How do heat treatment and surface finishing processes contribute to the manufacturing of Incoloy 800 flanges?

Resistance to oxidation and pitting makes these piping components coveted by diverse industries. Incoloy 800 flanges have iron, nickel, and chromium and boast impressive mechanical properties like high tensile strength.

The standard heat treatment is annealing at 982°C after undergoing cold work. This material can also be solution annealed at approx. 980°C. As for typical finishes, these include pickled (hot rolled), hairline, sandblasted, and polished.

These treatments make an Incoloy flanges suitable for heat-treating equipment, nuclear plants, etc. But the flipside is they raise lead times and costs and constrict availability as mills need to undertake additional processes. Following the requisite temperature norms is crucial to avoid grain growth and other deformities during the processing.

ASTM B564 UNS N08800 blind flanges in schedule 5 to XXS

Incoloy 800 flanges

Why is Alloy 800H blind flanges corrosion resistant?

The corrosion resistance of these flanges is enviable –Alloy 800H blind flanges can handle exposure to nitric acids, acetic acids, and chloride ions. These flanges resist oxidation, carburization, nitriding, and sulfidation.

This property stems from its chemical profile. A Werkstoff nr. 1.4876 pipe flanges has a large amount of chromium and beneficial inclusions of copper and titanium. Molybdenum and aluminium also play vital roles.

Manufacturer of Alloy 800 socket weld flange provides NDT and ultrasonic test at affordable price

Incoloy 800 flanges

Incoloy 800 flanges

Alloy 800 flanges

Alloy 800 flanges

Incoloy flange

Incoloy flange

What are some of the disadvantages or limitations of using Alloy 800 flanges in piping systems?

From food processing to furnace equipment, multiple industries depend on these flanges. However, Alloy 800 flanges pose some disadvantages:

  • Expensive due to the higher production cost
  • Complex and tough to machine
  • Mandates careful storing
  • Availability may be limited (it renders procurement difficult and delays project completion)
  • Requires meticulous welding to avoid stress-related cracking

Incoloy 800HT slip on and weld neck flange available in sizes ranging from 1/2 (15 NB) to 48 inch (1200NB)

Specifications of Incoloy 800 flanges

Incoloy 800 flanges specifications

Incoloy 800 flanges size

Incoloy 800 flanges size

  • 1/2″ – 48″ NPS
  • PN 2.5 to PN 400
  • 15NB to 1200NB
Alloy 800 flanges common trade name

Alloy 800 flanges common trade name

  • Incoloy 800®
  • Nickelvac® 800
  • Ferrochronin® 800
  • Nicrofer® 3220

 

Nickel Alloy 800 slip on plate flange

Nickel Alloy 800 slip on plate flange

  • 1/2″ thru 80″
ASTM B564 UNS N08800 blind flange

ASTM B564 UNS N08800 blind flange

  • 1/2″ thru 80″

 

Incoloy Alloy 800 socket weld flange

Incoloy Alloy 800 socket weld flange

  • 1/2″ to 24″
ASTM B564 Inconel 800 threaded flange

ASTM B564 Inconel 800 threaded flange

  • 1/2″ to 24″

 

DIN 1.4876 weld neck flange schedule

DIN 1.4876 weld neck flange schedule

  • 5 to XXS
UNS N08800 lap joint flange working temperatures

UNS N08800 lap joint flange working temperatures

  • 816°C / 1500°F

 

ASTM B564 N08800 plate flanges max. operating temp

ASTM B564 N08800 plate flanges max. operating temp

  • Resistance to sulfur containing atmospheres
Incoloy UNS No 8800 reducing flange suitable for

Incoloy UNS No 8800 reducing flange suitable for

  • 816°C / 1500°F

 

800 Incoloy plate flanges alloy type

800 Incoloy plate flanges alloy type

  • Ni-Fe-Cr
Alloy 800 forgings ASTM standards

Alloy 800 forgings ASTM standards

  • ASTM B462

 

SB 564 UNS N08800 hot forged flange finish

SB 564 UNS N08800 hot forged flange finish

  • Mirror finish / Cold Water Finish
  • Stock Finish – 125- to 250-μin
  • Concentric Serrated
  • Serrated finish
  • Smooth Finish
  • Zinc Plated
  • Spiral Serrated
 ASME SB 564 N08800 forged pipe flange manufacturing methods

ASME SB 564 N08800 forged pipe flange manufacturing methods

  • Turning
  • Milling
  • Drilling
  • Forged
  • Stamping
  • Rolled
  • CNC machining

 

ASTM B564 UNS N08800 flanges melting range

ASTM B564 UNS N08800 flanges melting range

  • 2475 – 2525 °F
  • 1357 – 1385 °C
ASTM B564 N08800 flanges density

ASTM B564 N08800 flanges density

  • 0.287 lb/in.3
  • 7.94 g/cm3

 

