{"id":64630,"date":"2026-11-11T08:10:34","date_gmt":"2026-11-11T08:10:34","guid":{"rendered":"https:\/\/www.kaysuns.com\/?page_id=64630"},"modified":"2026-11-11T08:24:56","modified_gmt":"2026-11-11T08:24:56","slug":"astm-a182-f53-flange","status":"publish","type":"page","link":"https:\/\/www.kaysuns.com\/pt\/stainless-steel-flanges\/astm-a182-f53-flange\/","title":{"rendered":"F53 Flange"},"content":{"rendered":"\t\t
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ASTM A182 F53 Flange<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\tAn ASTM A182 F53 flange<\/strong> is a stainless steel flange<\/a> made from Super Duplex 2507 (UNS S32750 \/ EN 1.4410). It is engineered for high-pressure piping systems that require extreme mechanical strength and superior resistance to chloride-induced corrosion.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Specification Breakdown<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tThe ASTM A182 standard covers forged or rolled alloy steel and stainless steel pipe flanges, forged pipe fittings, and valves intended for use in high-temperature, high-pressure environments.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tGrade F53 is a super duplex stainless steel<\/a> with a chromium content of approximately 25 percent, a nickel content of approximately 7 percent, a molybdenum content of approximately 4 percent, and nitrogen. Its balanced microstructure combines austenitic and ferritic phases, resulting in a yield strength approximately twice that of standard austenitic stainless steels such as 304 or 316.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tAs a professional flange manufacturer, we know how to work with these materials. F53 forgings must be solution-annealed at a temperature of at least 1880\u00b0F (1025\u00b0C) and then rapidly water-quenched to achieve optimal corrosion resistance.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"F53\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Chemical Composition of F53 Flange<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Cr<\/th>\nNi<\/th>\nMo<\/th>\nN<\/th>\nMn<\/th>\nSi<\/th>\nCu<\/th>\nP<\/th>\nC<\/th>\nS<\/th>\nFe<\/th>\n<\/tr>\n<\/thead>\n
24.0 \u2013 26.0<\/td>\n6.0 – 8.0<\/td>\n3.0 – 5.0<\/td>\n0.24 \u2013 0.32<\/td>\n\u2264 1.20<\/td>\n\u2264 0.80<\/td>\n\u2264 0.50<\/td>\n\u2264 0.035<\/td>\n\u2264 0.030<\/td>\n\u2264 0.020<\/td>\nBalance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\tF53 has high chromium, molybdenum, and nitrogen content, and its PREN is greater than 40. This means it meets the \u201csuper corrosion-resistant\u201d standard and can provide long-term, stable service in extremely harsh environments\u2014such as high-concentration seawater and acidic conditions\u2014without corrosion.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tAs long as the carbon content is strictly limited to 0.030% and appropriate heat input and interpass temperatures are maintained, sensitization will not occur in the heat-affected zone of ASTM A182 F53 flanges during the welding process.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tHave a requirement?<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tKaysuns is a professional supplier of F53 flange. Please feel free to contact me if you have any requirements.<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Contact Us For More Information\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tContact Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t
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Mechanical Properties of F53 Flange<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tASTM A182 F53 (UNS S32750) flanges deliver a minimum tensile strength of 116 ksi (800 MPa) and a minimum yield strength of 80 ksi (550 MPa) for sections up to 2 inches (50 mm) thick.This material has approximately twice the strength of standard 300-series austenitic stainless steel, while maintaining good ductility.
Per ASTM A182 \/ A182M requirements, the required mechanical values depend on the section thickness of the forging:\n\n\n\n\n\n\n\n\n
Property<\/th>\nSection Thickness \u2264 2 in. (50 mm)<\/th>\nSection Thickness > 2 in. (50 mm)<\/th>\n<\/tr>\n<\/thead>\n
Tensile Strength (Minimum)<\/td>\n116 ksi (800 MPa)<\/td>\n106 ksi (730 MPa)<\/td>\n<\/tr>\n
Yield Strength, 0.2% Offset (Minimum)<\/td>\n80 ksi (550 MPa)<\/td>\n75 ksi (515 MPa)<\/td>\n<\/tr>\n
Elongation in 2 in. or 4D (Minimum)<\/td>\n15%<\/td>\n15%<\/td>\n<\/tr>\n
Brinell Hardness (Maximum)<\/td>\n310 HBW<\/td>\n310 HBW<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Impact Toughness<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tWhile ASTM A182 does not mandate a universal Charpy V-notch value for F53, industry and offshore specifications typically require a minimum impact energy of 40 J to 50 J at -46\u00b0C (-50\u00b0F) to ensure resistance to brittle fracture in sub-zero environments.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Sour Service Hardness<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tWhen ordered to NACE MR0175 \/ ISO 15156 for hydrogen sulfide (H\u2082S) environments, hardness is strictly capped at 32 HRC (or ~300\u2013310 HBW) to prevent sulfide stress cracking.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Section Thickness Effect<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tThicker forgings (> 50 mm) cool slightly slower during water quenching after solution annealing, which accounts for the slight reduction in minimum guaranteed tensile and yield strengths compared to thinner sections.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Manufacturing Methods for F53 Flange<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Closed-Die Forging<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tOur closed-die forging process involves pressing heated ASTM A182 F53 steel billets into precision dies to produce standard flanges that are close to their final shape. This method is particularly well-suited for high-volume orders of small- to medium-sized parts and ensures a continuous, oriented grain flow in the flanges.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Open-Die Forging<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tFor large-diameter, thick-walled, or custom-designed F53 flanges, we use heavy-duty hydraulic presses for open-die forging. This versatile process refines the internal grain structure and eliminates defects, while meeting the requirements for non-standard dimensions and high-pressure ratings without the need for costly tooling expenses.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Seamless Ring Rolling<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tWe use a seamless ring rolling process to manufacture large-diameter F53 flanges. By rolling open-hole billets between precision rollers, we maximize circumferential strength while minimizing raw material waste, passing these cost savings directly on to you.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Plate Cutting and CNC Machining<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tWhen your project requires rapid delivery of flat blind flanges or low-stress structures, we use certified ASTM A240 UNS S32750 solution-annealed steel plates to precision-cut parts directly. We employ high-precision CNC machining that complies with the ASME B16.5 standard for blind flange applications.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Applications of ASTM A182 F53 Flange<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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