ASTM A182 Forged Material for Flanges
ASTM A182 Forged Alloy & Stainless Steel Flange Materials
ASTM A182 is the standard specification for forged or rolled alloy steel and stainless steel materials used in the manufacture of flanges, forged fittings, valves, and high-pressure components. ASTM A182 forged materials are designed for high-temperature, high-pressure, and corrosive service, making them essential for critical industrial applications.
What Is ASTM A182?
ASTM A182 covers forgings or rolled bars of alloy steel and stainless steel for use in pressure systems. The specification defines chemical composition, mechanical properties, heat treatment, and testing requirements to ensure reliable performance under severe service conditions.
ASTM A182 materials are commonly used for ASME B16.5 and ASME B16.47 flanges.
Flange Type available:
Weld Neck Flanges,Slip on Flange,Blind Flange,Socket weld flange,Spectacle Blind Flanges,Paddle Blank & Spacer
Standard:EN 1092-1,ASME B16.5,ASME B16.47 A& B,ASME B16.48
Face type:Raise Face,Ring Joint
ASTM A182 Flange Common Grades
Alloy grade: ASTM A182 F5, F9, F91, F92, F11, F12, F22
Stainless steel grade: ASTM A182 F304, F304L, F316, F316L,F321,F321H,F317L
Duplex (Super) Stainless steel:ASTM A182 F51,F53,F55
Alloy steel refers to chrome moly alloy steel
Chromium molybdenum steel – often shortened to chrome moly – is a type of low alloy steel used in various industries and applications. And as the name suggests, the two main alloying elements are chromium (Cr) and molybdenum (Mo). These alloys are typically sorted into one main group, with names such as chrome moly, croalloy, chromalloy, and CrMo often used [1]. Industries where the alloy is common include construction, oil and gas, energy, and automotive.
we can supply chrome moly alloy flanges in arrange of alloy grades, sizes and pressure classification. From custom flange face configurations to critical wall pressure ratings, our team can meet your needs.
Common grades we carry include: ASTM/ASME A/SA182 Chrome Moly Pipe Flanges F11 F22 F5 F9 F91
| Trade Name |
Grade
|
UNS #
|
Flanges
|
| 1 1/4 Chrome |
F11 Class 1
|
K11597
|
A182 / SA182
|
| 1 1/4 Chrome |
F11 Class 2
|
K11572
|
A182 / SA182
|
| 1 1/4 Chrome |
F11 Class 3
|
K11572
|
A182 / SA182
|
| 2 1/4 Chrome |
F22 Class 1
|
K21590
|
A182 / SA182
|
| 2 1/4 Chrome |
F22 Class 3
|
K21590
|
A182 / SA182
|
| 5 Chrome |
K41545
|
A182 / SA182
|
|
| 9 Chrome |
K90941
|
A182 / SA182
|
|
| F91 |
K90901
|
A182 / SA182
|
|
| F92 |
F92
|
K92460
|
A182 / SA182 |
Chemical Composition of ASTM A182 Chrome Moly Alloy steel

ASTM A182 Chrome Moly Alloy steel Mechanical Properties &Hardness

ASTM A182 Heat Treatment requirement for Chrome moly steel

Stainless Steel Flange: ASTM A182
ASTM A182 F304 F304L,F316,F316L is most used for stainless steel flange, includes weld neck flange, slip on flange, blind flange, socket weld flange and etc.
Grade 304 / 304L stainless steel has a minimum of 18% chromium and 8% nickel. The only difference between them is the carbon content. Type 304 has a maximum carbon of 0.08% .Type 304L has maximum carbon of 0.030 %.
Grade 316/316L is molybdenum-bearing austenitic stainless steel. The higher nickel and molybdenum content in this grade allows it to demonstrate better overall corrosion resistant properties than 304, especially with regard to pitting and crevice corrosion in chloride environments. In addition, Alloy 316/ 316L provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability. 316L is the lower carbon version of 316 and is immune from sensitization;
Chemical Composition of ASTM A182 Stainless steel