WNR 1.4876 Long weld neck flange pressure class

WNR 1.4876 Long weld neck flange pressure class

  • 150#
  • 300#
  • 600#
  • 900#
  • 1500#
  • 2500#
Werkstoff no 1.4876 blank flange marking

Werkstoff no 1.4876 blank flange marking

  • Sizes
  • Manufacturing date
  • ASTM/ ASME standard
  • Origin of material
  • Face type
  • Manufacturers logo / name
  • Pressure class
  • Material grade

 

Incoloy 800 raised face blind flange yield strength

Incoloy 800 raised face blind flange yield strength

  • 170 MPa
Alloy 800 ring type joint blind flange tensile strength

Alloy 800 ring type joint blind flange tensile strength

  • 450 MPa

 

Nickel alloy 800 forged slip on flange meet the requirements

Nickel alloy 800 forged slip on flange meet the requirements

  • NACE MR0175
  • Sour service
  • NACE TM-0284
  • ISO 15156
  • NACE MR0103
Incoloy Alloy 800 threaded slip on flange ASME standard

Incoloy Alloy 800 threaded slip on flange ASME standard

  • ASME B16.36
  • ASME B16.5
  • ASME B16.47
  • ASME B16.20

 

UNS N08800 flat face slip on flange testing requirements

UNS N08800 flat face slip on flange testing requirements

  • Material inspection
  • Impact test
  • Tensile test
  • Visual inspection
  • Hardness test
  • PMI
  • Shell pressure test
Standard

Standard

  • MSS SP-25
  • WNR 1.4876
  • UNS N08800
  • NCF 800
  • ЭИ670
  • NA 15
  • Z8NC32-21
  • XH32T
  • X10NiCrAlTi32-20

 

Faces types

Faces types

  • FF
  • RTJ
  • RF
  • M&F
  • LJ
  • T&G
Threaded flanges

Threaded flanges

  • BSPP
  • FPT
  • MPT
  • FNPT
  • BSP
  • NPT
  • MNPT
  • BSPT

 

Dimensional standards

Dimensional standards

  • ASME
  • BS
  • ANSI
  • EN
  • DIN
800 Incoloy long weld neck flange chemical composition

800 Incoloy long weld neck flange chemical composition

  • C : 0.1 %
  • S : 0.015 %
  • Fe : 39.5 %
  • Mn : 1.5 %

 

Curie temperature

Curie temperature

  • -175 °F
  • -115 °C
Specific heat

Specific heat

  • 0.11 Btu/lb•°F
  • 460 J/kg•°C

 

Thermal conductivity

Thermal conductivity

  • 80 Btu•in/ft2•h•°F
Electrical resistivity

Electrical resistivity

  • 595 ohm•circ mil/ft

 

Price term

Price term

  • FOB, CPT, CIP, CIF, DES, EXW, DDP, FAS, FCA
Package methods

Package methods

  • Plastic bag
  • Wooden case / Custom

 

Heat treatment

Heat treatment

  • Annealing
  • Tempering
  • Quechning
Other services

Other services

  • Hot Dip Galvanized
  • Shot Peening
  • Sand Blasting
  • FBE Coating
  • Epoxy Coating

 

Incoloy 800 flanges types

Incoloy 800 flanges types

  • Incoloy 800 flat face blind flange
  • DIN 1.4876 forged slip on flange
  • Alloy 800 ring type joint slip on flange
  • Nickel alloy 800 reducing flange
  • ASTM B564 N08800 raised face blind flange
  • UNS N08800 orifice plate
  • ASTM B564 UNS N08800 threaded flanges
  • Incoloy Alloy 800 lap joint flanges
  • ASTM B564 Inconel 800 swivel flange
  • Inconel 800 slip on flanges
  • WNR 1.4876 raised face slip on flange
  • Incoloy UNS No 8800 ring spacer flange
  • Werkstoff nr. 1.4876 threaded blind flange
  • SB 564 UNS N08800 flat face slip on flange
  • DIN 1.4876 anchor flange
  • ASME SB 564 N08800 weld neck flanges
  • Alloy 800 ring type joint blind flange
  • DIN 1.4876 flat face weld neck flange
  • Incoloy 800 backing flange
  • ASTM B564 UNS N08800 forged blind flange
  • Nickel alloy 800 LWN flanges
  • Incoloy Alloy 800 threaded slip on flange
  • 800 Incoloy high hub blind flange
  • Incoloy UNS No 8800 ring type joint weld neck flange
  • Inconel 800 expander flange
  • ASME SB 564 N08800 socket weld flanges
  • 800 Incoloy blind flanges
  • SB 564 N08800 spade flange
  • Nickel alloy 800 reducing flange
  • ASTM B564 Inconel 800 long weld neck flange
  • Incoloy 800 raised face weld neck flange
Value added services

Value added services

  • Pickled
  • Heat Treatment
  • Sand Blasting
  • Cutting
  • Threading
  • Minor Fabrication
  • De-burring
  • Forging
  • Fabricate
  • Beveling end
  • Tagging & marking
  • Rolling
  • Drilling
  • Polishing
  • Casting
  • Electroplating
  • Metal stampings
  • CNC machined

