Name: ASTM A182 F55 Super Duplex Stainless Steel Blind Flange with Raised Face Class 150 to 1500
Brand: Yuhong Group Co.,Ltd
SKU: F55
Price: 150000.00 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

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ASTM A182 F55 Super Duplex Stainless Steel Blind Flange with Raised Face Class 150 to 1500

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ISO, API , ABS, DNV, GL , LR, NK
Model Number:	F55

Payment & Shipping Terms:

Minimum Order Quantity:	1PC
Price:	Negotiable
Packaging Details:	Wooden Cases
Delivery Time:	7 Days
Payment Terms:	T/T,L/C
Supply Ability:	Depends On Quantity

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Detailed Product Description

Standard:	ASTM A182	Grade:	F55 (UNS S32760)
Type:	Blind Flange (BL), Raised Face (RF)	Pressure Class:	Class 150, 300, 600, 900, 1500
Size Range:	1/2” – 24” (DN15 – DN600)	Surface Treatment:	Pickled & Passivated (P/P), 2B Finish; Polished Finish Optional
Highlight:	Super Duplex Stainless Steel Flange , ASTM A182 F55 Blind Flange , Class 150 to 1500 Raised Face Flange

ASTM A182 F55 BL RF Flange - Super Duplex Stainless Steel Forged Blind Raised Face Flange

ASTM A182 F55 BL RF Flange is a premium super duplex stainless steel forged flange manufactured in strict compliance with ASTM A182 and ASME B16.5 standards. The F55 (UNS S32760) grade features a uniform dual-phase microstructure of austenite and ferrite, delivering exceptional mechanical strength, superior corrosion resistance against chloride-induced pitting, crevice corrosion and stress corrosion cracking, along with excellent weldability.

As a Blind (BL) flange with Raised Face (RF), this component is specifically engineered to terminate, seal, or isolate pipeline ends, providing reliable sealing performance and structural stability. It is widely utilized in demanding industrial piping systems including offshore, oil & gas, chemical processing, and desalination applications.

Chemical Composition Analysis (wt%)

Alloy Grade	C	Mn	Si	P	S	Cr	Ni	Mo	N	Cu	Fe
ASTM A182 F55 (UNS S32760)	≤0.03	≤1.00	≤0.80	≤0.035	≤0.020	24.0-26.0	6.0-8.0	3.0-4.0	0.20-0.30	0.50-1.00	Balance

Typical Mechanical Properties

Mechanical Property	Standard Requirement (Min.)	Typical Value
Yield Strength (Rp0.2), MPa	≥550	580-660
Tensile Strength (Rm), MPa	≥795	800-910
Elongation (A), %	≥25	28-36
Hardness (HB), Brinell	≤310	240-295
Impact Toughness (KV), J (-40℃)	≥60	70-105
Ferrite Content, %	30-70	40-60
Max. Working Temperature	315℃ (Long-term)	315℃

Available Quality Tests

Test Type	Standard
Chemical Composition Analysis (PMI)	Spectrometer (XRF/OES), ASTM E1019
Tensile & Impact Test	ASTM E8/E8M, ASTM A370, Charpy V-Notch
Hardness Test	ASTM E10 (Brinell), ASTM E18 (Rockwell)
Ferrite Number Test	ASTM E1928, Ferrite Scope Test
Hydrostatic/Pneumatic Pressure Test	ASTM A182, ASME B16.5
Non-Destructive Testing (NDT)	UT, RT, MT, PT (ASTM E165), Eddy Current Test
Corrosion Resistance Test	ASTM G48 (Pitting/Crevice Corrosion), Salt Spray Test (ASTM B117)
Dimensional & Visual Inspection	ASME B16.5, CMM, Gauge Inspection
Microstructure Inspection	ASTM E45, Metallographic Microscope Test
Material Test Certificate (MTC)	EN 10204 3.1/3.2

Product Application Scope

Industry Field	Typical Applications
Offshore & Marine Engineering	Offshore platforms, marine pipelines, seawater cooling systems, offshore oil & gas production equipment, marine ballast tanks
Oil & Gas Industry	Oil & gas transmission pipelines, wellhead manifolds, downhole equipment, refinery corrosive process lines, gas storage tanks
Chemical & Petrochemical	Chemical reagent conveying pipelines, acid-base processing systems, petrochemical reactors, corrosive fluid storage tank connections, pharmaceutical chemical equipment
Seawater Desalination	Seawater desalination plant pipelines, reverse osmosis systems, brine treatment pipelines, desalination equipment sealing ends
Desulfurization Systems	Power plant flue gas desulfurization (FGD) pipelines, desulfurization towers, absorber connections, flue gas treatment systems
Other Harsh Environments	Pulp and paper industry, mining, high-chloride wastewater treatment, chemical processing equipment, nuclear power auxiliary systems