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2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges

China BoYue Industrial (Shanghai)Co., Ltd. certification
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2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges

2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges
2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges 2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges

Large Image :  2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges

Product Details:

Place of Origin: China
Brand Name: BoYue
Certification: ISO,BV,SGS
Model Number: BYOF00005

Payment & Shipping Terms:

Minimum Order Quantity: 1 pcs
Price: Negotiable
Delivery Time: 10-100 days depending on quantity
Payment Terms: L/C, T/T, Western Union
Supply Ability: 40000pcs per month
Detailed Product Description
Name: ASME B16.36 ASTM B564 UNS N08020 Alloy 20 Orifice Flange Orifice Plate Size :: 1/2"-60"
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Product Type: Flange, Disc, Foring, Shaft Sleeves
Material: Nickel Alloy/stainless Steel/duplex Stainless Surface :: Oil Rusted, Yellow
High Light:

orifice plate flange


jack bolt flange

ASME B16.36 Alloy 20 Orifice Flange Orifice Plate ASTM B564 UNS N08020 2'-24' Size


1. Alloy 20 orifice flanges brief introduction


Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. Pairs of pressure "Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary.

Orifice Flanges generally come with either Raised Faces or RTJ (Ring Type Joint) facings. They are, for all intensive purposes, the same as weld neck and slip on flanges with extra machining.

The image on the right shows a set Orifice Flanges, where a Orifice Plate is mounted and a jack screw is machined. This jack screw is used to facilitate separating the flanges for inspection or replacement of the Orifice Plate and gaskets.

The range of orifice flanges covers all standard sizes and ranges, and all common flange materials. Flanges are available in Welding Neck, Slip On, and Threaded form, and are typically supplied with two 1/2" NPT tappings in each flange.


2. Alloy 20 orifice flange dimensioin


RANGE 1" TO 24”

300# FOR WN, SO and threaded flange

600#, 900#, 1500#, 2500# FOR WN FLANGE

FORMS Weld Neck Flanges, Slip On Flanges, threaded flange
STANDARD ANSI B16.36 covers Dimensions and dimensional tolerances from orifice flanges (similar to those covered in ASME b16.5) that have orifice pressure differential connections. Coverage is limited to the following flanges:
Grade Hastelloy: HastelloyB3/B2/X/C/C22/C276/G-30
Inconel: inconel600/625/718/725,
Incoloy: incoloy800/800h/825/925,
Monel: monel400/k500/404,
Nickel: nickel200/201,
Nitronic: Nitronic50/60,
Alloy: Alloy20/28/330/31/33/75, 4J36/1J50/1J79/4J29/4J42,/3J53
Nimonic: nimonic80/80a/90/75, ETC.
Package Wooden case /Wooden crate
Delivery time 40 Days


3. Alloy 20 orifice flange ASTM Specifications


INCOLOY® alloy 20, Carpenter® 20 alloy, 20CB-3®

INCOLOY® is a registered trademark of the Special Metals Corporation group of companies.

Carpenter® and 20CB-3® are registered trademarks of Carpenter.


Alloy 20 is a nickel-iron-chromium based, austenitic alloy with excellent corrosion resistance in chemical environments containing sulfuric acid and many other aggressive media. This alloy is stabilized with niobium to resist intergranular corrosion. Alloy 20 may provide potential cost savings when carefully compared to higher nickel-based alloys, while out performing standard stainless steels.

Industries and Applications

Alloy 20 is used in a variety of industries, including chemical processing, petrochemical and refining, marine, pharmaceutical and food processing. End use applications include storage tanks, mixing tanks, agitators, pump and valve parts, food processing equipment, fasteners and fittings. Applications are limited to a maximum temperature of 1000°F per ASME. It is also important to determine if the necessary corrosion resistance can be achieved within the given environment.


Chemical Composition (%):

Iron Nickel Chromium Copper Molybdenum Manganese Niobium* + Tantalum
Remainder 32.00 to 38.00 19.00 to 21.00 3.00 to 4.00 2.00 to 3.00 2.00 max (8 x C) to 1.00
Silicon Carbon Phosphorus Sulfur      
1.00 max 0.07 max 0.045 max 0.035 max      

*Niobium (Nb) formerly classified as Columbium (Cb).

Applicable Specifications*

Bar B473 SB473
Sheet & Plate B463 SB463
Seamless Pipe & Tube B729 SB729
Welded Pipe B464, B4741 SB464, SB474
Welded Tube B468 SB468


4. Alloy 20 orifice flange are matched with gasket, fasteners, orifice plate

2 -24 Inch Orifice Plate Flange ASTM B564 UNS N08020 , ASME B16.36 Alloy 20 Flanges 0

Product Attribute


Place of Origin China Brand Name BOYUE
Standard ANSI, ISO, ASME, DIN, ASTM Type Orifice Flange
ModelNumber Alloy 20 Thickness #150,#300,#600,.#900,#1500,#2500
Packing Ply-Wood Cases Payment 30%TT+70% Balance


Supply Ability:40000Pieces / per Month

Packaging & Delivery

Packaging Details:Generally plywooden case or following customer's requirement.



Commerce Clause


Minimum Order Quantity: 1pcs
Price: Depending on quantity
Payment Terms: T/T or Western Union or LC
Supply Ability: 40000pcs per month
Delivery Time: 10-100 days depending on quantity




Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)

Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.

Q3: Will my drawing be safe after you get it?
A3: Yes, we will not release your design to third party unless with your permission.

Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.

Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.

Contact Details
BoYue Industrial (Shanghai)Co., Ltd.

Contact Person: david

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