ASTM A387 grade 22 class 2 is a type of ASTM A387 grade 22 steel. ASTM A387 Grade 22 Class 2 As a pressure vessel grade steel for use in elevated temperature service, is used in a variety of industries and is highly effective, particularly in the oil, gas and petrochemical industry, where liquids and gases are often stored at higher temperatures.
ASTM A387 Gr 22 CL 2 is a chromium molybdenum Alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 2.25 % and the Mo content 1.00 %.
ASTM A387 Grade 22 Class 2 specification：
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
ASTM A387 Gr.22 CL.2 steel Chemical Composition:
| A387 Gr.22 CL.2 Chemical Composition | |||||||
| Grade | The Element Max (%) | ||||||
| C | Si | Mn | P | S | Cr | Mo | |
| A387 Gr.22 Cl.2 | 0.04-0.15 | 0.5 | 0.30-0.60 | 0.035 | 0.035 | 1.88-2.62 | 0.85-1.15 |
ASTM A387 Gr.22 CL.2 steel Mechanical Property:
| Grade | A387 Gr.22 CL.2 Mechanical Property | |||
| Thickness | Yield | Tensile | Elongation | |
| A387 Gr.22 Cl.2 | mm | Min Mpa | Mpa | Min % |
| t≦50 | 310 | 515-690 | 18 | |
| 50<t≦200 | - | - | - | |
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