GNEE STEEL focuses on the manufacture of large pressure vessels. The head manufacturing workshop primarily produces heads for various specifications of atmospheric and pressure vessels ranging from Φ500mm to Φ10000mm (including elliptical, hemispherical, dished, and flanged conical heads), which are widely used in the petroleum and chemical industries.
With a commitment to continuous innovation, advanced technology, high-quality products, timely delivery, reasonable prices, and excellent after-sales service, the company has earned high praise from users in pressure vessel manufacturing and installation companies. Customers are welcome to inquire, inspect, exchange, and collaborate.
| Performance Table for Part of Large Head Production | |||
| NO. | Specifications | Material quality | Number |
| 1 | EHA5400*(28+3) | Q345+321 | 8 |
| 2 | EHA2400*(10+2) | Q345R+TA2 | 41 |
| 3 | EHA3400*(16+3) | Q345R+321 | 2 |
| 4 | EHA4400*(38+3) | Q345R+316L | 2 |
| 5 | EHA4500*44 | Q345R | 2 |
| 6 | EHA4300*(16+4) | Q345R+316L | 1 |
| 7 | EHA8500*22 | Q235B | 2 |
| 8 | EHA3600*(18+3) | Q345R+321 | 8 |
| 9 | CHA5000*14 | Q345R | 1 |
| 10 | CHA3800*12 | Q345R | 1 |
| 11 | EHA3000*(10+3) | Q235B+316L | 2 |
| 12 | EHA3400*(16+3) | Q235B+304L | 4 |
| 13 | EHA7600*(22+3) | Q345R=304 | 1 |
EHA2400X(20+4) 345R+316 For Egypt Customer
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Base Metals PLATES CS A-55, A-516, A-537 Alloy Steel A-387, A-204 FORGINGS CS A-266, A-350 Alloy Steel A-387, A-204 SS PLATES & FORGINGS 300 series
Product Type Flat plates (square/rectangular) Round discs (heads/tube sheets) Pipes |
Cladding Metals 300 series SS 400 series SS Duplex & Super Duplex Nickel Alloys Alloys 200, 400 Alloys 600, 800 Alloys 625, 825 Alloys 900 Alloys C-276, -22 Alloys C-2000 Alloys 59 Hastelloys * Copper Alloys Copper Nickel Naval Brass Aluminium Aluminium Bronze Titanium Zircunium Tantalium Other Metals (on request) |
Ellipsoidal Head
CR = 0,8Do
KR = 0,154Do
SF = 3t or per request
DH = 0,255Do – 0,635t
THi = DF+DH
D0 = external head diameter
Di = internal head diameter
CR = crown radius
KR = knuckle radius
SF = straight flange height
DH = depth of dishing
THi = total internal head height
t = wall thickness
1.Material:
| Material | Base metal: SA515\516, SA387, Q345R, A36 etc. Base metal thick: 8~~200mm Cladding steel: 301S, 410S, 405, 304L, 316L, 321, 904L, Inconel 625, 825, etc. Duplex 2205 Cladding steel thick: 2~~12mm |
2 .Processing scope for those Ellipsoidal Head/Hemispherical Head/Dished Head
| ID | DN | wallthickness | SF | End |
| 12''-236'' | 300MM-10000mm | 2-100mm | 0-50mm | Beveling acc to std or drawing |
3.Testing : non-destructive(UT,RT,MT,PT)
non-contact type temperature measuring apparatus
4. Forming method:cold and hot pressing,cold and hot spinning,hot formed,punching
5. License:Manufacture License of Special Equipment People's Republic of China(A3 Head)
6. Application:Our different material and specification heads can be used in many fileds,such as petroleum,chemical industry,boiler,pressure vessels,railway transportation,metal structure,water supply facilities and aerospace engineering,etc.
7.Tolerance of groove angle and groove dimension ,groove surface roughness as follows:
Items
Tolerance
groove angle
±2.5°
groove dimension
±1mm
groove surface roughness
no cracks,delamination,inclusions and other defects
Forming ability
Continuously investing in technology upgrades and infrastructure enhancements, we strive to expand our forming capacity to accommodate market demands and customer requirements effectively. By cold punching press we produce heads and bottoms with diameters of up to 3,500 mm and wall thicknesses of 30 mm. Through pressing and hot flanging forming processes, heads and bottoms with diameters of up to 12,000 mm and wall thicknesses of 80 mm.
