ASTM A240 F904L Flange Super Austenitic Stainless Steel With Good Corrosion Resistance
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Model Number:ASTM A240 F904L
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ASTM A240 F904L Flange
ASTM A240 F904L Flanges are made from the material grade 904L, which is a type of austenitic stainless steel that has better corrosion resistance than standard 304 grade. The 'F' in ASTM A240 F904L indicates that these flanges are of 'fashioned' or 'forged' type.
Here are some characteristics and uses:
Characteristics:
1.High Corrosion Resistance:
2. Good Fabrication Properties:
3. Low Carbon Content:
4. Aesthetic Appearance:
5. Versatility:
The ASTM A240 standard covers the specifications for the types of stainless steel plates, sheets, and strips of sheet metal made of austenitic stainless steel. This includes F904L grade, which is often specified for its excellent corrosion resistance and high temperature strength.
When specifying an ASTM A240 F904L Flange, you should consider factors like pressure rating, size, and the specific application requirements to ensure the best fit and performance.
Chemical Composition
The following data sheet gives SS 904L stainless steel chemical composition.
| Chemical Composition, % | |||||||||||||
| ASTM | UNS | Type | C, ≤ | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Ni | Mo | N, ≤ | Cu | Notes (Product) |
| ASTM A276/A276M | UNS S08904 | 904L | 0.02 | 1.00 | 2.00 | 0.045 | 0.030 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 0.10 | 1.0-2.0 | Bars and Shapes |
| ASTM A240/A240M | Plate, Sheet, and Strip | ||||||||||||
Mechanical Properties
The following table lists 904L stainless steel (SS904L) mechanical properties such as yield strength, tensile strength, elongation and hardness.
| AISI ASTM 904L Steel Mechanical Properties | |||||||
| ASTM | AISI Type | Tensile Strength, MPa (ksi), ≥ | 0.2% Yield Strength, MPa (ksi), ≥ | Elongation in 50 mm (2 in.), %, ≥ | Rockwell Hardness (HRBW), ≤ | Product forms | Conditions |
| ASTM A276/A276M | 904L (UNS N08904) | 490 (71) | 220 (31) | 35 | – | Bars and Shapes | Annealed, Hot-finished or cold-finished |
| ASTM A240/A240M | 490 (71) | 220 (31) | 35 | 90 | Plate, Sheet, and Strip | ||
Designs of flanges:
A wide variety of flange designs are available. They are available
in various shapes and sizes. Some of the popular designs are as
follows:
- Butt weld
- Socket weld
- Captive
- Split
- Square
- Round
- Rectangle etc.
ASTM A240 F904L Flange Super Austenitic Stainless Steel With Good Corrosion Resistance
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