Product Overview
Specifications
Key Details
ASTM B564 / ASME SB564
1/2″NB TO 60″NB
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Alloy 20, also known as UNS NO8020 (Carpenter 20), is a nickel-iron-chromium austenitic alloy that was developed for maximum resistance to acid attack, specifically sulfuric acid. This superalloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. Carpenter 20 combines excellent corrosion resistance with elevated mechanical properties and relatively easy fabrication. Although originally designed for use in sulfuric acid related industries, Alloy 20 is now a popular choice for a wide variety of industries including the chemical, food, pharmaceutical, and plastics industries. In addition, this superalloy is used in heat exchangers, mixing tanks, metal cleaning and pickling equipment
Stainless Steel
Werkstoff No.
Density (g/cm3)
Inconel20, Alloy 20, ncoloy 20
WN/LWN/SO/Blind/Lap Joint
1/2"-24"
(Except Blind Flange 2500lb 1/2"-12")
1/2"-3"
(Except 1500# 1/2"-2 1/2")
1/2"-24"
1500# 2500#
1/2"-2 1/2"
ASME B16.47 Series A
WN/blind flange
22"-48"
(Except 900# Size:26"-48")
ASME B16.47 Series B
WN/blind flange
26"-48"
400# 600# 900#
26"-36"
Blind flange
DN10-DN1000
DN10-DN1000
DN10-DN1000
Threaded flange with Neck
Threaded flange with Neck
Threaded flange with Neck
Threaded flange with Neck
Threaded flange with Neck
EN1092-1:2002
Plate flange for welding/
loose plate flange with weld-on plate collar or for lapped pipe
end/Blind Flange/WN flange
PN2.5-PN100
DN10-DN4000
Welding flange,
lap joint flange,
threaded flange
DN10-DN1500
BS4504 BS10 TableD/E
Plate Flange for welding/
WN flange/blank Flange
DN10-DN1500
Other Products
Anchor/swivel/girth/l
ap joint/reducing/orifice
Spectacle blind/paddle blind/
spacer ring/orifice plate/bleed ring
Special Products: rings/
forgings/disc/shaft sleeves
Sealing Surface
RF FF RTJ TF GF LF LM
Flange Face Finish
Stock finish/spiral serrated/
concentric serrated/smooth finish
(Ra 3.2 and 6.3 micrometers)
125-250 AARH(it is called smooth finish)
250-500 AARH(it is called stock finish)
Vanish, yellow paint, anti-rust oil, galvanizing etc
Material Grade
Nickel Alloy Steel
ASTM/ASME B/SB564 UNS N02200(NICKEL 200),
UNS N04400(MONEL 400),
UNS N08825( INCOLOY 825),UNS N06600(INCONEL 600),
UNS N06601(INCONEL 601), UNS N06625(INCONEL 625),
UNS N10675(HASTELLOY C276),
ASTM/ASME B/SB160 UNS N02201(NICKEL 201),
ASTM B/SB472 UNS N08020(Alloy 20)
Copper Alloy
ASTM/ASME B/SB151 UNS C70600(CuNi 90/10),
C71500(CuNi 70/30)
Stainless Steel
ASTM/ASME A/SA182 F304,304L,304H,309H,310H,
316,316H,316L,316LN,
317,317L,321,321H,347,347H
Duplex and Super Duplex Steel
ASTM/ASME A/SA182
F44,F45,F51,F53,F55,F60,F61
Carbon steel
ASTM /ASME A/SA105(N)
Low Temp Carbon Steel
ASTM/ASME A/SA350 LF2
High Yield Carbon Steel
ASTM/ASME A/SA694 F52,F56 F60, F65, F70
Alloy Steel
ASTM/ASME A/SA182 GR F5,
F9, F11,F12,F22,F91
ASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7
• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)
-Half Coupling
-Full Coupling
-Hex Nipple
-Plug-Bushing
-Con Reducer
Alloy 20 Flanges are widely used in various industries including petrochemical, oil and gas, power generation, bulk liquid transportation, chemicals, pharmaceuticals, pulp and paper manufacturing, textiles and others. All our Alloy 20 Flanges are manufactured in accordance with international standards. Alloy 20 Flanges are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All Alloy 20 Flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on Alloy 20 Flanges
CHEMICAL /OIL/GAS/ENERGY ETC.
1.On-Time Delivery
2..Professional sales and technical team .
3.Best quality,competitive price
4.Fast Reply.
5.One-Stop Service,One Single Source.
