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Flanges

Name: Flanges
Brand: Ever Nickel
Price: 99.99 USD
Availability: InStock
Rating: 4.8 (50 reviews)

Steel Flange Production Range–ANSI / ASME Flanges

Size：1/2″(15 NB) to 48″(1200NB)

Standards：ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Pressure Ratings：Class 150, Class 300, Class 400, Class 600, Class 900, Class1500| PN6, PN10, PN16, PN25, PN40, PN64 etc.

Types of Flanges：Weld neck Flanges (WNRF), Slip-on Flanges (SORF), Blind Flanges (BLRF), Lap Joint Flanges(SOLJ), Socket-weld Flanges (SWRF), Screwed (Threaded) Flanges, Long weld neck Flanges (LWNRF), Spectacle Blind Flanges, Spacer & Blind Flanges, Ring Type Joint Flanges (RTJ), Reducing Flanges, Raised Face (RF) Flanges, Orifice Flanges, Large Diameter Flanges, Custom Flanges, Drawing Flanges, Forged Flanges, Plate Flanges, Flat Face Flanges, etc.

Carbon Steel Flanges：ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Flanges：ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L

Alloy Steel Flanges: ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Flanges：Duplex, Super Duplex, Nickel Alloys

Flange Face Type：Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment：Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

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Description
Specification
Standard
Process
Packing

Our industrial flanges are engineered to provide a secure, leak-proof connection point for piping systems, pressure vessels, and heavy machinery. Manufactured through high-quality forging or precision plate cutting, these components are designed to facilitate easy assembly, maintenance, and inspection of critical fluid and gas infrastructure.

1. Common Flange Types

We offer a complete range of configurations to suit various structural and pressure requirements:

Weld Neck (WN):Ideal for high-pressure and extreme temperature applications.

Slip-On (SO):Easy to install; preferred for low-pressure systems.

Blind (BL):Used to seal the end of a piping system or vessel opening.

Socket Weld (SW):Best for small-diameter, high-pressure piping.

Threaded (TH):For systems where welding is not permitted (NPT/BSPT).

Lap Joint (LJ):Used in systems requiring frequent dismantling for cleaning.

Spectacle Blind / Figure-8:For permanent or temporary isolation of pipelines.

2. Technical Specifications & Pressure Ratings

Size Range:1/2" to 120" (DN15 – DN3000).

Pressure Classes (ASME):Class 150, 300, 600, 900, 1500, 2500.

Pressure Ratings (PN/DIN):PN6, PN10, PN16, PN25, PN40, PN64, PN100.

Flange Facings:Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Tongue & Groove (T&G).

3. Material Grades & Standards

We provide flanges in a wide spectrum of materials to match your pipeline's chemical and mechanical needs:

Carbon Steel:ASTM A105, A105N, ST37.2, C22.8.

Stainless Steel:ASTM A182 F304/304L, F316/316L, F321, F310S, F347.

Alloy Steel:ASTM A182 F1, F5, F9, F11, F22, F91.

Low Temperature:ASTM A350 LF2, LF3.

Duplex Steel:ASTM A182 F51, F53, F55, S31803, S32205.

High Yield:ASTM A694 F42, F52, F60, F65, F70.

4. International Manufacturing Standards

All flanges are produced and strictly tested in accordance with global industry requirements:

ASME/ANSI B16.5 / B16.47(Series A & B)

DIN / EN 1092-1(European Flange Standard)

JIS B2220(Japanese Industrial Standard)

MSS-SP-44 / API 6A(High-Pressure Pipeline Flanges)

5. Quality Assurance & Surface Protection

Manufacturing Process:100% Forged (Closed Die or Open Die) to ensure superior grain structure.

Testing:Ultrasonic Testing (UT), Magnetic Particle Inspection (MPI), and Hardness Testing.

Surface Treatment:Anti-rust Oil, Yellow/Black Painting, Hot-dip Galvanized, or Cold Galvanized.

Certification:Fully compliant withMTC (EN 10204 3.1); third-party inspection (SGS, TUV, BV) available upon request.

Packaging:Securely packed in seaworthy plywood cases or on treated wooden pallets with protective caps for the flange faces.

Welding Neck WN Flange Specification:

Standard	Type	Class	Size
ASME B16.5	WN/LWN/SO/Blind/Lap Joint	150#-2500#	1/2"-24"(Except Blind Flange 2500Ib 1/2"-12")
ASME B16.47 Series A	WN/blind flange	150#-900#	22"-48"(Except 900#Size:26"-48")
ASME B16.47 Series B	WN/blind flange	75#-300#	26"-48"
ASME B16.47 Series B	WN/blind flange	400#600# 900#	26"-36"
EN1092-1:2002	Plate flange for welding/loose plate flange with weld-on plate collar or for lapped pipe end/Blind/WN flange	PN2.5-PN100	DN10-DN4000
JIS B2220	Welding Flange,Lap joint flange, threaded flange	PN6-PN100	DN10-DN1500
BS4504 BS10 TableD/E	Plate Flange for welding/WN flange/Blank Flange	PN6-PN100	DN10-DN1500
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)
Coating	Vanish,yellow paint,anti-rust oil,galvanizing etc

WN Flange Material Grades:

Carbon Steel	ASTM IASME A/SA105(N),A350 LF2/LF3,A694 F52,F56,F60,F65,F70
Alloy Steel	ASTM/ASME A/SA 182 F5,F9,F11,F22,F91
Stainless Steel	ASTM/ASME A/SA 182 F304,304L,304H,310H,316,316H, 316L,316LN,316Ti,317,317L,321,321H,347,347H,904L
Duplex and Super Duplex	ASTM/ASME A/SA 182 F44,F45,F51,F53,F55,F60,F61, S31803,S32205,S32550,S31254,SMO254,S32750,S32760,S32950
Nickel Alloy Steel	ASTM/ASME B/SB 564 UNS N02200(NICKEL 200),UNS N04400,(MONEL 400) UNS N08825(INCOLOY 825),UNS N06600(INCONEL600),UNS N06601(INCONEL 601), UNS N06625(INCONEL625),UNS N10276(HASTELLOY C276)
Nickel Alloy Steel	ASTM/ASME B/SB160 UNS N02201(NICKEL201),ASTM B/SB472 UNS N08020(Alloy 20)
Copper Alloy	ASTM/ASME B/SB151 UNS N07060,71500,C70600(CuNi 90/10),C71500(CuNi 70/30)
Titanium	ASTM/ASME B/SB381 Grade 2,Grade 5,Grade 7