 

Nickel Alloy 800H lapped flange with MTC EN 10204 3.1 certificate

Types of Alloy 800 flanges

Alloy 800H blind flanges

Alloy 800H blind flanges

  • Sizes: 1/2 to 60 inch NB
  • Class: 150# to 2500#

Incoloy 800HT slip on flanges

Incoloy 800HT slip on flanges

  • Face type: Ring Type Joint (RTJ), Raised Face (RF), Flat Face (FF)

ASTM B564 UNS N08800 weld neck flange

ASTM B564 UNS N08800 weld neck flange

  • Pressure: PN6 to PN64
  • Standard: ASTM B564 | ASME SB564

Nickel 800H socket weld flange

Nickel 800H socket weld flange

  • ASME standard: ANSI/ASME B16.5
  • Types : Blind, Weld neck, Slip On, Reducing Flange

Werkstoff nr. 1.4876 pipe flange

Werkstoff nr. 1.4876 pipe flange

  • Application: Aerospace, Chemical Processing & Power Generation

ASME SB564 UNS N08811 raised face flanges

ASME SB564 UNS N08811 raised face flanges

  • Production technique: Forged, Heat treated and machined
Buy ASME SB564 UNS N08811 raised face flanges in all types & standards as per ANSI/ASME B16.5, DIN, ISO, JIS etc

Chemical composition of Incoloy flange

Grade C Mn Si Fe S Cr Al-Ti Ni
Incoloy 800 min. 39.5 19.0 0.15 30.0
max. 0.1 1.5 1.0 0.015 23.0 0.60 35.0
Incoloy 800H min. 0.05 39.5 19.0 0.15 30.0
max. 0.1 1.5 1.0 0.015 23.0 0.60 35.0
Incoloy 800HT min. 0.06 39.5 19.0 0.85/0.25 30.0
max. 0.1 1.5 1.0 0.015 23.0 1.20/0.60 35.0

Mechanical properties of ASTM B564 UNS N08800 blind flanges

Grade Tensile Strength (MPa) minimum Yield Strength 0.2% Proof (MPa) minimum Elongation (% in 50 milimeter) minimum Hardness
Rockwell B (HR B) maximum Brinell (HB) maximum
800-H-HT Psi – 75,000 , MPa – 520 Psi – 30,000 , MPa –205 30

Equivalent of Incoloy 800HT slip on flanges

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN OR
Incoloy 800 1.4876 N08800 NCF 800 NA 15 ЭИ670 Z8NC32-21 X10NiCrAlTi32-20 XH32T
Incoloy 800H 1.4958 / 1.4876 N08810 NCF 800H NA 15(H) ЭИ670 Z8NC33-21 X5NiCrAlTi31-20 XH32T
Incoloy 800HT 1.4859 / 1.4876 N08811 NCF 800HT NA 15(HT) ЭИ670 X8NiCrAlTi32-21 XH32T

How does the size of an Incoloy flange affect its performance under different pressures?

The size of the flanges – specifically, their thickness – determines performance under pressure. A thicker nickel 800H socket weld flanges can stand more pressure. It will have a higher flange rating and be heavier also.

You should adjudge the size in light of the heat dissipated while welding. A consistent stress distribution decreases the chance of leakage and performance problems.
It extends the lifespan of the flanges too – a substantial plus for pricey super-alloys like Incoloy !

Besides the size, the type decides the pressure-handling capability. For example, ASME SB564 UNS N08811 raised face flanges focus pressure on the gasket area and make the joint more capable of handling severity.

What is the purpose of using a tongue-and-groove face type for Incoloy 800HT slip on flanges?

This face type is favoured in high-pressure applications where safety is paramount. Incoloy 800HT slip on flanges of this type can work with inflammable or hazardous substances in oil and gas systems, water supply pipes, and structural applications also.

The basic structure involves a tongue and a grooved face (with the gasket). The former has a machined raised ring which mates with the corresponding depression in the latter. The limited contact between the gasket and the media minimizes the likelihood of corrosion. Also, since the gasket does not extrude, the compression area and the necessary bolt force reduces.

What factors contribute to the price difference of ASTM B564 UNS N08800 weld neck flange between India and China?

These flanges are expensive since Incoloy has limited availability and face machining challenges. While procuring an ASTM B564 UNS N08800 weld neck flanges for your application, we advise comparing prices across suppliers.

China and India are among the top providers of these flanges. The prices of Incoloy 800 in India start from Rs. 1,200 a kilogram; Chinese suppliers’ prices are in the ballpark or lower

Other grade list

Global market trends, the availability of raw materials, and regional manufacturing practices decide prices. Shipping of Incoloy 800 plate flanges accounts for some of the price differentials, and vendors with scalable logistical partners offer competitive rates.