SUS304 5K BL-FF Stainless Steel Flange JIS B2220 Standard 3/8" to 60" Size Range
High-performance JIS B2220 standard blind flat face flanges manufactured from SUS304 stainless steel, designed for industrial piping systems requiring reliable sealing and heat resistance.
SUS304 is a Japanese JIS standard stainless steel containing 18% chromium and 8% nickel, offering excellent strength, heat resistance, corrosion resistance, weldability, and mechanical properties across temperature ranges.
| Standard | Grade | C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Ni |
|---|---|---|---|---|---|---|---|---|
| JIS G4303 | SUS304 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18-20 | 8-10.5 |
| Standard | Grade | Dia. (mm) | Yield Strength (N/mm²) | Tensile Strength (N/mm²) | Elongation (%) | Hardness (HB) | Hardness (HV) |
|---|---|---|---|---|---|---|---|
| JIS G4303 | SUS304 | d≤180 | ≥205 | ≥520 | 40 | ≤187 | ≤200 |
Blind flanges feature a solid surface with bolt holes to seal pipeline ends or create termination points. The flat face design provides a gasket surface in the same plane as the bolting circle, ideal for mating with cast flanges and fittings.
- Pipeline maintenance and repair operations
- Petrochemical and industrial waterworks systems
- Pumps, valves, and vessels in manufacturing
- Food processing equipment and heat exchangers
- Mining support and nuclear power systems
| Parameter | Specification |
|---|---|
| Product Name | SUS304 5K BL-FF Flange |
| Size Range | 3/8" to 60" |
| Pressure Class | 5K (5kg/cm²) |
| Standards | JIS B2220 |
| Face Type | PTFF |
| Materials | SUS304 |
| Origin | China |
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