Forget Fittings ANSI / ASME B16.11
Threaded Hex Plug
Kaizen Steel Industries specializes in manufacturing high-quality Forged Threaded Fittings Hex Head Plugs, adhering to ASME B16.11 and BS3799 standards. Our Hex Head Plugs are engineered for versatility and reliability across various industries, including oil refineries, chemical processing, and petrochemical applications.
Kaizen Steel Industries offer these plugs at competitive prices, ensuring you receive exceptional value. Designed for secure sealing and reliable performance, our Hex Head Plugs are an excellent choice for diverse industrial needs.
The ASTM A182 specification covers forged or rolled alloy and stainless steel pipe flanges, fittings, valves, and parts. Specifically, this standard pertains to threaded hex plugs designed for high-temperature service applications.
Key points of the specification include
- Heat Treatment: After hot working, the threaded hex plugs must be cooled to a specified temperature before undergoing heat treatment. This process must comply with specific requirements such as heat treatment type, austenitizing or solution temperature, cooling media, and quenching.
- Material Composition: The materials used in the production of threaded hex plugs must meet precise chemical composition requirements. Key elements include phosphorus, silicon, carbon, manganese, nickel, chromium, molybdenum, columbium, and titanium.
Mechanical Properties: The material must conform to the mechanical property requirements for the specified grade, including tensile strength, yield strength, elongation, and Brinell hardness. Additionally, all H grades and grade F 63 plugs must be tested for average grain size.
SS 310 Threaded Square Plug
- Composition: Typically contains around 25% chromium and 20% nickel. This composition provides the plug with exceptional resistance to oxidation and corrosion.
Applications: Ideal for use in high-temperature environments where resistance to oxidation is critical. Its high chromium and nickel content enhance its performance in various industrial settings.
Grade 310S Forged Hex Plug
- Composition: A low-carbon version of SS 310, designed to minimize brittleness and reduce the risk of sensitization in high-temperature applications.
- Advantages: The lower carbon content of Grade 310S makes it less prone to brittleness and sensitization compared to regular SS 310. This property ensures better durability and performance under extreme conditions.
Applications: Suitable for use in reducing sulfur atmospheres, such as those containing hydrogen sulfide (H2S). Commonly used in petrochemical environments and moderately carburizing atmospheres where high resistance to corrosion and high temperatures is required.
Both types of threaded fittings are widely used in applications where durability and resistance to harsh conditions are essential. Their ability to withstand extreme temperatures and corrosive environments makes them ideal for industrial applications, particularly in the petrochemical sector.
The ASME B16.11 standard outlines the specifications for Forged Threaded Square Plugs, including ratings, tolerances, marking, dimensions, and material requirements. These fittings are categorized into:
- Threaded End Fittings: Class 2000, 3000, and 6000
- Socket-Weld End Fittings: Class 3000, 6000, and 9000
The standard ensures compatibility with other ASME standards and specifications, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes. Forged Threaded Square Plugs are utilized in a variety of industrial settings, including chemical processing, oil refineries, and petrochemical industries. The design allows these plugs to effectively seal holes or cavities in various applications.
Round Head Plug Specification
| Standard | Dimension | Size | Class | Type |
|---|---|---|---|---|
| ANSI/ASME | ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799 | 1/8″ NB TO 4″ NB | 2000LBS, 3000LBS, 6000LBS | Threaded Hex Head Plug |
Forged Threaded Hex Plug Standards
| ASME B16.11 Threaded Plug: | ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799 |
| DIN: | DIN2605, DIN2615, DIN2616, DIN2617, DIN28011 |
| EN: | EN10253-1, EN10253-2 |
Threaded Hex Plug Material & Grades
| Material | Specifications |
|---|---|
| Stainless Steel Threaded Hex Head Plug | ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L, ASTM A312/A403 TP304, TP304L, TP316, TP316L |
| Carbon Steel Threaded Hex Head Plug | ASTM A105, A350 LF2, A106 Gr.B, A234 WPB |
| Alloy Steel Threaded Hex Head Plug | ASTM/ASME A182, ASTM/ASME A335 GR P1, P5, P9, P11, P12, P22, P23, P91, ASTM/ASME A691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91 |
| Duplex Steel Threaded Hex Head Plug | ASTM/ASME A182 / SA182, A790 / SA790 UNS No S31803, S32205 |
| Super Duplex Threaded Hex Head Plug | ASTM/ASME A182 / SA182, A790 / SA790 UNS No S32750, S32950 |
| Nickel Alloy Threaded Hex Head Plug | ASTM B336, ASME SB336, Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Copper Nickel (Cupro-Nickel 90/10 & 70/30) |
| Low Temperature Carbon Steel Threaded Hex Head Plug | ASTM/ASME A420 SA/420 WPL3, WPL6 |
Types of ASME B16.11 Threaded Plug
Class 3000 elbow, Threaded Square Plug
Class 6000 elbow, Threaded Square Plug
Class 9000 elbow, Threaded Square Plug
B16.11 Threaded Square Plug
Threaded Hex Plug Dimensions
| NPS | Minimum Length E |
Minimum Hex Height J |
Nominal F |
| 1/2 | 14 | 8 | 22 |
| 3/4 | 16 | 10 | 27 |
| 1 | 19 | 10 | 35 |
| 1 ¼ | 21 | 14 | 44.5 |
| 1 ½ | 21 | 16 | 51 |
| 2 | 22 | 18 | 63.5 |
| 2 ½ | 27 | 19 | 76 |
| 3 | 28 | 21 | 89 |
| 4 | 32 | 25 | 117.5 |
Threaded Fittings Hex Plug Sizes
| NPS | Minimum Length E | Minimum Hex Height J | Nominal F |
| 1/2 | 14 | 8 | 22 |
| 3/4 | 16 | 10 | 27 |
| 1 | 19 | 10 | 35 |
| 1.1/4 | 21 | 14 | 44.5 |
| 1.1/2 | 21 | 16 | 51 |
| 2 | 22 | 18 | 63.5 |
| 2.1/2 | 27 | 19 | 76 |
| 3 | 28 | 21 | 89 |
| 4 | 32 | 25 | 117.5 |
BS3799 Screwed Forged Square Plug Sizes Chart
| NPS | Minimum Length E | Minimum Square Height C | Minimum Width Flats B |
| 1/2 | 14 | 10 | 14 |
| 3/4 | 16 | 11 | 16 |
| 1 | 19 | 13 | 21 |
| 1.1/4 | 21 | 14 | 24 |
| 1.1/2 | 21 | 16 | 28 |
| 2 | 22 | 18 | 32 |
| 2.1/2 | 27 | 19 | 36 |
| 3 | 28 | 21 | 41 |
| 4 | 32 | 25 | 65 |
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