ASTM A182 Stainless steel Mechanical Properties &Hardness

ASTM A182 Heat Treatment requirement for Stainless steel

Duplex stainless steel flange:
ASTM A182 F60 Flanges,UNS S32205 Super Duplex stainless steel 2205 Flanges
ASTM A182 F51 Flanges,UNS S32750 F53 Flanges
ASTM A182 F55 Flanges,UNS S32750 Flanges
Chemical Composition of ASTM A182 Duplex Stainless steel
ASTM A182 Stainless steel Mechanical Properties &Hardness
| Identification Symbol |
UNS Designation |
Grade | Composition, % | ||||||||||
| Carbon | Manganese | Phosphorus | Sulfur | Silicon | Nickel | Chromium | Molybdenum | Columbium | Titanium | Other Elements | |||
| F50 | S31200 | 25 chromium, 6 nickel, modified with nitrogen |
0.03 | 2 | 0.045 | 0.03 | 1 | 5.5–6.5 | 24.0–26.0 | 1.20–2.00 | N 0.14–0.20 | ||
| F51 | S31803 | 22 chromium, 5.5 nickel, modified with nitrogen |
0.03 | 2 | 0.03 | 0.02 | 1 | 4.5–6.5 | 21.0–23.0 | 2.5–3.5 | N 0.08–0.20 | ||
| F52 | S32950 | 26 chromium, 3.5 nickel, 1.0 molybdenum |
0.03 | 2 | 0.035 | 0.01 | 0.6 | 3.5–5.2 | 26.0–29.0 | 1.00–2.50 | N 0.15–0.35 | ||
| F53 | S32750 | 25 chromium, 7 nickel, 4 molybdenum, modified with nitrogen |
0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6.0–8.0 | 24.0–26.0 | 3.0–5.0 | N 0.24–0.32, Cu 0.50 | ||
| F54 | S39274 | 25 chromium, 7 nickel, modified with nitrogen and tungsten |
0.03 | 1 | 0.03 | 0.02 | 0.8 | 6.0–8.0 | 24.0–26.0 | 2.5–3.5 | N 0.24–0.32, Cu 0.20–0.80, W 1.50–2.50 | ||
| F55 | S32760 | 25 chromium, 7 nickel, 3.5 molybdenum, modified with nitrogen and tungsten |
0.03 | 1 | 0.03 | 0.01 | 1 | 6.0–8.0 | 24.0–26.0 | 3.0–4.0 | N 0.20–0.30, Cu 0.50–1.00, W 0.50–1.00 | ||
| F57 | S39277 | 26 chromium, 7 nickel, 3.7 molybdenum |
0.025 | 0.8 | 0.025 | 0.002 | 0.8 | 6.5–8.0 | 24.0–26.0 | 3.0–4.0 | Cu 1.20–2.00, W 0.80–1.20, N 0.23–0.33 | ||
| F59 | S32520 | 25 chromium, 6.5 nickel, 4 molybdenum with nitrogen |
0.03 | 1.5 | 0.035 | 0.02 | 0.8 | 5.5–8.0 | 24.0–26.0 | 3.0–5.0 | N 0.20–0.35, Cu 0.50–3.00 | ||
| F60 | S32205 | 22 chromium, 5.5 nickel, 3 molybdenum, modified with nitrogen |
0.03 | 2 | 0.03 | 0.02 | 1 | 4.5–6.5 | 22.0–23.0 | 3.0–3.5 | N 0.14–0.20 | ||
| F61 | S32550 | 26 chromium, 6 nickel, 3.5 molybdenum with nitrogen and copper |
0.04 | 1.5 | 0.04 | 0.03 | 1 | 4.5–6.5 | 24.0–27.0 | 2.9–3.9 | Cu 1.50–2.50, N 0.10–0.25 | ||
| F65 | S32906 | 29 chromium, 6.5 nickel, 2 molybdenum with nitrogen |
0.03 | 0.80–1.50 | 0.03 | 0.03 | 0.8 | 5.8–7.5 | 28.0–30.0 | 1.5–2.6 | Cu 0.80, N 0.30–0.40 | ||
| F66 | S32202 | 22 chromium, 2.0 nickel, 0.25 molybdenum with nitrogen |
0.03 | 2 | 0.04 | 0.01 | 1 | 1.00–2.80 | 21.5–24.0 | 0.45 | N 0.18–0.26 | ||
| F67 | S32506 | 25 chromium, 6 nickel, 3 molybdenum, with nitrogen and tungsten |
0.03 | 1 | 0.04 | 0.015 | 0.9 | 5.5–7.2 | 24.0–26.0 | 3.0–3.5 | N 0.08–0.20, W 0.05–0.30 | ||
ASTM A182 Duplex stainless steel Mechanical Properties

ASTM A182 Heat Treatment requirement for Duplex Stainless steel

ASTM A182 Forged flange Certification
In addition to the certification requirements of Specification A961/A961M, test reports shall be furnished to the purchaser or his representative. 18.2 Test reports shall include certification that all requirements of this specification have been met. The specification designation included on test reports shall include year of issue and revision letter, if any.
The manufacturer shall provide the following where applicable: 18.2.1 Type heat treatment, Section 7, 18.2.2 Product analysis results, Section 8 of Specification A961/A961M,18.2.3 Tensile property results, Section 9 (Table 3), report the yield strength and ultimate strength, in ksi [MPa], elongation and reduction in area, in percent, 18.2.4 Chemical analysis results, Section 8 (Table 2), 18.2.5 Hardness results, Section 9 (Table 3, and for F23, Tables 2 and 3), 18.2.6 Grain size results, Section 10, and 18.2.7 Any supplementary testing required by the purchase order.
ASTM A182 Forged flange Product Marking
In addition to the marking requirements of Specification A961/A961M, the manufacturer’s name (see Note 3) or symbol shall be permanently marked on each forging. NOTE 3—For purposes of identification marking, the manufacturer is considered the organization that certifies the piping component was manufactured, sampled, and tested in accordance with this specification, and the results have been determined to meet the requirements of this specification.
Quenched and tempered low alloy or martensitic stainless forgings shall be stamped with the letters QT following the specification designation. Forgings repaired by welding shall be marked with the letter “W” following the Specification designation. When repair-welded austenitic stainless steel forgings have not been postweld heat treated in accordance with Table 4, the letters “WNS” shall be marked following the specification designation.
When test reports are required, the markings shall consist of the manufacturer’s symbol or name, the grade symbol, and such other markings as necessary to identify the part with the test report
Related A182 Forged Flanges
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ASTM A182 F304 / F304L Forged Flanges
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ASTM A182 F321 / F321H Forged Flanges
-
A182 F22 Alloy Steel Forged Flanges
-
ASTM A182 F5 Flanges
-
A182 F9 Flanges
-
ASTM A182 F53 / F55 Duplex & Super Duplex Flanges
-
ASTM A182 F904L Austenitic Stainless Steel Flanges
-
ASTM A182 F310S High Temperature Flanges
ASTM A182 forged materials for flanges provide reliable strength, corrosion resistance, and long-term performance in demanding pressure and temperature environments. With a wide range of stainless steel, duplex, and alloy steel grades available, ASTM A182 is the preferred material specification for high-quality forged flanges used worldwide.
For technical support, material selection, and fast delivery, contact a trusted ASTM A182 forged flange material supplier today.
