ASTM A182 F60 SO RF Flange, Super Duplex Stainless Steel Forged Slip-On Raised Face Flange
Brief Introduction
ASTM A182 F60 SO RF Flange is a high-performance super duplex stainless steel forged flange, strictly manufactured in accordance with ASTM A182 and ASME B16.5 standards. F60 (UNS S32205) is a premium super duplex stainless steel grade, featuring a uniform dual-phase microstructure of austenite and ferrite. It integrates ultra-high mechanical strength, excellent corrosion resistance (especially against chloride-induced pitting, crevice corrosion and stress corrosion cracking), and good weldability. As a Slip-On (SO) flange with Raised Face (RF), it is designed for easy installation and reliable sealing, widely applied in harsh, high-corrosion, medium-high pressure industrial piping systems such as offshore, oil & gas, chemical, and desalination fields.
Chemical Composition Analysis (wt%)
| Alloy Grade |
C |
Mn |
Si |
P |
S
|
Cr |
Ni |
Mo |
N |
Fe |
| ASTM A182 F60 (UNS S32205) |
≤0.03 |
≤2.00 |
≤1.00 |
≤0.035 |
≤0.020 |
21.0-23.0 |
4.5-6.5 |
2.5-3.5 |
0.14-0.20 |
Balance |
Typical Mechanical Properties
| Mechanical Property |
Standard Requirement (Min.) |
Typical Value |
| Yield Strength (Rp0.2), MPa |
≥450 |
480-550 |
| Tensile Strength (Rm), MPa |
≥620 |
650-750 |
| Elongation (A), % |
≥25 |
28-35 |
| Hardness (HB), Brinell |
≤290 |
230-280 |
| Impact Toughness (KV), J (-40℃) |
≥60 |
70-100 |
| Ferrite Content, % |
30-70 |
40-60 |
| Max. Working Temperature |
315℃ (Long-term) |
315℃ |
Available 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) |
| errite 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 & Petrochemica |
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 connections |
| 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 |
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