13/08/2023 22:24:52
2 answers in:
Product Standards
Regarding the thickness, width, and length standards for boiler and pressure vessel plates, the following explanation is segmented according to domestic and international standards.
I. Domestic Chinese Standards (GB Standards)
Chinese steel plates for boilers and pressure vessels primarily comply with GB/T 713 “Steel Plates for Boilers and Pressure Vessels” and GB/T 709 “Dimensions, Shape, Weight and Permissible Deviations for Hot-Rolled Steel Plates and Steel Strips.”
Thickness
Common Range: Common thicknesses for boiler and pressure vessel plates typically range from 6 mm to 150 mm.
Theoretical Range: According to GB/T 709, the thickness range for single-rolled plates (which boiler and pressure vessel plates mostly fall under) is extremely broad, extending from 3 mm to over 400 mm. However, in practical applications, extremely thin or thick specifications (e.g., exceeding 200 mm) require specialized production and inspection capabilities.
Core Requirements: Thickness is a critical parameter with extremely stringent requirements for negative deviations and uniformity; negative deviations are typically not permitted.
Width
Common Range: 1500 mm to 4000 mm.
Production Capability: Advanced domestic wide plate rolling mills can produce plates up to 4800 mm or even 5350 mm wide, used for manufacturing large vessel shells to minimize longitudinal welds.
Length
Common Range: 6000 mm to 18000 mm.
Production Capacity: Constrained by rolling mill, heat treatment furnace, and transportation limitations, single-rolled plates typically range from 4000 mm to 25000 mm in length. Currently, the longest plates exceed 26000 mm.
II. Commonly Used International Standards
The most widely adopted standards internationally are those from the American Society of Mechanical Engineers (ASME) and the European Standards (EN).
1. ASME Standards (United States)
Material Standards: Examples include SA-516 (Carbon Steel Plates for Pressure Vessels) and SA-387 (Chromium-Molybdenum Alloy Steel Plates).
Dimension Standards: Follow ASTM A6/A6M.
Thickness: Common range is similar to domestic standards, from 6 mm to 150 mm. The upper limit covered by the standard can reach 300 mm.
Width and Length: No fixed values; depends on mill production capacity. Mills in North America typically offer plates up to 4800 mm wide and over 24000 mm long. Orders often use imperial units.
2. EN Standards (Europe)
Material Standard: EN 10028-2 (Flat-rolled products for pressure purposes).
Dimension Standard: Follows EN 10029.
Thickness: Common range 5 mm to 200 mm.
Width: Typically 1500 mm to 4800 mm.
Length: Typically 4000 mm to 24000 mm.
The national standards for boiler & vessel steel plate in China are generally based on specific needs and applications, with different implementation standards for different applications. Therefore here we can only provide general standard information for reference only. Some common thicknesses of boiler & vessel steel plate in the Chinese national standard range from 8mm to 300mm, with common standard thicknesses of 8mm, 10mm, 12mm, 16mm, 20mm, etc. In addition, common widths of boiler vessel plates range from 1500mm to 4020mm and its common lengths range from 5000mm to 18800mm.
|
|
|
|
|
| Timely Info | Independent | Platform | Multiple guarantees | Self-operated storage |
China Steel Market
Empowering small and medium-scale steel purchasing
| About us | Channel | Useful tools |
|---|---|---|
| About China Steel Market | Prices | Steel Weight Calculation |
| Contact Us | Answers | Why Choose Us |
| Terms & Conditions | Inventory | |
| Privacy Policy | Help |
Hot search words:
