Pressure Vessel Plate Size & Thickness Chart

Applications That Depend on Correct Sizing

Proper sizing of plates is critical for:

Importance of Thickness Accuracy in Pressure Retention

Thickness determines the pressure-bearing capacity. Our plates are available from 5 mm to 150 mm, depending on the grade and project requirement. For HIC/NACE applications, thickness selection also considers hydrogen diffusion limits.

Global Standards Followed for Plate Sizing

We supply plates as per:

• ASTM A516 Gr 60 / 70
• ASTM A387 Gr 11 / 22
• EN 10028 P265GH / P355NH
• DIN 17155 HII / 17Mn4
• All plates conform to IBR/PED/ISO as required.

Standard Plate Thickness Chart (in mm)

Grade	Min Thickness	Max Thickness	Common Thickness
A516 Gr 60 / 70	6 mm	150 mm	8 / 10 / 12 / 25
A387 Gr 11 / 22	6 mm	120 mm	10 / 16 / 20 / 40
P265GH / P355NH	5 mm	100 mm	6 / 12 / 20
DIN 17155 HII / 17Mn4	6 mm	100 mm	10 / 20 / 30

Custom Cut-to-Size Options Available

We provide:

• Mill edges or sheared edges
• Fixed width/length orders
• Cut-to-shape profiles (circular, trapezoidal, elliptical)
  This ensures zero material waste at the buyer’s end.

Fabricator-Friendly Lengths & Handling Sizes

Length options:

• 4000 mm, 6000 mm, 8000 mm, 12000 mm
• Coil cut lengths also available
• Custom packaging for easy crane lifting & shop movement

Why Our Dimensional Precision Saves Buyer Costs

Precision cutting, calibrated thickness, and zero deviation edges reduce:

• Welding time
• Fit-up effort
• Rejections due to out-of-spec materials

Grades Most Commonly Supplied by Size

• A516 Gr 70 – 10/12/20/25/50 mm
• A387 Gr 11/22 – 12/16/25/40 mm
• P265GH – 6/8/12/20 mm
• HIC-tested plates – 8 mm to 40 mm