Changhui manufactures carbon steel heads from grades used in general fabrication and pressure-vessel work, including Q235, Q355B, Q245R, and Q345R. The final profile may be elliptical, torispherical, hemispherical, conical, or another drawing-defined shape. Plate thickness, diameter, and forming depth are reviewed before production. Press forming suits regular sizes, while cold or hot spinning gives flexibility for large-diameter and non-standard work. After forming, the surface, contour, straight section, and edge condition are checked so the head can be matched to the shell with controlled fit-up.
Product Parameters
|
Item |
Available specification |
|
Product |
carbon steel heads |
|
Material grades |
Q235, Q355B, Q245R, Q345R; other grades by drawing |
|
Typical shapes |
Elliptical, torispherical, hemispherical, conical, flat, formed special shapes |
|
Forming equipment |
1200T / 1000T / 500T / 315T hydraulic presses; cold/hot spinning lines |
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Edge processing |
Trimming and beveling can be arranged to drawing |
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Inspection options |
Dimensional inspection, material analysis, non-destructive testing as specified |
Dimensions are produced to the approved drawing rather than a single fixed catalogue size. This is important for replacement heads and project work where shell diameter, straight flange, and welding allowance may differ.
Main Applications
Chemical and energy equipment, including reactors, separators, heat exchangers, and storage vessels.
Water-supply, fire-protection, heating, and pressure-stabilizing tanks.
Machinery, environmental equipment, boilers, and fabricated process systems using carbon steel heads as welded end closures.
Our Factory
The Changhui workshop includes raw-material, stamping, spinning, polishing, inspection, finished-goods, and shipping areas. Cutting, grinding, beveling, shaping, and welding equipment support the forming lines. For overseas orders, production progress and inspection requirements can be coordinated before packing, which helps keep drawing revisions, material records, and shipment documents tied to the same order.
FAQ
Q: Which material information should be provided?
A: State the grade, thickness, required standard, heat-treatment condition if applicable, and any certificate requirement.
Q: Can carbon steel heads be made for non-standard vessels?
A: Yes. Diameter, depth, straight-flange length, edge preparation, and shape can be produced from an approved drawing.
Q: What should be confirmed before production?
A: Confirm the vessel geometry, material, nominal thickness, quantity, forming standard, tolerances, inspection scope, and delivery condition.
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