ASTM A182 F5 Alloy Steel Flange Forged Weldneck Raised Face
ASTM A182 F5 Alloy Steel Flange Forged Weldneck Raised Face B16.5
ASTM A182 F5 alloy flange is an alloy steel flange manufactured according to the ASTM A182 standard, which is developed by the American Society for Testing and Materials (ASTM) specifically for high-temperature service alloy steel and stainless steel forged flanges, valve components, bolts, bolts, and other similar forgings.
ASTM A182 F5 belongs to the low-alloy steel grade, with enhanced high-temperature strength, suitable for high-temperature applications. The main chemical components of ASTM A182 F5 alloy flanges include carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), and chromium (Cr).
ASTM A182 Alloy Steel Chemical Composition
|
GRA. |
UNS |
CHEMICAL COMPOSITION % MAXIMUM | |||||||
| C | MN | P | S | SI | CR | NI | MO | ||
| F5 | K41545 | 0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50 | 4.0-6.0 | 0.50 | 0.44-0.65 |
| F9 | K90941 | 0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 8.0-10.0 | --- | 0.90-1.10 |
ASTM A182 Alloy Steel Flange Mechanical Properties
|
GRA. |
UNS |
Tensile Strength,
min, ksi [MPa]
|
Yield Strength, min,
ksi [MPa]B
|
Elongation in 2 in.
[50 mm] or 4D,
min, %
|
| F5 | K41545 | 70 [485] |
40 [275]
|
20
|
| F9 | K90941 |
85 [585]
|
55 [380]
|
20 |
The manufacturing process of ASTM A182 F5 alloy flange includes forging and rolling processes, which ensure the shape and dimensional accuracy of the flange. In terms of heat treatment, ASTM A182 F5 alloy flanges usually require annealing or normalizing and tempering treatment to improve their mechanical properties and corrosion resistance. Annealing: The temperature is usually not lower than 955 ° C, and then the furnace is cooled; Normalization: The temperature should not be lower than 955 ° C, followed by air cooling and tempering treatment (temperature should not be lower than 675 ° C).
ASTM A182 F5 Alloy Steel Flange Key Advantages
- Excellent high-temperature strength and creep resistance
- Good high-temperature oxidation resistance
- Moderate resistance to sulfur corrosion
- Good resistance to sulfide stress corrosion cracking
- Good toughness and ductility
- Proven manufacturing and application experience
ASTM A182 F5 Alloy Steel Flange Main Application
- Petrochemical industry
- Power industry
- The nuclear energy industry
- Paper and food processing industries
- Ship and Ocean Engineering
- Other industrial fields
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