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What is a Class 3000 Socket Weld Coupling
Couplings are used to connect small size bored pipes, it includes two different connection types, threaded and socket weld. Class 3000 socket weld , a connection type that a pipe or fittings are inserted into a pipe is inserted into a sunken area at the end of another pipes or fittings. Through ASME B16.11 standard, there are three different pressure ratings for socket weld fittings class 3000/6000/9000, so class 3000 socket weld coupling is the most commonly used and has the lowest requirement for using in among all kinds of couplings.
Specification of Socket Weld Coupling
Size Range | 1/8" - 4" / DN6 - DN100 |
Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
Carbon Steel | ASTM A105 / A105N, A350 LF2/LF3, ASTM A694 F42 / F46 / F56 / F60 / F65 |
Alloy Steel | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92 |
Stainless Steel | ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L |
Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
How Many Types of Socket Weld Coupling
Straight Coupling
Reducing Coupling
Socket Weld Full Coupling
Socket Weld Half Coupling
Carbon Steel Socket Weld Coupling
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Cu | Ni | Cr | Mo | V |
| ASTM A105 | MIN | 0.60 | 0.10 | ||||||||
| MAX | 0.35 | 1.05 | 0.035 | 0.040 | 0.35 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 |
Stainless Steel Socket Weld Coupling
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | N |
| ASTM A182 F304 | MIN | 8.00 | 18.00 | ||||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.00 | 20.00 | 0.10 | |
| ASTM A182 F304L | MIN | 8.00 | 18.00 | ||||||
| MAX | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 13.00 | 20.00 | 0.10 |
Marking of Socket Weld Coupling
Basing on the marking requirement in ASME B16.11 standard, markings on fittings including class 3000 socket weld fittings should content below information.
a. Size: 3/4"
b. Pressure: 3000#
c. Material Grade: ASTM A182 F12
d. Type: SW
e. Standard: ASME B16.11
f. Heat No.: 134
Weight Chart of Class3000 Socket Weld Coupling
DN | NPS | B | D | C | |
3000 | 3000 | ||||
6 | 1/8 | 10.9 | 6.1 | 3.18 | 3.18 |
8 | 1/4 | 14.3 | 8.5 | 3.78 | 3.3 |
10 | 3/8 | 17.7 | 11.8 | 4.01 | 3.5 |
15 | 1/2 | 21.9 | 15 | 4.67 | 4.09 |
20 | 3/4 | 27.3 | 20.2 | 4.9 | 4.27 |
25 | 1 | 34 | 25.9 | 5.69 | 4.98 |
32 | 1-1/4 | 42.8 | 34.3 | 6.07 | 5.28 |
40 | 1-1/2 | 48.9 | 40.1 | 6.35 | 5.54 |
50 | 2 | 61.2 | 51.7 | 6.93 | 6.04 |
65 | 2-1/2 | 73.9 | 61.2 | 8.76 | 7.62 |
80 | 3 | 89.9 | 76.4 | 9.52 | 8.3 |
100 | 4 | 115.5 | 100.7 | 10.69 | 9.35 |
What is a Class 3000 Socket Weld Coupling
Couplings are used to connect small size bored pipes, it includes two different connection types, threaded and socket weld. Class 3000 socket weld , a connection type that a pipe or fittings are inserted into a pipe is inserted into a sunken area at the end of another pipes or fittings. Through ASME B16.11 standard, there are three different pressure ratings for socket weld fittings class 3000/6000/9000, so class 3000 socket weld coupling is the most commonly used and has the lowest requirement for using in among all kinds of couplings.
Specification of Socket Weld Coupling
Size Range | 1/8" - 4" / DN6 - DN100 |
Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
Carbon Steel | ASTM A105 / A105N, A350 LF2/LF3, ASTM A694 F42 / F46 / F56 / F60 / F65 |
Alloy Steel | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92 |
Stainless Steel | ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L |
Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
How Many Types of Socket Weld Coupling
Straight Coupling
Reducing Coupling
Socket Weld Full Coupling
Socket Weld Half Coupling
Carbon Steel Socket Weld Coupling
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Cu | Ni | Cr | Mo | V |
| ASTM A105 | MIN | 0.60 | 0.10 | ||||||||
| MAX | 0.35 | 1.05 | 0.035 | 0.040 | 0.35 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 |
Stainless Steel Socket Weld Coupling
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | N |
| ASTM A182 F304 | MIN | 8.00 | 18.00 | ||||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.00 | 20.00 | 0.10 | |
| ASTM A182 F304L | MIN | 8.00 | 18.00 | ||||||
| MAX | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 13.00 | 20.00 | 0.10 |
Marking of Socket Weld Coupling
Basing on the marking requirement in ASME B16.11 standard, markings on fittings including class 3000 socket weld fittings should content below information.
a. Size: 3/4"
b. Pressure: 3000#
c. Material Grade: ASTM A182 F12
d. Type: SW
e. Standard: ASME B16.11
f. Heat No.: 134
Weight Chart of Class3000 Socket Weld Coupling
DN | NPS | B | D | C | |
3000 | 3000 | ||||
6 | 1/8 | 10.9 | 6.1 | 3.18 | 3.18 |
8 | 1/4 | 14.3 | 8.5 | 3.78 | 3.3 |
10 | 3/8 | 17.7 | 11.8 | 4.01 | 3.5 |
15 | 1/2 | 21.9 | 15 | 4.67 | 4.09 |
20 | 3/4 | 27.3 | 20.2 | 4.9 | 4.27 |
25 | 1 | 34 | 25.9 | 5.69 | 4.98 |
32 | 1-1/4 | 42.8 | 34.3 | 6.07 | 5.28 |
40 | 1-1/2 | 48.9 | 40.1 | 6.35 | 5.54 |
50 | 2 | 61.2 | 51.7 | 6.93 | 6.04 |
65 | 2-1/2 | 73.9 | 61.2 | 8.76 | 7.62 |
80 | 3 | 89.9 | 76.4 | 9.52 | 8.3 |
100 | 4 | 115.5 | 100.7 | 10.69 | 9.35 |
