


Product Introduction
Carbon steel head is a component used to seal the ends of pipelines, containers, or equipment, usually made of carbon steel material. They are very important in many industrial applications, especially in industries such as petroleum, chemical, and power. Carbon steel heads can be manufactured in different shapes and sizes according to different processes and requirements, commonly including circular, elliptical, conical, etc.
Characteristics of carbon steel head
1. High strength: Carbon steel materials have good strength and toughness, and can withstand high pressure and temperature.
2. Corrosion resistance: Although carbon steel itself has poor corrosion resistance, its corrosion resistance can be improved through coatings or other protective measures.
3. Good processability: Carbon steel is easy to process and weld, suitable for various manufacturing processes.
4. Low cost: Compared with other materials, carbon steel has a relatively low cost and is suitable for large-scale production.
Common head types
1. Flat head: Flat in shape, suitable for situations with low pressure.
2. Spherical head: The spherical design can evenly distribute internal pressure and is suitable for high-pressure applications.
3. Elliptical head: commonly used in pressure vessels, with good strength and pressure bearing capacity.
4. Conical head: Used for pipelines or containers that require gradual diameter change.
Application areas
● Oil and natural gas: used for oil and gas storage tanks and transportation pipelines.
● Chemical industry: used for sealing equipment such as reactors and storage tanks.
● Electric power industry: used for equipment such as boilers and heat exchangers.
When selecting carbon steel heads, factors such as working environment, pressure rating, temperature, etc. need to be considered to ensure that they can meet the requirements for use.
Technical parameters
Nominal diameter | End outer diameter | Distance from back face to end face | ||||
DN | NPS | Series A | Series B | E | Ultimate thickness T at length E | E1 |
15 | 1/2 | 21.3 | 18 | 25 | 4.57 | 25 |
20 | 3/4 | 26.9 | 25 | 25 | 3.81 | 25 |
25 | 1 | 33.7 | 32 | 38 | 4.57 | 38 |
32 | 1.1/4 | 42.4 | 38 | 38 | 4.83 | 38 |
40 | 1.1/2 | 48.3 | 45 | 38 | 5.08 | 38 |
50 | 2 | 60.3 | 57 | 38 | 5.59 | 44 |
65 | 2.1/2 | 76.1(73) | 76 | 38 | 7.11 | 51 |
80 | 3 | 88.9 | 89 | 51 | 7.62 | 64 |
90 | 3.1/2 | 101.6 | 64 | 8.13 | 76 | |
100 | 4 | 114.3 | 108 | 64 | 8.64 | 76 |
125 | 5 | 139.7 | 133 | 76 | 9.65 | 89 |
150 | 6 | 168.3 | 159 | 89 | 10.92 | 102 |
200 | 8 | 219.1 | 219 | 102 | 12.7 | 127 |
250 | 10 | 273 | 273 | 127 | 12.7 | 152 |
300 | 12 | 323.9 | 325 | 152 | 12.7 | 178 |
350 | 14 | 355.6 | 377 | 165 | 12.7 | 191 |
400 | 16 | 406.4 | 426 | 178 | 12.7 | 203 |
450 | 18 | 457.2 | 478 | 203 | 12.7 | 229 |
500 | 20 | 508 | 529 | 229 | 12.7 | 254 |
550 | 22 | 559 | 254 | 12.7 | 254 | |
600 | 24 | 610 | 630 | 267 | 12.7 | 305 |
650 | 26 | 660 | 267 | 1 | 1 | |
700 | 28 | 711 | 720 | 267 | 1 | |
750 | 30 | 762 | 267 | 1 | ||
800 | 32 | 813 | 820 | 267 | ||
850 | 34 | 864 | 267 | 1 | ||
900 | 36 | 914 | 920 | 267 | 1 | |
950 | 38 | 965 | 305 | 1 | ||
1000 | 40 | 1016 | 1020 | 305 | ||
1050 | 42 | 1067 | 305 | |||
1100 | 44 | 1118 | 1120 | 343 | ||
1150 | 46 | 1168 | 343 | |||
1200 | 48 | 1220 | 1220 | 343 | ||
Note: Height E is applicable when T does not exceed the value in brackets, otherwise E1 height should be used. |
Keywords



Carbon Steel Head Cap
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