ASTM A182 F316 Socket Weld ( SW ) Coupling ASME B16.11 Class 6000
ASTM A182 F316 Socket Weld ( SW ) Coupling ASME B16.11 Class 6000
ASTM A182 F316 SW Coupling Fittings are typically used in many industries including food processing, marine, oil & gas,and cooling water systems. Since they are forged into Class 3000 & 6000 high pressure ratings.
Stainless steel pipe fittings are ideal for applications that involve chemicals or liquids that may be corrosive. Along with fighting corrosion, stainless steel pipe fittings will also prevent contamination making it useful to many professionals and those who seek durability and longevity.
Stainless Steel SW Fittings Dimensions
Standard: ASME/ANSI B16.11, BS3799, EN ISO 4144, EN 10241
Size: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″
Pressure Ratings: 2000LB, 3000 LB, 6000 LB
Surface: Pickling, Solution Heat Treatment and Anti-rust Oil.
Steel Pipe Coupling Types
Shape Types
Straight Coupling and Reducing Coupling.
Connection Types
Socket Welded Coupling and Threaded (Screwed) Coupling.
Form Types
Full Coupling and Half Coupling
ASTM A182 F316 Meaning
ASTM A182 F316 is material grade for forged stainless steel flanges and fittings and supplied in the Solution Annealed condition.
Heat Treatment
The temperature of the forging is not less than the minimum solution temperature 1040℃ and rapidly quenched in 260℃. Heat treatment of forgings may be performed before machining.
Chemical Properties
| C | Mn | Si | P | S | Cr | Mo | Ni |
| 0.035 | 2 | 0.75 | 0.045 | 0.03 | 16-18 | 2-3 | 10-14 |
Mechanical Properties
| Tensile Strength | Yield Strength | Elongation | Reduction |
| 515 (Mpa) | 205 (Mpa) | 30 (%) | 50 (%) |
Corrosion Resistance
ASTM 182 F316 has excellent corrosion resistance when exposed to a range of corrosive environments. However it is not resistant to warm sea water. That can cause pitting and crevice corrosion. It will also suffer from stress corrosion cracking above 60℃.
Class 3000 & 6000 Coupling Weight
| Nominal Size | Weight/kg | ||
| DN | NPS | 3000 | 6000 |
| 6 | 1/8 | 0.06 | 0.09 |
| 8 | 1/4 | 0.08 | 0.13 |
| 10 | 3/8 | 0.11 | 0.24 |
| 15 | 1/2 | 0.22 | 0.4 |
| 20 | 3/4 | 0.3 | 0.52 |
| 25 | 1 | 0.55 | 1.06 |
| 32 | 1 1/4 | 0.86 | 1.32 |
| 40 | 1 1/2 | 1.26 | 2.2 |
| 50 | 2 | 1.65 | 3.37 |
| 65 | 2 1/2 | 3 | 4.81 |
| 80 | 3 | 4.25 | 7.25 |
| 100 | 4 | 7.8 | 12 |
| Nominal Diameter | Coupling Cap | Half-Coupling Boss | |
| End to End | End to End | ||
| DN | NPS | E F | E/2 |
| 6-8 | 1/8-1/4 | ±0.7 | ±0.4 |
| 10-20 | 3/8-3/4 | ±1.5 | ±0.8 |
| 25-50 | 1-2 | ±2 | ±1 |
| 65-100 | 2 1/2-4 | ±2.5 | ±1.3 |
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