ASTM A182 F304 1.4301 SW Forged Fittings, Nipple, Sockolet, Tee, Elbow, Coupling MSS SP-97
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ASTM A182 F304 1.4301 SW Forged Fittings, Nipple, Sockolet, Tee, Elbow, Coupling MSS SP-97
ASTM A182 F304 SW Forged Fittings, Nipple, Sockolet, Tee, Elbow, Coupling MSS SP-97 refers to a series of piping components manufactured from ASTM A182 Grade F304 (304 Stainless Steel) material, formed through forging processes, and designed for Socket Weld (SW) connections. This product family includes both standard forged fittings (e.g., nipple, tee, elbow, coupling) and specialized branch connection fittings—specifically Socket Weld Outlets (Sockolets) that conform to the MSS SP-97 standard.
These products are primarily used in critical service piping systems that demand high integrity, corrosion resistance, or suitability for high temperature/pressure, commonly found in industries such as petrochemical, oil & gas, power generation, pharmaceutical, and food processing.
| Specification | ASTM A182, ASME SA182 |
| Dimensions | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | 1/4" to 48" |
| Type | Socketweld Fittings, Threaded / Screwed Fittings |
| Rating Pressure | 2000LBS, 3000LBS, 6000LBS, 9000LBS |
Chemical & Mechanical Properties
| ASTM A182 F304 Chemical Composition (%) | |||||||
| C | Mn | Si | P | S | Cr | Ni | N |
| ≤0.08% | ≤2.00% | ≤1.00% |
≤0.045% |
≤0.030% | 18.0%-20.0% | 8.0%-11.0% |
0%-0.1% |
Mechanical Properties
| Tensile Strength | Yield Strength (0.2% offset) | Elongation |
Reduction of Area
|
| ≥515Mpa | ≥205Mpa | ≥30% | ≥50% |
Heat Treating Requirements
|
Heat Treat Type
|
Austenitizing/Solutioning
Temperature °F [°C]
|
Cooling Media
|
Quenching Cool Below °F [°C] |
|
solution treat and quench
|
1900 [1040]
|
liquid
|
500 [260]
|
Key advantage
- 304 Stainless Steel material offers outstanding resistance to corrosion in a wide range of chemical and atmospheric environments.
- Suitable for a broad temperature range from cryogenic (e.g., LNG) to elevated temperatures, maintaining good toughness and strength.
- The Socket Weld (SW) connection, with its full penetration weld, ensures a strong, permanent, and highly reliable joint that minimizes leakage risk.
- Forging densifies the grain structure, providing superior mechanical strength, impact resistance, and fatigue resistance compared to cast fittings.
Key Applications
- Oil, Gas & Petrochemical Industry
- Liquefied Natural Gas & Cryogenic Services
- Power Generation & Energy Sector
- Pharmaceutical & Biotechnology Industry
- Food & Beverage Processing
- Marine & Offshore Engineering
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