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What are the applications of ASTM B649 F904L stainless steel flange?
ASTM B649 F904L stainless steel flanges are widely used in industries that require excellent corrosion resistance, such as chemical processing, petrochemical, pharmaceutical and offshore applications. These flanges are designed for use in environments containing chlorides and other corrosive substances.
What are the advantages of ASTM B649 F904L stainless steel flange?
Advantages of ASTM B649 F904L stainless steel flanges include excellent corrosion resistance (especially in chloride-rich environments), excellent durability and strength, resistance to pitting and crevice corrosion, and suitability for high temperature applications. These flanges provide reliable and leak-free connections in various industries.
What is ASTM B649 F904L stainless steel flange?
ASTM B649 F904L Stainless Steel Flanges are pipe flanges made from stainless steel grade ASTM B649 F904L. F904L is a high-performance austenitic stainless steel with excellent corrosion resistance, especially in corrosive environments such as chloride-containing solutions.
F904L Flange Chemical Compostion and Properties
The chemical composition of grade ASTM A182 F904L Flange is outlined in the following table
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| 904L | min. max. |
- 0.02 |
- 2 |
- 1 |
- 0.045 |
- 0.035 |
19 23 |
4 5 |
23 28 |
1 2 |
ASTM F904L Flange Mechanical and Physical Properties
The mechanical properties of grade ASTM A182 F904L Flange are displayed in the following table.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 904L | 490 | 220 | 36 | 70-90 typical | 150 |
ASTM A182 F904L Socketweld Flange
ASME SB649 904L stainless steel flange equivalent grade
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
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