensive customization services to meet exact customer specifications:

Customization Option	Capability
Non-Standard Sizes	Manufactured to customer drawings and specifications; OD, WT, and length per requirements
Special Flange Types	Orifice flanges, spectacle blinds, long weld neck, reducing flanges, RTJ face
Surface Treatment	Pickling, passivation, electro-polishing, shot blasting, machining finish
Testing & Inspection	PMI, UT, RT, PT, MT, hydrostatic test, IGC (ASTM A262), ferrite measurement
Documentation	EN 10204 3.1 / 3.2 MTC, NACE MR0175/ISO 15156, NORSOK M-650
Third-Party Certification	DNV, BV, LR, ABS, SGS, TÜV -- per project requirements

Payment & Shipping Terms

Term	Detail
Minimum Order Quantity	Negotiable
Price	Negotiable
Packaging Details	According to Customers' Requests
Delivery Time	7 days (Sample Order)
Payment Terms	T/T
Supply Ability	Negotiable

Company Details

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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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Hunan Dinghan New Material Technology Co., LTD
No. 2319, Building 2, Dongfang Furong Garden, No. 582 Yuanda 1st Road, Hehuayuan Street,Furong District, Changsha, Hunan Province, China.
https://www.nickel-basedalloys.com/

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